Archive of Our Own ^beta

Chapter Text

Stiles was racing home after finally finding a new book he’d been looking for, for a while now, to hopefully learn some new magic skills. Dodging the few pedestrians there were, and only almost getting tripped by a few leashes, and dodging a few cars too as he raced home. As Stiles kept running, he recalled the events that had led to him holding the book now in his arms.

Earlier that Day…

Stiles had been walking down the street when suddenly he’d felt drawn into a local antique store. He knew the feeling well enough by now and that it was usually linked to magic in some way. He’d been heavily pursuing magic and training in it for about five years now, having to rely on the occasional book, videos, or the occasional reddit thread to hone his skills and spells.

Walking into the shop Stiles focused for a moment to find what had drawn him in. He had barely tapped the energy of the item before it commanded him to find it. He quickly found himself walking back to a shelf and once there his hand was automatically drawn to a large dusty book on the middle of the shelf. He quickly pulled it from the shelf and was surprised by the weight, causing him to almost drop the book as he lost his balance. Quickly saying a spell before feeling a familiar force pull back on his shoulders to help him recover his balance.

Stiles looked around to make sure no one had seen him use the spell. “Dammit Stilinski you know you’re supposed to be more careful!” He chided himself, knowing that if Derek had been there, he would’ve done the same. Stiles smiled while thinking of his boyfriend before putting the book on a nearby counter to peruse through it. Flipping through the pages he quickly discovered that this book was indeed what had drawn him into the store. He finished his quick glance and closed the book before picking it up and heading to the checkout counter and the old lady behind it.

“How much is this book?” Stiles said with such excitement he almost yelled at the old woman behind the counter while dropping the book onto the counter. He quickly noticed the old woman behind the counter didn’t even budge or acknowledge him. Stiles took a closer look at her and soon figured out why, she was asleep. “Excuse me...Ma’am…. MA’AM!!” Stiles didn’t want to shout but it finally got her attention as she sat up and blinked a few times before she reached for her glasses, sliding the thick plastic frame on slowly. She smiled as Stiles came into focus “Hello young man, how may I help you?” Stiles smiles at her and pats the book “How much are you asking for this book?”

She slowly reaches towards the book and looks at it then Stiles then the book again. “Well, that book has been here for so long that if you want it how about ten dollars?” Stiles smiles and whips out his wallet so fast it almost goes flying out of his hand. He eagerly puts a ten-dollar bill on the counter and grabs the book and rushes out. “Thank you so much have a nice day!”

Back to the present…

As Stiles kept running down the street, he heard his phone chime, quickly stopping to look and see that he had a text from Derek. “Morning my handsome fox, got some final stuff to take care of this morning but I’ll definitely be home tonight. Hope you didn’t make too much of a mess at home! Love you!” Stiles smiled while reading the message and responded. “Morning to you too sour wolf, thanks for the heads up, no rush I’m keeping myself busy, can’t wait to see you tonight, Love you!! XOXOXOXXXX!! Ps.

I’ve kept home pretty clean thank you!” Stiles puts his phone up and gets back to running home.
Stiles finally turns the corner of the street and sees Derek’s…no their place before him. Smiling as he stills gets butterflies while thinking about how it’s Derek’s and his place now. He had lived with him for just over three and a half years now. Stiles and Derek had already been talking about him moving in with Derek anyway but one really embarrassing night had sped things up quite a bit. Let’s just say it involved a noise complaint and the sheriff aka Stiles’ Dad hearing and seeing WAY more of Derek and Stiles than he had EVER wanted to!

Stiles approaches the front door while quickly saying a spell to unlock it before hearing a click and opening it. Speeding down the hall he steps onto the freight elevator that went up to their place on the top floor. The elevator creaked and groaned as it moved up and much to Stiles’ annoyance it seemed to be going incredibly slow. “Come on…come on you, stupid elevator!” Stiles growled in frustration but soon the elevator stopped, and he pulled open the large door that lead into the loft.

The loft still seemed so spacious even with all the furniture in it now. He and Derek had setup the “living room” along the west part of the room, with two couches and three recliners in the space now, along with an entertainment system with a large TV. Stiles had gone shopping for the TV cause the one Derek wanted was too small for anything really. Derek complained about the size of it but didn’t mind for long; he’d quickly adapted to movie nights and cuddling on the couch with Stiles. The newest addition was the kitchen area that Derek had put in along the eastern wall, close to the “bedroom” at least that’s what Derek called it.

Stiles and Derek had had the discussion quite a few times about how a bed and a privacy screen do NOT make a proper bedroom. Originally Derek hadn’t had the privacy screen, but Stiles made him get it shortly after he moved in. Stiles wanted at least some level of privacy when there was company over. The kitchen had been easy enough to convince Derek to get it put in, after all they both wanted it. Convincing Derek to get an actual bedroom put in was a battle but Stiles wasn’t going to back down!

Stiles continued racing past the living area and towards his desk, it was situated on the west side of the large window of the loft. On the opposite side of the window was the “bedroom”, the blankets tossed all onto one side of the bed. Stiles scowled at the bed knowing that Derek would say something if he was there about Stiles not making the bed before he ran his errands. Stiles said a quick spell and motioned his hands towards the bed, watching the blankets and pillows quickly rearrange themselves as the bed was made. Nodding in approval Stiles turned back to his desk.

Plopping down the book and then himself into the chair before waving his hand and saying a single word to turn on his desk light. Stiles started thumbing through the book again, this time going page by page. As Stiles flipped through the first part of the book, he started to become frustrated as every page he came across was truly beginners’ stuff and he knew ALL of it. He was starting to wonder if the book had tricked him in the shop?

When Stiles had first gotten into studying magic, he’d quickly discovered that magic was a bit fickle and tricky. Not just metaphorically but literally, as well since he’d had a spell or two go wrong either by mispronunciation or missing an important ingredient. He’d also found a book that kept changing what was in it from spells, to poems, then to potion recipes, etc. Usually while in the process of reading from it, causing a few mishaps. That book now sat in a box, stuffed into the back of a closet at the loft, with a DO NOT USE warning on it.

Stiles was beginning to wonder if maybe he was about to add another book to that box even though he thought he’d found such a score at the store earlier. As he gets further into it though he finds a more and more new spells, potions, rituals, etc. Stiles carefully reads over some of the new material but doesn’t stop for too long on any of them. Before long he makes it close to the end of the book.

As Stiles is looking at the last few pages, he notices that they seem empty except for a few words scattered on them. He starts looking at the pages a bit closer, noticing that they seem thinner, almost see through. While messing with them he notices a pattern of symbols on the pages and soon finds that the pages overlap themselves. Noticing the pattern, he gets them to merge together but the words are still foggy, as if hidden by something? Stiles closes his eyes and concentrates while saying the spell to activate his true sight. When he opens his eyes, he sees the book glowing faintly and the words he’s looking at all glow a feint orange. His eyes open wide as he discovers the secret, it’s a hidden spell and as he looks over it, he softly says the spell out loud.

“A spell for those who wish to find a way to bend reality with their mind. Just say these words and soon you’ll see, the ultimate power you can achieve.” As Stiles finishes reading the spell the words suddenly start to glow even brighter along with the whole book, eventually getting so bright Stiles has to shield his eyes. As Stiles stands, he keeps his eyes closed and says the spell to deactivate his true sight. Opening his eyes slowly before backing away from the desk he sees the words of the spell are still glowing brightly. Then they start to lift off the page before merging to form a bright orb that hovers in the air as a strong gust of air blows around the room, blowing loose papers off the desk and a nearby board. “Oh shit…what have I done; Derek is going to kill me!” Stiles says a bit panicked.

Suddenly a voice starts to chant the same spell that Stiles had just said over and over while getting louder and louder until the orb flies around the room and then straight into Stiles. He looks at himself and sees that he’s glowing just like the orb now! “Oh fuck this is bad!” He shouts but just as quickly as it started it stops. The wind in the room dies down and the glow around his body does too. “WHAT THE HELL WAS THAT!!!” Stiles quickly checks himself out, patting himself down and making sure he’s intact, quickly discovering that he is indeed fine, far as he can tell.

“Alright that is the last time I read a spell out loud…probably” Stiles sits back down and goes back to looking at the spell book, but quickly notices that the last few spell pages he had read, with the secret spell are now blank, the secret spell and symbol had disappeared. Stiles lets out a heavy sigh and looks around, seeing the mess of scattered papers throughout the loft. “Well, I HAD kept the place clean…but no I just HAD to read the spell. Alright let’s pickup the place and hopefully nothing else happens and Derek won’t have to know what I did.”

Stiles shakes his head before quickly getting to work at picking up the mess throughout the loft. He kept scolding himself and how he should’ve known better but he also knew there was a reason Derek called him a fox. He had a knack for mischief and getting into trouble one way or another. After a few minutes Stiles had all of the papers picked up and anything else the wind had blown out of place. Going back to the desk Stiles plops the papers down and then himself into the chair. Licking his lips while noticing the thirst he’s developed as he looks towards the kitchen and thinks about getting a drink.

As Stiles goes to stand, he suddenly notices a glass of soda on his desk. “That’s weird I don’t remember that being there before? I guess I left it out last night, great it’s going to be flat!” Grabbing the glass before taking a sip he is surprised to find that it tastes perfect, shrugging as he keeps sipping on it before looking at the open book on the desk. Shrugging as he starts flipping through the pages again, making sure to suppress any urges to read anything out loud.

After a few more minutes he soon feels a bit peckish and thinks about getting some chips to eat. He blinks and suddenly there’s a bag of chips on the desk. Stiles quickly jumps out of his seat knocking it over in the process. Blinking several times as if it might disappear, looking at the bag of chips on the desk, he slowly moves and picks his chair up. “Alright what is going on here, it seems like whenever I think of something it happens, I need to test this out.”

He has so many thoughts race through his head, but he focuses on one while noticing the almost empty glass on the desk. “I want the glass to refill.” Stiles watches the glass as sure enough it starts to refill. Stiles’ jaw drops as the glass finishes refilling and he grabs it taking a sip to test it. Yet again the soda was perfect bubbly and flavorful, just like it had come from a bottle. Stiles thinks of another way to test his new power. Stiles smiles broadly before saying his next thought. “I want there to be ten grand in my bank account!”

Stiles waits a moment before he whips out his phone and looks at his bank account. Upon seeing the amount his jaw drops, and in his excitement, he trips over his feet and falls back onto his butt. “No fucking way alright let’s see how far this power goes?” He thinks for a moment, putting his phone down on the desk, and decides to do something simple to change his physical appearance. “Alright how about this I want bright red hair” Stiles doesn’t feel anything, so he stands and walks over to the full-length mirror in the bedroom, gasping when he sees his reflection with bright red hair. He runs his fingers through his hair not believing it to be real before tugging on it. “Ow, ok so it is real, I want my normal colored hair back.” Stiles watches as he sees the bright red in his hair dim in color until it returns to his normal brown.

Stiles keeps looking at his reflection and wonders what all he can do as he thinks about the spell. “Wait it said the power to bend reality, it was being literal I can bend reality as I see fit. I can do ANYTHING!” Stiles starts pacing and bouncing with joy at the revelation before calming down and questioning his train of thought. “Wait I can do anything…no there’s no way that’s true. That level of power only exists in fantasy…says the person with a werewolf for a boyfriend and best friend. Among so many other things that are considered fantasy, Stiles focus!” Stiles snaps his fingers in front of him to help him focus.

“Alright let’s see if I really can do anything. What should I do first?” Stiles thinks for a few moments, and he recalls several of his more extreme kinks before focusing on one, feeling his cock throb and harden a bit. “Let’s see what this power can do! I wish my dick and balls would double in size.” Stiles watches his bulge in his pants and sees it throb and feels his cock head rub against his briefs. At first, he brushes it off as him just getting hard due to his excitement but soon he shifts a bit as his balls start to feel heavier. He keeps watching and his eyes open wide as he sees that his bulge is swelling out and growing larger before his eyes.

Stiles keeps watching as his bulge swells and pushes against his briefs and pants, making both grow tighter. He feels his cock head rub against his thigh as it grows longer and thicker. Growing towards his hip as it fills its tight confines. Reaching down groping it through his pants he feels his briefs shift a bit and his cock head slips out of them, brushing against his pants. The new sensation makes his knees buckle a bit, but he catches himself. Smiling as he undoes his pants button, he quickly feels it come undone and the zipper is pushed down as his massive new bulge forces itself out.

Stiles sees his briefs are struggling to contain his new size, his cock is filling up the area around his waist and his balls are overfilling the pouch. Slipping off his pants from around his crotch he’s able to take in the size of his new endowment. His cock is indeed so big now that the head and several inches bellow it are sticking out of the top of the briefs, making his cock head rub against his waist. Reaching bellow, he fondles his hefty new balls, each the size of an apple and one of them manages to slip out of the ill-fitting briefs.

Stiles bounces as he sees and feels his new endowment, of course giving his cock all this attention makes it start to harden even further as it rises and rubs against his pubes and lower abs. Moaning while watching his dick plump and fill with blood until he now has a sixteen-inch dick, sticking out of the top of his briefs and a hefty set of balls to go with it. Stiles looks at himself before laughing as he realizes the power he now has. Stiles has always fantasized about being able to alter how guys looked physically, now he has that kind of power…at least it would seem so. Stiles’ thoughts start really buzzing as he thinks of all the possibilities and things, he could do with his newfound power.

First though he needs to test it on himself and see how far he can take it. Looking at himself in the mirror while thinking of what to do he comes up with an answer. Stiles smiles broadly before thinking about himself becoming taller, just half a foot to start. It takes a moment, but soon he notices that his viewpoint is rising. Looking down and seeing the cuff of his pants lifting up his legs, revealing his socks and then skin as the cuffs stop mid-calf now. Looking down he sees his torso stretch longer, making his shirt ride up until the hem sits just below his abs. Lifting his arms up before him and seeing them stretch just a bit longer and seeing his palms and then fingers do them same. He flexes his fingers and then his arms enjoying the added size, no it’s not much but it’s different that’s for sure.

Stiles looks at his taller but still lanky frame in the mirror, a new idea forming. “Alright how about some muscle to fill this lanky frame out.” The ability quickly obeys, the growth starting with his chest his shirt tightening around it. Looking down to see his slim chest swell and push against his shirt he smiles broadly. As he reaches up to feel his pecs his arms catch his attention as his biceps swell with size and then his forearms thicken as well. Looking in the mirror Stiles whistles while admiring his muscular torso in the reflection. While admiring his reflection he sees abs start to fill out the lower portion of his shirt. Lifting his shirt and watching his abs become more defined as he gets a very noticeable six pack. Looking down at himself again he licks his lips and touches his abs, having to touch them to believe they are real. As he touches them, he sees his slim V-line thicken up and push out a bit. “Holy shit it really worked! I’m a fucking hunk now!”

As Stiles is admiring his muscular torso in the mirror, he feels his pants tighten even more around his legs. Looking down he sees his thighs now swelling as they start to grow thicker with muscle too. Wincing a bit as his pants get a bit too tight before the seams along the side of his thighs stretch to their limit and slowly rip open. Flexing his legs, the rips grow larger along the side of his thighs. “Oh man that feels better, damn my legs are twice their old size! This power is AWESOME!” Looking down again he flexes his legs and hears his pants audibly strain a bit.

Soon Stiles notices his shirt has become extremely tight around his neck, shoulders, arms, well really his whole torso. Looking at his reflection he drools at the sight before him. He can hardly recognize himself and if he couldn’t touch the muscles in his reflection, he wouldn’t believe it. Stiles smiles as he flexes his arms and hears a satisfying rip as his sleeves rip around his massive biceps. He starts flexing his chest and notices that his shirt is so tight now that he can see his nipples as they practically poke through the shirt. Stiles flexes his chest again, smiling while feeling the fabric start to rip across his chest. Stiles sees a small tear along his chest and grabs it before putting his fingers into the hole and pulling it apart, shredding the shirt easily in his hands.

After shredding his shirt, the sound of more fabric ripping fills the air. Looking down he sees that his legs are literally bursting out of his pants now. The legs of them have completely shredded open, all that remains of them is the bit around his waist and ass. He smirks before reaching around his waist and ripping his pants off, finally leaving him in his ill-fitting briefs. That doesn’t last long as he feels them tighten around him even more, pops of the elastic and ripping of fabric filling the air as his growing body rips the briefs to ribbons that quickly fall to the ground.

“Oh, fuck yeah I am so fucking sexy!!” Stiles looks at his reflection and flexes admiring his new muscular body. “I want more…give me more!! I want to be even bigger!!” Stiles lets out a groan as his muscles tense and start to swell again before his eyes. He looks at his reflection and smiles as he gets an idea while looking at the wall behind the mirror “I want that wall to turn into a giant mirror” Stiles keeps looking at the wall behind the mirror as it shimmers, and a strange silver colored liquid passes over it.

A few moments pass and the liquid quickly covers the wall in front of him before solidifying and becoming a large mirror. Stiles whistles while enjoying the better view of his full reflection. The very bottom of the mirror is obscured by some furniture and Stiles smirks. “Let’s clear my view, shall we? Want to be able to take in all of this gorgeousness!” The dressers and full-length mirror all disappear, leaving Stiles with an unobstructed view. He smirks and goes back to admiring his bigger muscles.

Stiles keeps flexing, watching as his muscles keep growing, making him look like a junior bodybuilder. Eventually he notices that the room around him seems to be getting smaller too. Looking up at his reflection he watches for a moment and notices that he’s getting taller too. His cock throbs as he realizes that he’s not only getting bigger with muscles but he’s also growing taller too. “Huh…guess saying bigger applied to everything not just my muscles. I have no problem with that at all!” He feels his cock throb eager for attention and filled with excitement at him living out a long held sexual fantasy.

Stiles finally gives in to his urges and starts stroking his cock feeling it quickly respond and rise to full attention. Stiles notices that as he strokes his cock, it surges larger in his hand and with it his level of pleasure. Stiles keeps stroking and soon notices that one hand isn’t providing enough coverage, so he starts using his other as well. He wraps both of his hands around his cock and starts stroking and soon he’s thrusting his hips. As he’s thrusting and moaning lost in pleasure he doesn’t slow down until he throws his head back and feels the top of his head brush something. Looking over his shoulder he sees that his head had brushed against the beam that runs from the column he was standing by to the wall of the room.

Stiles stops thrusting and opens his eyes and gasps. “Wait that beam is eight feet up, fuck I’m big and still growing!” Looking away from the beam and back to the mirror he’s amazed and so turned on by the sight before him that he almost busts his load right then. He sees an absolute hulk of a man in the mirror before him. He flexes his muscles and sees all the veins pop along his body as his muscles surge in size. As he keeps flexing, he soon feels his back brush against the same beam his head had earlier. “HOLY FUCK IM HUGE!” He keeps flexing and admiring his size and when he begins to fill the wall mirror he figures he’s big enough.

“Alright this is big enough, now to enjoy my size, well finish enjoying it anyway.” Slowly Stiles works on sitting down, using the column behind him to help him down slowly so he doesn’t damage anything. Once seated he gets back to using both hands to stroke his cock. After a few moments he feels something a bit wet against the ground where the back of his knees are. Looking down he notices that his cock is leaking pre like a fountain and what he felt is the puddle of pre-cum that has accumulated on the floor under the tip of his dick. He smiles and wraps his hands tighter around his cock, making a makeshift hole, before thrusting and grunting into it. Stiles watches in the mirror as he fucks his hands and moans as his climax builds and winds himself up by thinking about what he can do with his power on himself and hopefully others.

Especially Derek, Stiles thinking about Derek finally sends him over the edge as it usually does. Feeling his balls tighten before letting out a deep moan as he finally climaxes. Stiles feels the most intense climax he ever had and the load with it is the largest he ever had as well. He covers the new mirror wall in his load and keeps going until it starts to cover the floor in front of his feet until his climax finally dies down and he’s left there sweaty, panting. Letting go of his cock it bounces against his chest, covering it in a bit of cum. He looks at the mess in the room and on him and smiles. “Fuck that was awesome! Alright power don’t fail me now, clean up my mess.”

Stiles watches smiling as all of the cum from the mirror vanish like it was never there. Then he sees the puddle on the ground start to shrink and dry up as it goes away. Finally, the bit on his chest disappears as well, the sticky feeling from it vanishing and he sees the bit on his cock head disappear last, leaving everything perfectly clean from his fun. Now sitting there panting, he leans his head back and closes his eyes for a moment, letting his excitement slowly fade.

Once Stiles finally gets past his afterglow, he looks at himself in the mirror and winks, “Well hello you massive stud!” Stiles bounces his pecs, enjoying the weight and size of them before flexing his massive arms. He leaves his right arm flexed and feels up the massive bicep and forearm with his left hand. Soon he switches and does the same with his right arm, feeling his cock twitch and throb as he turns himself on again admiring his muscles. He continues admiring his physique but slowly stops when he notices he’s getting hard again. “Alright that’s enough of this for now. Won’t be the last time though!” Stiles looks at his reflection and winks before exhaling slowly.

“Well goodbye for now but I’ll definitely see you later.” Stiles thinks about returning to his normal self. He watches in the mirror as it looks like he’s a big balloon that is deflating as he loses his height, muscles, and his new endowment. Watching his muscles and size deflate while his cock retract into him. Stiles slowly stands and walks over to the mirror watching as he quickly returns to his old height before letting out a sigh as he flexes his arms and slowly watches his much smaller but still large biceps disappear. His pecs soon deflate and for the final part he watches his dick and balls return to their old size.

“Well, hello old me, at least it’s not permanent I can slowly get my bigger body back. Though that giant size will be just for fun. Don’t need people freaking out at a giant walking around” Stiles keeps looking at himself in the mirror before turning and looking at his butt in the mirror. “I guess some small improvements wouldn’t hurt?” Smirking while shaking his head before thinking about his butt filling out. Stiles smiles as he watches his small round butt fill out until it becomes a juicy bubble butt. Doing a few bounces to really admire it and then reaches back and gropes his newest asset, smiling as he does. He then turns back around and decides to buff himself up a bit. Watching as his body fills out with some muscle, not a lot but enough for it to be noticeable when his friends and Derek see him.

“Alright that will definitely work for now anyway, let’s see if Scott is back so I can go visit him and I can continue my experiment to see if my power works on others?” Stiles grabs his phone from beside the spell book before shooting Scott a message seeing if he's back from the pack trip. Hopefully Scott didn’t stay behind like Derek, although if he did Stiles could change it so Scott would be home. He was oh so eager to test his power and reveal it to his best friend!

Before Stiles can think on it too long his phone quickly chimes. “Yeah, I got back early this morning. Derek said he still had some things to take care of, but he’ll be back later. Want to come hang for a bit?” Stiles quickly responds. “Yeah, I’ll be over soon, and Derek told me about hanging back a bit but thanks for making sure I knew.” As he thinks of the possibilities of fun he can have with Scott, he feels his dick twitch a bit while smiling. Looking down at he sees the tatters of his clothes are gone. As he wonders where they went, he sees the outfit he’d hulked out of laying on the bed completely fixed.

“Alright I guess the command to clean up my mess cleaned up all of it. That’s pretty handy!” Stiles smiles before shrugging and getting dressed, noticing that the briefs fit a bit tight around his bigger ass. His shirt also hugs his chest and arms a bit but decides to leave them be, why not show off his larger frame? Looking up he admires his form in the mirror before noticing that he needs to return the wall and furniture to normal. Sure, enough as he thinks a bit about it the wall shimmers and the large, mirrored surface disappears as the dressers and full-length mirror reappear. Looking around to make sure the loft is back to normal he nods and turns towards the door. His head filled with all the fun possibilities of his new powers and how he can’t wait to show Scott, after a bit of fun!

Chapter Text

Stiles quickly arrives at Scott’s apartment and smiles at seeing his motorcycle parked there. Stiles knocks on the door and after a moment Scott finally opens it and smiles at Stiles before pulling him into a hug. “Hey dude it’s been way too long.” They hold the hug, Scott squeezing Stiles a bit before Scott breaks the hug. Stiles finally notices that Scott felt bigger when he hugged him, and he takes the moment to check him out. It had been four months since they’d seen each other, and Scott had apparently been taking lessons from Derek in how to be a sexy werewolf. Scott was wearing a tank top that hugged his muscular chest and showed off his thicker arms and shoulders too. Stiles kept looking at Scott before noticing that his abs are now visibly faintly through his shirt. Looking down at Scott’s legs Stiles notices that his legs look like they belong on a Greek statue.

Stiles finally looks up and notices that while he was checking out Scott's bigger bod, he had missed the short beard that Scott had also grown and how it really made him look more rugged and wild. “Damn Scott have you been taking lessons from Derek! Dude, I know it’s been a few months but there is no way you got this ripped from that trip. Did you get into some kind of bodybuilding competition instead?” Stiles punches Scott’s chest and Scott smiles flexing a bit for Stiles. “Thanks, man I take it you like what you see?” Stiles smiles while stepping into Scott’s place and grabbing his arm and giving it a slight squeeze as he enters. “I do but I always have, you know that!” Stiles winks at Scott while stepping in.

Scott closes the door and lets out a whistle. “That I do but I can see I’m not the only one who put on some muscle. I don’t remember your ass looking so big before we went on the trip!” Scott quickly reaches forward and smacks Stiles’ ass playfully, making him jump a bit. “HEY! No damaging the goods, Derek would kill you if you did.” Stiles turns towards Scott scowling at him. “Psshh…you know you enjoyed it; I know what you like.” Scott smirks at Stiles while watching him head to the couch.

Stiles quickly flops onto the couch, rolling his eyes while ignoring Scott’s comment. Scott steps into the kitchen, chuckling softly. “Want anything to drink?” He asks while Stiles picks up the Xbox controller and starts looking for a game for him and Scott to play. “Yeah, I’ll take a beer if you’ve got any?” Stiles responds before Scott responds from the kitchen “I do indeed, I swung by the gas station once I got back in town and grabbed some. I know I can’t get drunk, but I have grown to enjoy the flavor.” Scott walks back into the living room and passes Stiles a beer bottle before grabbing a spot on the couch next to him before quickly twisting the bottle cap off. Stiles goes to twist the cap just like Scott only to have nothing happen.

He tries again and still nothing softly groaning a bit while struggling before hearing Scott chuckle. “You having trouble with your cap there?” Stiles glares at Scott and then looks at the cap. “Yeah Scott this isn’t a twist cap.” Stiles shows Scott the bottle cap as he takes a sip before a smile breaks across his lips. “Sorry I guess I’m so used to my werewolf strength that a beer not having a twist cap has never stopped me from turning it into one.” Scott grabs the cap and twists it off and Stiles watches as the muscles in Scott’s arms barely flex and then there’s a hiss as the cap is twisted off.

Stiles rolls his eyes while scowling at Scott “Oh please you just wanted a reason to show of your muscles in front of me again.” Scott just shrugs and winks at Stiles “That might be true, don’t act like you minded.” Scott smirks at Stiles before patting his back. They both sit back and start gaming and soon get into trash talking and laughing as they play. The gaming, trash talking carries on for a couple of hours and Stiles starts to get hungry as they get to a stopping point. “Hey Scott, what do you have to eat around here?” Stiles asks Scott before seeing him grin a bit sheepishly. “Well, I don’t actually, I just got the beer and figured I’d worry about food later, how about I order some pizza and wings; it’ll be my treat.” Scott grabs his phone and makes the order quickly already knowing what Stiles likes.

“Alright pizza and everything else will be here in about forty minutes.”. Scott nods while smiling at Stiles. Stiles smiles while thinking about testing out his new power on Scott. Stiles quickly thinks about Scott being unaware of any physical changes that he undergoes until Stiles wants him to notice. “Well since we know that food is gonna be here soon let’s keep playing till then, after all I’ve got to kick your butt at least once more.” Scott quickly picks his controller back up and smiles at Stiles with his eyebrows raised. “Oh yeah you really think you can beat me, well let’s see whose gonna come out on top.”

Scott and Stiles play several more rounds and right as Scott wins the last round there’s a knock on the door. Scott jumps up to answer it. “Hope that’s the food, I’m starving!” Scott opens the door and standing there is a young guy, looks about college age, who smiles at him as Scott opens the door. “Hello sir, I’ve got your order here from pizza express.” Scott motions for the guy to come in. “Cool, hey come on in and put the order on the counter I’ll grab your payment.” The guy walks in and Stiles notices his nametag says Ashton. Ashton is average height and build and he’s in jeans and a polo shirt. Stiles smiles as he watches Ashton unload the order onto the counter and decides to have some fun.

Thinking to himself Stiles smiles while looking at Ashton. “I want him to not notice anything I’m about to do to him. Alright Ashton let’s have some fun!” First, Stiles thinks about Ashton getting a bit taller, watching his body stretch longer till he’s 6’2”. Next Stiles notices how lanky Ashton is now and thinks about making Ashton’s muscles fill out his uniform. Watching his shirt quickly tighten around his larger arms, broader shoulders, powerful chest, and finally his butt fills out his jeans. When Ashton finishes unloading the bag, Stiles sees his bulge and decides to help him out a bit. Suddenly Ashton’s bulge starts to grow, filling the crotch of his jeans up till it makes a pretty impressive bulge. Stiles thinks about Ashton’s growth stopping as Scott steps out into the living room. He stops for a moment starring at Ashton but soon catches himself before walking over and paying him.

Ashton smiles at both of them and heads out the door giving Stiles one last look at the hunk that he had just made. Bye Ashton, enjoy your new bod, he will notice his new bod while walking to his car. Scott turns looking puzzled at Stiles “Was it just me or was Ashton way better looking leaving here then when he arrived.” Stiles just stares at Scott with confusion. “Seriously, sometimes I wonder if you heightened sense really work, he left the same way he came. Though since you mentioned it, I have to admit that he was a seriously good-looking guy.” Stiles shrugs while getting up and heading over to the kitchen.

While Scott grabs plates and utensils Stiles eyes are drawn to his ass that is so big now his shorts look like they can barely contain it. Scott turns and chuckles when noticing that Stiles is drooling. “Hey dude my eyes are up here" Stiles quickly blinks rubbing his eyes “Sorry I got something in my eyes" Scott just chuckles while passing Stiles his plate “Uh huh sure, you know I don’t mind, I mean it’s not the first time you’ve drooled over my ass and probably not the last.” Scott winks at Stiles and then smirks mischievously. “I have to say though if you’re drooling that much over me, just wait till you see Derek!” Scott winks at Stiles again as he groans.

“You know it's not nice to tease a guy whose been without his boyfriend for four months by mentioning how much better he looks. Especially since he’s teased me too and hasn’t sent any pics to let me see how he looks.” Stiles scowls at Scott before grabbing a spot on the couch and sitting sideways with his back against the armrest. Once Scott sits down Stiles puts his feet in Scott's lap. Scott just rolls his eyes as he adjusts his position to fit Stiles’ feet in his lap comfortably. They both start eating and Scott turns on a movie to watch while they eat. As the movie begins Stiles takes a bite of pizza while looking at Scott and thinking of what to do to him first.

“Well, he probably wouldn’t say no to a bigger dick and balls.” Stiles thinks to himself and soon after feels something push against his ankle. Stiles takes a bite and looks in Scott’s direction and sees what looks like a balloon inflating in Scott’s shorts. Watching for another moment Stiles can see the very clear impression of Scott’s balls pressing against his shorts. “Damn that’s hot…fucking hell! His growth will stop when his balls are baseball sized and his cock is fourteen inches, soft.” Stiles feels Scott’s bulge press against his foot a bit more before it finally stops growing. Licking his lips before looking up at Scott and noticing he’s almost finished clearing off his plate. “Damn dude, did you not eat today or did your appetite grow along with your muscles?” Stiles shakes his head from side to side as Scott looks at him and smiles his mouth full of food before quickly swallowing it down. “Well, I ate a bit earlier, but I haven’t eaten since I worked out today so I’m a bit famished.”

“Well that wasn’t very smart was it?” Stiles rolls his eyes and takes a few more bites of food, enjoying the pizza as Scott scoffs. “Yeah…yeah, now will you let me eat my pizza in peace.” Scott takes a big bit of pizza throwing his head around and growling playfully, before winking at Stiles. Stiles chuckles and looks towards Scott, noticing that his plate is almost empty. “Hey buddy would you like me to get you some more?” Scott looks at Stiles and then his plate before nodding. “Thanks, appreciate it!” Scott smiles as Stiles grabs his plate before heading into the kitchen. Stiles looks at Scott while pilling his plate up with food, grabbing some more beers. He heads back to Scott and passes him the food and beers. “Here this should help fill your tank.” Scott smiles at him and nods before opening himself another beer as Stiles grabs his spot on the couch and he notices the unobstructed bulge in Scott’s shorts and fells himself get turned on a bit.

Stiles quickly make a wish that Scott won’t be able to smell how aroused he’s getting till he decides to let him. Stiles looks at Scott and gets an idea while watching how fast and how messy Scott is eating, a bit piggy really. Since he’s eating like a pig, why not make his physique softer as well. I want Scott to get fatter as he eats, any calories he consumes will be quintupled, also burping and being slobby like a pig will increase his weight, and I want his werewolf metabolism gone as well. Stiles smiles before taking another bite of pizza and watches Scott eagerly stuff his face. As Scott swallows the mouthful of food, he grabs his beer to wash it down. Stiles watches as Scott takes several sips of his beer and soon notices that his abs suddenly press against his shirt. Blinking Stiles watches as Scott’s abs quickly soften up and turn into a small belly that’s now pressing against his shirt.

Stiles keeps discreetly watching as Scott eats and his chest and arms also start to get softer the more, he eats. Stiles feels himself get turned on as he watches Scott’s body thicken up with a layer of pudge. That’s nice but I want it to speed up a bit, I want Scott to gain 2 pounds every ten seconds. As Stiles thinks that he watches Scott swallow, his belly pushes out a good amount this time and with Scott’s next bite he gets the beginning of a double chin. Stiles notices that Scott’s plate is almost empty now and he watches Scott stuff the last of a slice of pizza into his mouth. Swallowing it down quickly furthers his growth and his belly rounds out into a very solid pot belly.

“Hey Stiles, can you move your feet, I need to get some more food.” Scott asks, snapping Stiles’ attention away from admiring the weight Scott has put on. Stiles nods and moves his feet letting Scott get up. As Scott stands and stretches, he gives Stiles a really good view of his weight gain as his shirt rides up a bit, showing off the bottom of his belly and his lower happy trail. Scott pulls his shirt down before stepping into the kitchen, Stiles looks away from Scott’s belly to see how much thicker his legs have gotten but most noticeably his ass. Scott always had a great ass but now it jiggles like jello as he walks, and his shorts are riding up the crack a bit. Stiles turns to look like he’s watching the movie but he’s really watching Scott as he polishes off his beer and furthers his growth. Scott’s belly swells out further making his shirt tighten up even more before riding up a bit and exposing the slightest hint of skin without him stretching this time.

Scott walks back to the couch, his belly visibly jiggling with each step he takes. Stiles guesses that Scott has only gained thirty pounds, but he carries it well. As Stiles thinks of the weight Scott has put on his eyes open wide as Scott’s body rapidly fattens up, making his shirt even tighter across his chest and belly. Oh, shit I guess it wasn’t thirty pounds, well it is now, let’s make it an even forty. As Scott sits and gets settled his newest gain causes his shirt to no longer cover the very bottom of his belly. Once he’s settled Stiles shifts and puts his feet back in Scott’s lap, noticing how the lower part of Scott’s treasure trail is on display now and with it the beautiful tan roundness of his lower belly.

Scott keeps eating and drinking his beer and the pounds quickly stack on becoming more and more apparent the softer he gets. Scott at one point let’s out a loud belch and Stiles watches Scott’s belly fill out his shirt even more before noticing that his belly is so large now that his shirt doesn’t even cover his belly button anymore. Stiles scoffs while looking at Scott. “Damn dude!! That belch was weak…I know you can do better.” Stiles winks at Scott before taking a large sip of beer and letting out a belch louder and longer then Scott’s. “Now that’s a belch.” He smiles and winks at Scott. Scott scoffs and quickly chugs his beer down and Stiles feels Scott’s thighs thicken up under his feet. Then as Scott keeps chugging his belly rounds out and presses against Stiles’ feet. As Stiles keeps looking at Scott, he can’t help but notice that even with how much fat Scott has gained he just looks beefy now, his muscles still filling his frame out nicely.

“Alright Stiles, you ready to hear a real burp?” Scott smirks at Stiles before shrugging and rolling his eyes as his stomach gurgles loudly and thumping his chest. With the thump Scott opens his mouth and lets out a loud and long burp. Stiles feels himself get even more turned-on watching the burp effect Scott, rapidly adding on the pounds. Scott’s slight double chin become more pronounced, along with his arms getting thicker, and his pecs soften up becoming the very early start to moobs. Stiles notices that Scott’s thighs fill out the legs of his shorts as the fabric pulls tighter under his legs, even hearing the fabric creak a bit, threatening to rip. The final part of the change due to the burp that Stiles notices is that Scott’s belly swells out like a large water balloon. It jiggles and bounces a bit as it keeps swelling, pushing his shirt up over it to full expose his large hairy beer belly.

Stiles is drooling when he sees the larger belly and Scott’s delicious treasure trail that’s thickened up on it covering the entire area bellow his belly button now. Finally finishing the burp, he beams at Stiles. Stiles responds with a slow clap and takes the time to look over Scott and see how he looks more like an ex-jock now. “Damn Scott that was very impressive, I didn’t think you had that in you. Although I guess with your new tank I shouldn’t be surprised.” Stiles leans while reaching forward and rubs Scott’s belly winking at him. Scott just chuckles and rolls his eyes, “Yeah what tank dude I’m all muscle as you can currently tell since you’re rubbing my abs.” Stiles chuckles softly and thinks of Scott’s belly swelling up like he's got a constant flow of beer being poured into it. His belly gurgles loudly and pushes against Stiles’ hand as it quickly swells and rounds out even more. Stiles feels Scott’s belly start to roll over his feet and he enjoys the feeling of his feet being squished for a moment before shifting and moving them and sitting up to sit right next to Scott.

“Oh yeah all muscle, are you sure about that?” Stiles thinks about removing the part of the spell that keeps Scott’s changes hidden from him as Scott laughs loudly and rolls his eyes. “Yes dude I’m sure this is all mu…” Scott puts his hand on his belly and stops mid-sentence before looking down at the massive alien object he’s touching. Scott looks absolutely flabbergasted as he looks at his belly before using both of his hands to rub it. Stiles smiles while watching Scott rub his still growing belly, even pushing against it to see if it’s a trick. Stiles biting his lips when Scott’s hands visibly sink into his massive belly.

“WHAT THE FUCK!!!!!! HOW THE HELL…THIS WASN’T THERE BEFORE!!!!” Scott keeps rubbing and pushing against it even trying to flex and suck it in, but nothing works as his belly keeps expanding before his eyes. Stiles finally can’t hold back his laughter anymore and it bursts out of him like a dam breaking. Stiles starts laughing loudly and starts pointing at Scott and poking his belly, mocking him before he starts gasping for air and eventually accidentally falling off the couch.

Stiles’ laughter breaks Scott away from his swelling belly and he glares at him. He feels a hot flash of anger but then a moment of realization hits him. “Stiles what the fuck did you do?!” Scott growls out at Stiles, still rubbing his belly as it spills into his lap and pins him to the couch under its’ heft. After a few moments Stiles finally calms down and takes several deep breathes before standing and sitting on the couch next to Scott. “What makes you think I had anything to do with this?” Stiles starts rubbing Scott’s belly and marveling at how massive his belly is.

Stiles decides Scott’s growth can stop once his belly looks like he drank three kegs of beer. Yet again Scott’s belly swells up quickly at Stiles’ last thought. The large beer belly swells out before him, pushing his shirt all the way up to his chest, looking more like a training bra now. Scott groans loudly as his belly keeps rapidly swelling before finally stopping, he pants and rubs it before giving Stiles a very annoyed glance. “Why do I think you did this, well you are the only one that deals directly with spells and stuff. Also, this couldn’t be any sort of curse or anything from the trip, Derek made sure we stayed out of trouble. Really though how did you do this?” Scott looks at Stiles questioningly as Stiles rubs his belly. Stiles finally let’s out a soft chuckle followed by a sigh.

“Alright fine I did it, as to how, that’s the fun part.” Stiles says as Scott scoffs audibly at Stiles saying fun. “Fun…how exactly is this fun, my belly is huge and I’m fat?” Stiles just rolls his eyes and scowls at Scott. “Will you let me talk or do I need to make you bigger to encourage you to shut up?” Scott suddenly feels his shortens tighten even more around his thighs, hearing the fabric start to pop and threaten to rip apart. His chest also swells and pushes against his shirt, making it even more uncomfortable. “Oh fuck, no…no you’re good please just make it stop and tell me how you did it?” Scott shakes his head from side to side before feeling the tightening of his clothes stop.

“Well, I’d been looking for new spell books and stuff since I’d read all the ones at Derek’s and Deaton’s. While walking down main street I found myself drawn into a store. I looked around and found a really old spell book. Then had to wake up the old lady running the store…” Stiles rambles on excitedly, retelling all of the events and adding in other unnecessary details before finally taking a deep breath and saying. “…and to make a long story short.” Scott scoffs softly and retorts “Too Late” making Stiles scowl at him before continuing. “I found a spell that far as I can tell it lets me bend reality to my will.” Stiles shrugged his shoulders before smiling mischievously at Scott who was looking at him dumbfounded. “You found a spell that could make you bend reality to your will and the first thing you did with it was make ME FAT!”

Stiles chortled, “No I uh experimented on myself first.” Stiles blushed now a deep crimson filling his cheeks and he heard Scott chortle. “You experimented on yourself first. How big did you make your dick, a foot, two feet long?” He rolled his eyes while Stiles chuckled and thought about what Scott said Damn a two-foot cock, that would be hot. With that thought Stiles suddenly feels his cock and balls expand in his underwear, making him gasp as he feels his semi expand in his shorts. “What, what’s wron…. holy shit, dude are you getting hard right now?” Scott exclaims while looking at Stiles and then noticing his growing bulge, making his jaw drop as Stiles gropes himself, biting his lips and letting out a soft moan.

“Dude did you just give yourself a two-foot cock? Oh, come on that’s just excessive.” Scott rolls his eyes, but soon returns to them to the impressive bulge stretching down Stiles’ shorts as the head of his cock stops just above his knee. Stiles groans as he tries to adjust his new endowment in his all too tight underwear and pants now. Stiles thinks about his cock shrinking back down to a foot, letting out a sigh as he feels it retract letting his briefs and shorts loosen a bit. Stiles looks back up at Scott before giving him a playful smirk. “Well do you believe me now?” Scott just nods biting his lip as Stiles smirks at him.

“Well, is someone a bit turned on by this?” Stiles gropes his massive bulge; the motion eliciting a soft moan from Scott. “Well, I have missed our hangout sessions while we were gone, and something tells me you did to?” Stiles asks and Scott just nods and looks at Stiles with a bit of lust in his eyes. Stiles chuckles softly and leans up against Scott’s side and gives him a soft kiss before leaning in and starting to make out with him. They keep making out, Stiles rubbing Scott’s large belly before breaking the kiss and looking into his beautiful dark brown eyes. “Fuck I want you so bad right now!” Scott licks his lips, panting a bit with excitement.

Stiles winks at him and rubs his belly. “Well then I guess I should return you to normal so we can have some fun then.” Scott nods quickly as Stiles rubs his belly and as he does Scott notices that his belly is starting to feel lighter little by little. Stiles kisses him again and Scott returns it wrapping his arms around him and he can feel Stiles rubbing his belly as it quickly gets smaller and smaller. After a few moments Scott’s belly is mostly gone and Stiles starts rubbing his chest felling it tighten into his strong powerful pecs under his hands. Stiles quickly slides his hands over Scott’s arms, and they quickly slim down and return to their powerful and defined shape.

Stiles finally straddle Scott’s legs as he kisses him, feeling the rest of Scott’s soft body melt away before slowly slipping Scott’s shirt off. They break the kiss for a moment so Stiles can get Scott’s shirt off and then Scott helps him with his own and then they go back to kissing. Scott’s hands find their way to Stiles’ waist, and they just sit their holding onto Stiles. Stiles hands keep rubbing Scott’s chest kneading the muscles there and Stiles thinks about Scott’s pecs growing in his hands and quickly they respond, going from being a handful to overfilling his hands.

Scott moans into the kiss feeling Stiles knead his chest. Slowly Stiles hands slip off Scott’s chest and they rub down his abs until the come to rest on Scott’s muscular thighs under his own. Stiles rubs Scott’s thighs feeling the powerful muscles and marveling at how powerful his legs feel. “Damn Scott is there any part of you that isn’t thick and powerful muscle.” Scott chuckles as smiles at Stiles before flexing his arms. “Not as far as I know. Damn those shorts look tight, let’s take them off.” Scott reaches down and undoes the button on Stiles shorts, and quickly slides them down, Stiles shifts a bit to let Scott get his shorts down around his thighs. As Stiles settles back down in Scott’s lap Scott lets out an audible gasp when he sees Stiles’ cock in his overstuffed briefs. “Like what you see?” Stiles winks at Scott while smiling mischievously “You tell me?” Scott palms his bulge, his eyes opening wide when he notices his larger cock and balls but quickly looking back to Stiles. “Don’t know when you did this but thank you!” Scott gropes his bulge making Stiles moan softly while looking at the bulge and then up into Scott’s eyes. “Fuck Scott those shorts look tight.” Scott nods slowly licking his lips as he looks at Stiles “Well then, I guess I should help them off of you then?” Stiles winks at Scott but makes no move to take them off.

Scott stares at Stiles trying to figure out what he’s up to when suddenly Scott fells his underwear and shorts get even tighter. At first, he thinks he’s just get more turned on as he looks at Stiles. Soon though Scott finally looks down and gasps at seeing his large bulge is growing in his shorts. Scott rolls his head back as his tightening clothing rubs against his cock as it grows. “Fuck Stiles will you please take my shorts off they are surprisingly durable, and I’ll have to be huge for them to rip off.” Stiles just chuckles while rubbing Scott’s chest. “Aww the poor puppy however will you manage.”

Scott scowls at him but Stiles pulls him into another kiss and soon Scott feels a different kind of tightness around his bulge, and he can feel his bare ass on the couch. Scott gently breaks the kiss and looks down to discover why the different sensation around his bulge and ass. Scott is now wearing a jock strap, a very overstuffed one at that, his balls are threatening to spill out. He looks up at Stiles and notices that he is now nude and stroking his own cock and Scott just smirks. “A jock strap really?” Stiles shrugs and rubs his hands along the inner part of Scott’s thighs. “Well, you always did look good in one and the thought came to mind and now here you are.” Stiles winks at Scott before rubbing his bulge in the pouch as it keeps growing.

Scott just blushes and then let’s out a soft moan as his bulge fills out the jock even more and hears the fabric start to audibly strain. Stiles decides that Scott is big enough and stops his growth, reaching down to grope Scott’s overstuffed pouch. “Fuck Stiles if you keep that up you had better be ready to finish what you’re starting.” Scott says gruffly looking at Stiles, who gives him a playful and familiar smirk. “Oh, dear I’ve gotten the big bad puppy all turned on. Well bad news you can’t have my ass right now, I’m saving that for Derek later. Would you be ok with mutual hand jobs?” Stiles rubs Scott’s bulge again and Scott starts panting before letting out a soft growl as his ears start to shift and grow longer into points and his sideburns thicken and come in spreading down his face as he shifts.

When Scott looks at Stiles again his mouth is open as he pants, showing off his now pointed teeth, running his tongue over them to tease Stiles. “As long as you don’t leave me hanging, I’m good with whatever. I honestly can’t remember the last time I was so turned on? I mean you made me fucking shift!” Scott licks his lips showing off his pointed teeth. Stiles smiles and pulls Scott into a kiss before snapping his fingers. Scott moans as his cock bounces freely into the air and then slaps against his abs. Stiles smiles into the kiss and reaches down, wrapping his hand around Scott’s cock before starting to stroke him slowly, teasingly.

Scott growls into the kiss and pushes his tongue into Stiles’ mouth causing Stiles to smile before suddenly shuddering and moaning as Scott grabs his cock and mimics his motion and speed. Stiles breaks the kiss before rolling his head back, taking a moment to enjoy his pleasure. When he looks at Scott again, he notices that he’s unshifted and now he’s just focused on stroking Stiles’ cock as Stiles strokes his. Both men sit there stroking the sounds and smells of sex filling the air. Stiles looks down at Scott and marvels at how amazing Scott looks. Yeah, this wasn’t the first time they had done this or even more, but Stiles just sat there gazing at how gorgeous his best friend was while straddling his thighs and jacking him off.

Stiles notices the rise and fall of Scott’s beefy pecs as he pants, his sweat dripping down and making its way through the bit of chest hair Scott had, mainly in between his pecs. He watched the sweat trickle down slowly over the cobblestones that were his best friends abs. Finally, the sweat passed his abs and it dived straight into his pubic hair. Stiles watches this happen again and again getting lost in following it until one of the times that he looks up he sees Scott smiling and Stiles blushes. “I would ask if you were enjoying the view but considering the strong pheromones that were coming from you as you watched I already know the answer.” Scott just smiles and he playfully licks the end of Stiles’ nose. “You ready to help this pup finish?” Scott winks at him and he speeds up his stroking causing Stiles to do the same as he nods and rolls his head back a bit.

The sound of panting and moaning fills the air more rapidly now as both of them get closer and closer to finishing. Scott’s panting gets even faster, and he digs his fingers into the couch and there’s the faint sound of fabric ripping as Scott’s claws come out and dig into the couch. Stiles and Scott both look at each other and then Stiles looks at the hunk under him and finally feels his climax hit. He shoots his load onto Scott’s chest and a bit of his abs but soon behind him Scott climaxes and covers Stiles’ abs and himself. They both keep stroking each slowly other until their climaxes subside and Stiles is the first to let go and Scott follows soon after both of them still panting.

“Fuck Stiles…. that was…fun!” Scott pants out as Stiles stands, nodding before plopping down onto the couch next to him. “That’s one way to describe it!” Stiles just smiles while sitting there still trying to collect himself. He then sees some of Scott’s load on his hand and he winks at Scott before licking it off. “Damn you taste good.” Scott just blushes and does the same with his own hand and Stiles’ load. “You do too, well I should get a towel to get us cleaned up. “Scott starts to stand, and Stiles stops him. “Nah towels won’t be necessary.” Stiles thinks about it and soon the slightly uncomfortable sensation of drying cum is gone as if by magic…man he seriously loved this power!

Scott just whistles while rubbing his abs and then smiles at Stiles. “Damn that new power of yours is handy as fuck. How does it work you just think it and it happens or you have to do something else?” Stiles looks at Scott and smiles. “Well, I just have to think about the thing happening and it does. For example, when you mentioned me giving myself a two-foot dick. Well, I thought about it, and it happened. Which has led to some issues and will make it hard to surprise Derek with it, I need to change it a bit? Wait I know!” Stiles closes his eyes for a moment and when he opens them, he smiles at Scott. “Well, what did you do?” Scott asks as crosses his arms looking at Stiles. “I’ve altered the power a bit, made it to where I have to put a bit of willpower into the thought or some sort of physical motion, like snapping. Like this, I want both of our cocks and balls to return to their normal size.” Stiles snaps his fingers and Scott looks at him and watches as his cock and balls rapidly shrink down, returning to their normal size. Then Scott looks down at himself and sees his own cock and balls shrink down. Stopping once his balls are back to their normal size of large eggs and his cock its’ normal eight inches, pouting just a little at the loss of size.

Stiles chuckles at seeing Scott pouting before snapping and watching Scott bites his lips as he watches his cock stretch out longer and thicker until it’s a foot long and five inches around soft with a set of tennis ball sized balls to match. “How’s that Scott.” Scott smiles at Stiles while tugging on his cock to enjoy his new size. “I approve, well now that we’ve had our fun. Where are you off to next?” Scott asks before walking to his bedroom and slipping on a pair of boxer briefs, adjusting the pouch around his larger bulge before stepping back into the living room. Stiles enjoys the sight of Scott in his underwear for a moment before snapping his fingers, making his clothes reappear on his own body. “Well, I was thinking I’d head back home, chill there till Derek gets home, really hope it’s soon?”

As if on cue Stiles’ phone chimes and he pulls it out of his pocket and smiles as he sees a message from Derek. “Where’s my favorite little mischievous fox?” Stiles smiles while typing his response. “I’m on my way sour wolf, I was running some errands and visiting with Scott for a little bit, can’t wait to see you.” Stiles smiles at Scott. “Well, it’s time for me to go Derek is waiting on me. I’ll see you around.” He smiles as Scott pulls him into a hug and he returns it. “Yeah, that I don’t doubt, when are you gonna reveal your new power to Derek.” Scott asks before breaking the hug as Stiles shrugs and his phone chimes again. “I don’t know but I imagine it’ll be either tonight or tomorrow morning. For now, keep it a secret till I’ve had a chance to show it off to Derek and the rest of the pack. I’ll let you know once it’s out in the open” Scott nods affirmatively. “I won’t say anything.”

Stiles pulls the message up “Well I finished unpacking and then I took a nap that I just woke up from and I’m in need of your services.” Stiles sees another message come through and it’s a picture of Derek grabbing his rock-hard bulge in his boxers. Stiles nearly walks into the door cause he’s drooling over the picture. Scott rolls his eyes. “Watch where you’re walking and stop being so fucking horny.” Scott smack Stiles on the butt before he opens the door for him, and Stiles walks out rubbing his butt. “Oops hope I didn’t damage you; Derek would kill me if I damaged his bottom.” Scott says with a touch of sarcasm.

Stiles turns and scowls at Scott. “Bold of you to assume that I’m the bottom. Maybe I’m…” Scott gives him a look that says bullshit and smiles at Stiles making him blush “Dude, I’ve known you for how long one? And two there’s no way Derek would let you top all the time and I know how much of a thirsty bottom you are.” Scott grins as Stiles tries to compose himself. Stiles finally stops and grins at Scott. “That might be true but we both know I’m not the only one who likes getting fucked here. Especially when you’ve got such a large ass begging to be plowed.”

Stiles winks at Scott before snapping his fingers causing Scott to bite his lip before putting his hands behind him and feeling his butt swelling up in his hands. He turns and Stiles gets a great view as Scott’s butt fills up the pair of underwear he’s wearing, making them strain over Scott’s even bigger ass, he’d have to go clothes shopping very soon. “You fucking tease Stiles.” Scott growls before pulling Stiles in and kisses him again, breaking the kiss and smirking at Stiles. “There now you’ll smell and taste like me once you get to Derek, have fun with that.” Scott winks before quickly closing the door in front of Stiles who stands there not knowing how to feel. “Oh, you fucking ass of a wolf. Fuck! Well, this should be fun, wait I could just magic it away…. nah I wanna see how Derek reacts.” Stiles smiles as he walks quickly down the hall and out of Scott’s apartment building. He swings by a flower shop, and he grabs a dozen blue orchids for Derek before eagerly heading home.

Chapter Text

Stiles smiles as he gets closer to home, only stopping for a moment to look at himself in the window of a shop. Stiles admires his appearance, enjoying his bigger muscles. He turns and admires his ass in the window and then notices something that he hadn’t returned to normal earlier, his larger cock and balls. Stiles snaps and watches in the reflection as his large bulge rapidly deflates back to its’ normal size. Slightly bigger muscles and a bigger butt would be believable, but Stiles knew that a bigger cock and balls would giveaway his surprise. Stiles turns away from the window and quickly heads down the street. After another few blocks the loft comes into view and Stiles feels butterflies and excited again at knowing that Derek waits for him in the loft.

He picks up his pace before breaking into a slow jog to get there faster, quickly arriving at the door and waving his hand to open the door and stepping through and onto the elevator. Thankfully the elevator seems to fly up to his destination and Stiles whips open the door and steps off it before suddenly finding himself in a pair of hairy and powerful arms. More importantly though, he feels a pair of lips on his own and he immediately responds by kissing back and when Derek's tongue starts to push in Stiles lets it in before pushing back playfully. The kiss feels like it goes on forever but soon Stiles finds himself standing on his own two feet, blinking as he tries to collect himself. “I love how I can still do that to you. Aww you got me orchids, thanks babe!”

Derek grabs the orchids and Stiles bringing them both inside, carrying Stiles like a bride before putting him down and taking the flowers. Once Derek puts Stiles down, he walks into the dining area and grabs the vase off the dining table, dumps out the dead flowers and starts washing the vase. Letting out a soft chuckle as a smile breaks across his face as he sees Stiles still standing awe struck in the doorway. “Did I really break you that good babe? I mean I know it's been awhile but damn. I do have a question for you though. Why did I taste Scott on you?” Derek gives Stiles a questionable glare while filling the vase.

This statement finally breaks Stiles out of his trance, and he shakes his head. “I told you I was visiting him, and he decided to tease you before I left by kissing me.” Stiles walks over closer to Derek smiling as Derek finishes filling the vase and getting the orchids all set up. “He did, did he? I may have to punish him for that, you smell really strongly of him actually. What all did you do together?” Derek's voice has a slight growl to it and his eyes start to glow blue. Stiles quickly walks over and kisses him. “Babe calm down, we just did mutual hand jobs. I told him I was saving this for you.” Stiles smacks his butt, and the sound makes Derek look and practically start drooling. “Fuck babe, did you work out and focus on squats so once we came back, you’d be even more fuckable?” Derek walks up to Stiles and gropes his butt before pressing his front to Stiles’ back pushing his front against the counter while growling softly in his ear.

Stiles can’t help but shudder as Derek's hardening cock brushes against his butt. “Oh, fuck Der, slow down a bit, after all I need to admire you as well since Scott surprised me with his new look. When I told him about how much better he looked, he said just wait till I saw you. Also, you’ve been teasing me as well but not showing me!” Stiles pushes back against Derek “Now let me see what the pack trip did for my sour wolf?” Derek smiles and kisses Stiles’ cheek before getting off him and standing with his hands on his hips smirking at Stiles. “Fine you may admire.”

Stiles turns and looks at Derek and can’t help but drool when he sees him. Like Scott Derek had his beard but he had let it thicken up and fill out a bit more and it perfectly highlighted his jawline. The real attraction though was Derek's body. His shirt looked like it was painted on. His pecs pushed the tank top he was wearing out so much he had literal cleavage. Stiles eyes wandered down Derek's body and he had to stop when he noticed that Derek's normal six pack was gone. No, this asshole had somehow upgraded to an eight pack of abs and each one was sharply defined.

Derek flexed his arms a bit causing his veins to pop out a bit but more impressive were his biceps. Stiles used to be able to wrap one hand around his bicep. Now he could tell it would take two. Stiles keeps checking out Derek and sees his hard bulge and then notices how tight his shorts look. “Holy shit, it looks like you’re literally standing on tree trunks.” Stiles winks at Derek before stepping forward and rubbing his bulge before he walks behind him. Stiles bites his lip as he sees Derek’s ass stretching his shorts.

“Fuck Der and you made the comment about my ass, you’ve got one that puts mine to shame.” Derek chuckles and then sucks in a breath as Stiles grinds against him. Derek turns and wraps his hands around Stiles’ neck, keeping him in place as they make out again. They keep making out, Stiles running his hands over Derek’s body, worshipping it as best he can without breaking the kiss. Derek takes a few steps forward causing Stiles to find himself leaning back against the kitchen counter again. As they make out Stiles grinds his bulge against Derek’s and Derek does the same, each grind getting harder and harder as their arousal grows.

“Fuck…bedroom now.” Finally breaking the kiss that’s all Derek says before quickly picking Stiles up by his waist and putting him over his shoulder and heading to the bedroom. “Wow Der you’re really ready to go, aren’t you?” Stiles says as Derek scoffs while stepping into the bedroom and tossing Stiles onto the bed. “Fuck yeah, I’m ready, that’s the longest I’ve been without you since we became official, and I can smell how turned on you are and it’s…. driving…me…. wild!” Derek let’s out a growl and his eyes are glowing bright blue as he looks at Stiles.

Stiles audibly swallows while reaching down to palm his bulge and Derek let’s out a deep growl. “Stop touching yourself and strip…NOW!” Derek commands and Stiles nods before quickly slipping his shirt off. When he goes to slip his pants off though he struggles a bit. “Oh, come on, get off of me already.” Derek chuckles while watching Stiles’ struggle. “I guess your ass is too big for your pants?” Stiles scowls at Derek before leaning up a bit more and the pants finally slip off his ass and he takes them off the rest of the way. As Stiles goes to grab his underwear he stops and crosses his arms. “How come I’m the only one down to my underwear?” Derek smiles at him and winks before grabbing his own shirt and slipping it off causing Stiles to drool even more while looking at Derek’s larger hairy torso. “Fuck that’s even better than I imagined.” Derek flexes for Stiles and then turns around before slowly slipping his shorts off giving Stiles a strip tease and revealing that he had gone commando as his perfectly hairy ass is now out in the open.

Derek finishes sliding his shorts off before turning back towards Stiles and stroking his 10-inch rock hard cock slowly. “You ready for this?” Winking at Stiles making him drool even more at the sight before reaching down and lifting his hips to pull his underwear off, and his own cock sticking up into the air once it’s free of his underwear. Derek grabs Stiles’ underwear from him and puts them up to his nose, inhaling his scent before dropping them. “Fuck I missed your smell babe!” Derek slowly climbs onto the bed, crawling over Stiles and winking at him once they’re face to face again “Hey handsome, whatever you’ve been doing keep it up, you’re looking great.” Derek smiles before quickly leaning in and making out with Stiles. Stiles moans into the kiss while feeling the heat radiate off Derek’s body. Derek rolls his hips making his cock rub against Stiles’ cock making him shudder and break the kiss to gasp loudly. “Ohhhhh fuuuuuuccckkkk…” Stiles bites his lips as Derek teases him by grinding against him again slowly. “That’s the plan handsome, believe me!”

Derek growls while reaching down, and wrapping his hand around both of their cocks, pressing them a bit tightly together before slowly stroking. Stiles sucks in a deep breath before exhaling a long groan. “Oooohhhh fuck Der…that feels incredible.” Stiles thrusts his hips a bit to increase the friction, making Derek groan. “I see I’m not the only eager one, do you want me to skip ahead a few steps?” Derek looks at Stiles who nods and his eyes plead for more. “Well get into position while I grab the lube.” Derek carefully moves from over Stiles, rummaging through the bedside table for the lube as Stiles rolls over and gets on his hands and knees.

“You know I never get tired of the irony of you fucking me doggy style.” Stiles looks over his shoulder and winks at Derek making him scowl while slicking up his cock with lube. “Let’s see how funny you find it now.” Derek quickly pushes into Stiles stopping when he’s halfway in and holding himself there panting as Stiles moans loudly, his body shudders in response to Derek pushing into him so far. “OH FUCK…. UNGH” Derek pushes into Stiles the rest of the way and growling as he bottoms out. Derek wraps his arm around Stiles’ chest, sitting back up and pulling him back against his chest. Derek kisses Stiles’ cheek and slowly pulls out a bit before pushing back in. Derek pants as Stiles’ hole squeezes his cock before slowly rolling his hips back and forth, grabbing onto Stiles’ ass firmly. “You ready for me to cum in you, filling you with my alpha seed?”

Stiles looks back at Derek. “Uhm, fuck yes that sounds perfect, please Derek fuck me harder.” Derek nods before picking up his pace steadily until he’s got a good solid rhythm making himself and Stiles both pant and moan. Back and forth, faster and faster, rougher and rougher. This is how it goes as Derek fucks Stiles and the sounds and smells of sex fill the air. Derek finally hits Stiles’ prostate and they both moan and Stiles’ cock leaks out a good amount of pre. “Damn fox, just that one hit did that let’s see what happens when I do this?” Derek thrusts into Stiles’ prostate several more times making Stiles moans louder and louder with each hit. “Fuck Der you keep hitting that and I’m gonna cum real soon.” Stiles wiggles his ass and Derek bites his lip moaning.

“Fuck if you do that more, I won’t be too far behind you.” Derek says making Stiles smile before wiggling his ass to mess with Derek even more. “Fuck yeah babe…so tight, I’ve missed this!” Derek responds before thrusting hard into Stiles’ prostate. “Oh…. fuck…. fuck…so good……oh YES!!” As Stiles wiggles his ass a bit more as Derek hits his prostate making Stiles moans loudly. “OH, FUCK I’M CUMMING!” Stiles moans before shooting his load on the bed causing his hole to squeeze Derek’s cock. Derek moans and throws his head back moaning as he cums. Stiles feels Derek’s load shoot into him before his eyes roll back into his head as he’s lost in orgasmic glory. Derek thrusts slowly into Stiles a few more times as his orgasm finishes and Stiles slumps forward, Derek’s arm barely holding him up. Derek kisses Stiles’ back before slowly lowering him onto the bed. Once Stiles is down Derek slowly pulls out of him before flopping down onto the bed next to Stiles. They both lay there panting for a moment, both of them riding out their afterglow.

“Wow that was…. amazing, maybe I should go away more often fox?” Derek chuckles before Stiles quickly sits up and scowls at him. “If you do, I’ll have you fixed sour wolf. Fuck I’m sticky.” Stiles rolls over onto his side, looking at his chest. Derek looks at him before leaning over and licking some of the cum off him and teasing his nipples. “Oh, that feels good, let’s change the sheets and then go to bed. I need to cuddle my sour wolf.” Derek nods before standing and hearing a loud smack as Stiles smacks his ass. “I’ve missed that ass.” Derek rolls his eyes and walks over to the closet and grabs some fresh sheets out. Stiles stands and pulls the sheets off the bed, then tossing them into the dirty hamper. Turning Stiles watches Derek get the clean sheets onto the bed, admiring the view.

“Will you come help or just stand there being useless?” Derek smiles and winks at Stiles who shrugs before walking to the opposite side of Derek and helping him get the sheets on. A few minutes later the sheet is on and they both flop onto the bed. Derek smiles as he looks at Stiles and traces his fingers over his abs. “I could get used to these and especially these.” Derek’s hands move up and he gropes Stiles’ pecs. “Damn your muscles look so much better, I always told you working out wouldn’t hurt.” Stiles smiles and he reaches over and rubs Derek’s chest. “Well, I decided I’d surprise you and I’m glad I did, cause you also bulked up.” Stiles traces Derek’s thicker abs. “Derek smiles and he wraps his arms around him, and he kisses his forehead. “Glad you noticed, now let’s head to bed.” Derek kisses Stiles’ nose. “Good night my tricky fox.” Derek kisses him and once he breaks it Stiles smiles. “Good night my sour wolf.”

Chapter Text

Stiles woke up and first feels a familiar, comforting warmth and a realization of how much he missed it. Smiling while looking down to see Derek’s arm was wrapped around his chest before noticing Derek's torso was pressed against his back like it fit there naturally. Stiles smiled and gently stroked Derek’s arm for several moments enjoying the feeling of his boyfriend pressed against his back.

After a few minutes Stiles suddenly realized he needed to pee, but didn’t want to get up, he was too comfortable. Also, he knew that him getting up might wake Derek and he didn’t want to do that either. Stiles laid there wondering what to do as his urge to pee kept increasing. Finally, he smiled as he realized just what he should do. I don’t want Derek to awaken until I want him to. Stiles then snaps his fingers and heard Derek’s breathing get deeper.

Stiles smiled and kissed Derek's arm before removing it from around him and headed into the bathroom. Stiles quickly relieved himself and while washing his hands, he couldn’t help but check out his reflection. Stiles stood back and flexed still not use to the sight of him with the more defined muscles.

“Damn that bit of muscle really does look good.” He then turns and admires his ass in the mirror and smacks it seeing it jiggle and then feels himself get turned on from his own ass while chuckling softly. “Wow Stiles that’s just sad, you’re turning yourself on. Although with an ass like this I have a valid excuse.”

Stiles chuckles softly shaking his head as he walks back to the bed and looks at Derek now lying on his back. Stiles admires Derek laying there looking so handsome and gorgeous. Stiles gets an idea as he grabs the blanket and moves it off Derek fully exposing his lovers’ body to his admiration and then smiling as several ideas run through his head and in response, felling his cock rise to attention.

“Well since I made sure he won’t wake up until I want him to, I guess I could have some fun.” Stiles crawls on top of Derek, straddling his waist. Stiles smiles while rubbing Derek's body, admiring his thick pecs. Stiles smiles as he wills Derek’s pecs to grow, quickly feeling Derek's pecs start to push against his hands as they swell up with muscle. Stiles starts kneading Derek's pecs as they quickly become more than a handful.

Stiles keeps massaging them until willing the growth to stop once Derek's pecs have almost tripled in size. Stiles smiles as he leans forward and nuzzles his face in between Derek's pecs and inhales deeply, smiling as Derek's scent fills his nose. Fuck this is hot! Stiles eventually withdraws his head and smiles while sitting back soon feeling something pushing against his back.

Even asleep he's getting turned on by this, well he's not the only one. Stiles grinds his rock-hard cock against Derek's abs, and suddenly gets another idea. Well, I’ve always been into big guys so let's make my sour wolf even bigger. Stiles wills Derek to grow in size, watching intently to see Derek grow. It takes a bit for Stiles to notice but soon he notices Derek's head is starting to lean against the headboard of the bed as he grows. Stiles looks over his shoulder and sees Derek's feet stretch closer and closer to the end of the bed.

“Fuck he's really growing, I know I wanted it to happen but fuck…. this power takes some serious getting used to!” Stiles smiles at feeling Derek grow under him, feeling Derek’s waist spread his legs further as he grows. Fuck this is so hot! Stiles grinds his cock against Derek’s abs and moans as he feels Derek's abs rub against his cock.

Stiles takes a moment to look at Derek and his expanding body. This is nice but it could go a little faster Stiles gasps as Derek starts growing faster under him quickly passing eight feet in height. Noticing that his legs hang off the bed and his back is starting to lean against the headboard. Stiles smiles while changing his position so he can lay on Derek's chest, scooting up so he's laying his head in-between Derek's pecs.

Smiling while feeling Derek’s pecs rise and fall with each breath and enjoying the feeling of Derek's warmth around him. Ahhh this is nice Stiles settles down and closes his eyes to enjoy the warmth of Derek for just a moment.

Creeeeeaaakkkk…...CRACK!!

Stiles doesn’t notice that he’d drifted off to sleep until he's jolted awake by a loud cracking sound and the sensation of falling a bit.

“AAAAHHH!! what the fuck?” Stiles sits up and looks over his shoulder the first thing he sees is Derek’s cock that now looks like a body pillow waiting to be hugged and just past that he can see a hint of his large balls. Looking further Stiles sees that Derek's feet look absolutely massive and they’re almost touching the wall by the door of the loft.

Stiles feels his cock twitch in response to the hot sight, watching Derek’s feet grow larger and closer to the wall. Stiles then turns around letting out a gasp as he notices that he's now lying on the upper part of Derek's abs cause of how large he is now. Looking up a bit more Stiles’ vision is filled by the massive pecs that rise and fall before him with every breath. Stiles eventually looks past Derek’s large chest to see his head is now brushing the ceiling, Derek’s large and broad shoulders scoot up the wall with every breath.

“Woah Der, you’re fucking huge! You almost fill the room, good thing you’ve got lots of space. I do wonder though, just how big are you?” Stiles shrugs as he looks at Derek and suddenly crystal clear he hears, “Twenty-five feet tall…. twenty-five and a half…” The number keeps going up as Stiles looks around for who said that, but he doesn’t see anyone and then smack his head as the gears connect to form a plausible answer.

“Guess a question with enough curiosity, or will activates my power?” Stiles jumps off Derek excitedly as he thinks of just how hot it is to have a giant boyfriend. As Stiles looks Derek over, finally seeing what woke him up, the bed frame in pieces and what isn’t already fully broken is getting there as Derek keeps growing, the remains creaking and cracking as the frame breaks even more. “Oops looks like we broke the bed frame babe…again!”

Stiles chuckles, looking over Derek as he keeps growing till, he hears a soft cracking noise. Stiles turns and sees that Derek's feet are now pushing against the wall, forcefully, and cracks are starting to form.

“Shit you’re getting too big for the loft, ok growth stop.” Stiles snaps his fingers and Derek's growth stops as Stiles looks in wonder at his giant boyfriend. Stiles decides he wants back up onto Derek and he tries to climb for a moment, struggling a bit and stopping when he can’t make it up onto Derek’s chest. Stiles thinks of floating up onto Derek and he quickly feels himself lifted into the air until he lands on Derek’s abs.

“There we go, that’s better, now why don’t I explore a bit!” Stiles ignores his throbbing cock as he looks over Derek’s large torso and walks down the middle of his abs. Stiles continues walking down Derek's body, eventually reaching his pelvis, and gasping when he sees Derek's massive cock resting against his thigh. The sight makes Stiles bite his lip as he feels his own cock throb with desire. Derek's cock looks almost as big as Stiles and his balls look massive as well.

Stiles smiles with a bit of desire and mischief as he waves his hand and wills Derek to get hard, watching as his cock throbs and pulses rising to attention. Then Derek rolls his hips, letting out a soft but deep moan as he grows hard.

“Alright so I didn’t just make your cock hard it actually turned you on too. Something tells me that zone of silence spell is going to come in handy tonight!” Stiles watches as Derek's cock keeps rising to attention and starts stroking himself as the giant cock stretches over his head. Derek rolls his hips again a bit more than last time and Stiles staggers a bit as Derek moans again.

Stiles catches himself as Derek stops rolling his hips and looks up and up until he finally sees the top of his boyfriend’s cock, moaning as he realizes that it's at least two feet over him so that means Derek has a seven-foot cock. Stiles reaches out and touches the cock and it feels hot to the touch, and it also jerks when he touches it.

“Well, I see someone is ready to wake up, well let's have some fun then.” Stiles starts rubbing his hands on Derek's cock touching as much of it as he can, making Derek moan louder as Stiles strokes him. In response Derek’s cock jerks, throbs, and bounces as Stiles rubs and strokes him. “Looks like I’ve got a bucking bronco to ride here.” Stiles says in a cheesy southern accent while thinking of how to ride Derek’s cock at its new size.

“Alright big guy…rodeo time!” Stiles grins broadly as he wraps his arms and legs around Derek’s cock. Stiles starts slowly humping Derek’s cock which makes him roll his hips and then Stiles notices a large shadow cover him. Stiles doesn’t have any time to react before Derek’s hand is wrapped around him and his large cock. Stiles inhales deeply, out of desperation and a bit of desire, as he’s squashed against Derek’s cock. Derek starts to slowly move his hand up and down, giving Stiles the strangest and yet hottest hug, he’s ever gotten. Just when the pressure almost becomes too much it suddenly disappears. Stiles groans as Derek removes his hand and lets go of his cock, moving down to fondle his giant balls.

Stiles flops back down onto Derek and lands roughly at the base of his cock, his legs still straddling the large appendage. The shadow covers Stiles again and he watches as Derek’s massive hand starts to slowly stroke himself again. Stiles finds himself laying in Derek’s trimmed pubes, drooling as he watches Derek’s massive hand work his cock.

“Well, that’s taking some of the fun out of it but fuck if it isn’t hot.” Stiles stays laying there for a moment stroking himself in time with Derek until finally he scoffs and snaps his fingers and Derek’s hand let’s go of himself and he starts fondling his balls instead. “There we go now you’ll touch everywhere except your cock. That is all mine!”

Stiles quickly jumps up excitedly and loses his balance making himself fall forward and land against Derek’s cock. Derek sucks in a breath before gasping and thrusting his hips a bit almost making Stiles lose his balance as he turns and scowls at Derek.

“Will you stop moving so much! I’ve got to get on before you start bucking!” After a moment Derek seems to calm down a bit and Stiles nods and wraps his arms around Derek’s cock making him moan again but doesn’t move as much. Stiles smiles and starts riding Derek’s cock using his whole body. Derek let’s out more moans and his left hand starts touching and teasing his nipples.
This makes him moan even louder and Stiles feels something wet and sticky slide onto his chest, then is hit by the smell and instantly Stiles knows that Derek is starting to leak pre. “Fuck babe you really are ready to go, well then let’s keep this ride going! YIPPEE KI-YAY!!”

Stiles gets back to wrapping his legs around the base of Derek’s cock and grinding against him feeling his own cock grind against Derek’s. Stiles shudders with pleasure as he feels Derek’s cock throb and bounce with pleasure under him.

“Oh, fuck yeah…ohhhhh that feels incredible!!!!” Stiles keeps riding Derek as more pre makes Derek’s cock and Stiles’ torso slick, but he doesn’t lose his grip, if anything he tightens it just a bit to make sure he won’t slip. Stiles hears Derek suck in a breath before exhaling and his whole-body shudders, the breath even comes out as a bit of a shudder.

“Damn Derek, guess that felt good, well here let me do it again!” Stiles tightens his grip again while watching over his shoulder to see how Derek reacts. He's not disappointed as Derek arches his back while stroking his nipples and letting out a deep full body moan. Derek keeps using his right hand to rub his chest and down his torso but anytime he gets close to his cock his hand slides back up his abs and then his chest.

“Fuck babe, this is so hot, you’re so hot! Fuck! I feel like I’m getting close already!” Stiles rides Derek’s cock faster and harder, really grinding his cock hard against Derek’s that it borders a fine line between pain and pleasure. Stiles notices that Derek is leaking pre like a faucet now and he can hear Derek starting to pant and Stiles looks and notices that Derek’s chest is covered in a light sheen of sweat. Stiles moans as he grinds against Derek’s cock again and again feeling his own climax building.

“Alright bronco, time to finish our ride!” Derek bucks again and Stiles squeezes Derek’s cock tightly, holding on as hard as he can. “Fuck bronco…hard to hold on when you buck so hard, but damn is it fun. I’d much rather be able to just focus on the ride then holding on, wait I know what to do? I want to stay on Derek’s cock till our orgasm is done.” Snapping his fingers Stiles feels the strain on his arms and legs lessen as his power takes over gravity and holds him up. Slowly Stiles let’s go until he knows for sure he’s being held up. “Fuck I LOVE THIS POWER!” Stiles starts riding Derek even harder, grunting, and panting as his pleasure level builds.

Derek quickly responds and starts thrusting and grinding against the air above him and Stiles enjoys riding his boyfriend’s cock like a bucking bronco. Derek’s thrusts start to speed up and his moans become louder and more frequent, and Stiles can feel that Derek is getting close, and he licks Derek’s cock tasting the pre moaning as he savors the flavor.

Stiles feels Derek start to thrust faster and deeper until finally Derek let’s out a loud moan and Stiles feels Derek’s cock expand and throb as his climax hits and his balls tighten. Looking up he watches as Derek’s cock shoots his load into the air and behind himself. Following the shots Stiles watches as Derek’s load goes over him, following it for a moment to see it splash his chest. As Stiles watches Derek cover his chest he soon feels something wet and sticky cover has arms and torso. Turning around Stiles sees that some of Derek’s load is now sliding down his cock and covering up Stiles a bit.

Stiles stops counting after Derek’s sixth shot, instead he just focuses on riding his own after glow. Derek’s orgasm finally slows down and Stiles feels Derek’s cock start to soften in his arms. Once Derek’s cock softens enough Stiles feels his feet touch Derek’s pubes he let’s go and takes a step back.

Stiles pants before turning and seeing just how far Derek’s load went, covering a lot of his abs, a bit of his chest and even some on his face. “Fuck Der, that is one of the hottest things I’ve seen in a while. Now I guess it’s time to clean up and then I guess I’ll let you wake up if you’re ready?”

Stiles waves his hand and instantly Derek’s massive load is cleaned up and Stiles lays down on his chest waving again to return Derek to his normal size. Stiles feels Derek’s abs shrink under him as his chest starts to get closer to his head and Stiles just watches as Derek’s body seems to retract into itself while his own feels like it’s stretching out, even though he’s staying the same size. Stiles enjoys watching Derek shrink before him and licks his lips, getting a bit turned on again.

“Well, that’s one fetish I never thought I’d get to live out, but it was better than I’ve ever imagined. Next time though you’ll be awake for it my sour wolf.” Stiles smiles at Derek, before leaning up kissing him. When he breaks the kiss, he gets into his previous position with Derek’s arm wrapped around him and snapping his fingers so Derek will wake up when he’s ready to. As Stiles shifts to get a bit more comfortable, suddenly he hears a soft growl from behind him and Derek’s arm pulls Stiles closer to him.

“Settle down little fox or you’ll wake the big bad wolf, and he wants to sleep.” Stiles smirks and rolls his eyes. “Is that so? Whatever will happen if I do that?” Stiles smirks thinking he’s won until he feels Derek’s arm shift and he’s quickly rolled onto his other side, facing Derek, whose eyes are glowing a soft blue and Stiles can’t see him clearly, but he knows that Derek is smirking at him.

“You want to say that to my face little fox?” Derek pulls Stiles in closer until he can feel Derek’s warmth on his chest and up his neck. Stiles smiles and chuckles softly. “You heard me, I know how good those ears are, now get back to sleep. You’re not the only one who wants to sleep, now close those beautiful eyes, and cuddle me.” Stiles leans forward just a little bit, and he kisses the tip of Derek’s nose before he shifts and lays his head against Derek’s chest. Derek lets out a soft sigh and he rubs Stiles back and soon they both drift off.

Chapter Text

Stiles wakes up and the first thing he feels is surprisingly cold.  Stiles starts reaching around on the bed to try and find Derek so he can nuzzle up to him, but his search yields no reward. Stiles opens his eyes and sits up seeing that Derek is definitely no longer in the bed or in sight. Wondering where Derek could be Stiles is greeted by the smell of coffee, bacon, and some other pleasant smells.

 Stiles smiles and stands, stretching, feeling the warmth of the sun coming through the large loft window while stepping closer to it. “Are you trying to show off for the neighbors or did you forget your naked?” Derek’s voice makes Stiles jump a bit, before turning to see Derek standing at the foot of the bed with two cups of coffee wearing a tight tank top and a pair of briefs Stiles had bought him for Christmas three years ago, when he’d started staying over all the time and had gotten tired of Derek wearing boxers all the time.

Stiles quickly noticed that thanks to Derek’s recent growth the briefs and shirt looked tighter than normal. “Well, I feel they should get to enjoy what I have to offer if they should happen to look this way. I’m surprised you’re wearing the briefs I got you without me having to ask. Also, not that I’m complaining but those briefs look a bit small now. Guess we’ll have to go shopping for some new ones soon!” Stiles said excitedly paying no mind to the eye roll from Derek. Stiles knew Derek hated clothes shopping but tolerated it cause of how happy it made him so he had learned to tolerate it.

 Derek smiles while walking over to Stiles and passing him his coffee cup. “Well, I decided I’d try and be the romantic one this morning. I made coffee, breakfast, let you sleep in a bit, and dressed to tease you. If you don’t like it, I could always put on a pair of boxers?” He gives Stiles his signature cocky smirk. Stiles quickly presses himself against Derek, giving him a scowl.

“Don’t you dare, either wear the briefs or nothing…actually on second thought. Go ahead and take the briefs off.” Stiles smirks back as Derek huffs and rolls his eyes while his smirk turns into a full smile, before grabbing Stiles’ cup and putting it down.

“I forgot what’s it like to tease my horny fox.” Derek puts his coffee cup down as well before kissing Stiles. Quickly letting the kiss deepen before grinding against him slow and hard. They make out for several moments until Stiles breaks the kiss and gasps for air while leaning against Derek.

“Fuck Der, if you keep that up breakfast is gonna get cold or burn.” Stiles says with an all too familiar hunger and spark in his eyes.

Derek shrugs before reaching down and palming Stiles’ ass, smirking at him while doing so. “That’s ok I could just make some sticky buns and then eat them.” Derek says making Stiles shudder as he feels Derek’s hands grope and massage his ass, seeing the same hunger in Derek’s eyes that reflects his own desire.

“How about we make them after we’ve eaten. I’m starving…my frisky wolf and for more than just this.” Stiles quickly reaches down, and strokes Derek’s stiffening cock, making Derek inhale sharply before letting out a slow soft growl.

“Babe if you don’t stop that, I’m gonna be making the sticky buns right here and now!” Derek says looking at Stiles, his eyes glowing their vibrant blue as his sideburns start to thicken, clearly starting to shift a little. Someone was feeling frisky which wasn’t normal for him so Stiles decided to tease him a little more.

Stiles smiles broadly while continuing to stroke Derek one more time slowly before walking away towards the dining area, swaying his hips while doing so. Stiles smiles while taking his seat. Then he hears a soft growl come from the bedroom, making Stiles bite his lip with excitement.

 Stiles shakes his head to calm himself down before looking at the plates on the dining table loaded with pancakes, bacon, eggs, and hash browns. “Not that I’m surprised but this looks great Der.” Stiles looks towards the bedroom to see Derek step out and feels his cock twitch while admiring Derek’s hard on in his underwear. “Although that looks WAY better!” Stiles keeps staring as Derek walks over to him. Derek chuckles before leaning over the back of Stiles’ seat, grabbing his chin and forcing it up to make Stiles look up before leaning in and kissing him deeply, teasing his nipples while doing so.

When Derek breaks the kiss, he smiles at Stiles and inhales deeply. “Mmmmmm and you smell WAY better. My horny little Fox!” Derek winks at Stiles before walking to the opposite end of the table and grabbing his seat. Enjoying the smell of his mate’s excitement the whole way over.

“Well, some good news, I’m free today so we can do anything we want to do today. Now while we eat, I want you to think of what you’d like to do first, anything is on the table.” Derek says before winking at Stiles. Then quickly stuffs a piece of bacon into his mouth, keeping eye contact with Stiles while doing so. Noticing that Stiles bites his lips and an all too familiar glint in his eyes of a dozen ideas racing through his head.

“Really huh, anything you say, well then. I’ll think of what I want to do while we eat.” Stiles winks at Derek while taking a bite of eggs. They both eat in silence for a few minutes eating. Stiles eventually notices both of their coffee cups are empty. Grabbing his own and then Derek’s, flexing his chest and arms as he does. Feeling a bit small while looking at his sour wolf “Though I think I’ll have to add in a workout to my plan today. Need to make sure I can keep up with my bigger sour wolf! Heck who knows, maybe I could even surpass you someday?!” Stiles says with an eager smirk while looking at Derek.

Derek smiles before gently grabbing Stiles’ hand and kissing the back of it. “I’m enjoying your flexing and teasing, but you do know you’ll never be as big as me, right? Well, you could try but I’d make sure I’d workout just as hard to stay ahead of you. Don’t want my beta to be bigger than me, doesn’t look good from an alpha viewpoint.” Derek winks at Stiles while chuckling softly.

“Really huh? Don’t you think it would be a little hot if I was bigger?” Stiles winks at Derek before walking into the kitchen. Derek shrugs as Stiles grabs the coffee pot and pours the coffee. “Well, it might be a little hot, kind of like the macro/micro foreplay we’ve done, but it can’t happen. I’ll always be bigger than you and not just cause I’m your alpha.” Derek says very matter of factly. “I’m legit bigger than you in natural size and that’s never going to change my little fox, no matter how much you wish it would?”

Stiles rolls his eyes while fixing the coffee up for them both and then walks over to the table. “Never say never babe.” Stiles winks at Derek while passing him the coffee cup. I wish I would slowly absorb Derek’s muscles and height until I say for the transfer to stop Stiles waves his hand to make the magic begin.

Derek rolls his eyes and scoffs while swallowing down the piece of bacon he just ate. “In this case we are going to have to agree to disagree babe. You will never be bigger than me. It…. can’t…. happen.” Derek smirks at Stiles, emphasizing his words to further prove his point.

 If only you knew the power I now have, well you soon will. Stiles thinks to himself “Well, sounds like a challenge, and you know I never back away from a challenge.” Stiles gives Derek a smug smirk while looking at him, looking for any sign of the magic working. He quickly notices Derek’s shirt isn’t quite as tight as it was before. Derek rolls his eyes while grabbing his coffee and taking a few sips. Stiles feels his patience wearing thin as his drive to prove Derek wrong increases.

 I wish the transfer would speed up but not too quick to where Derek notices immediately Stiles waves his hand again. Watching as Derek puts his mug down, Stiles notices Derek’s arm slim down at a more noticeable rate now. Stiles smiles while feeling and seeing his own arms start to grow stronger and bigger.

“Well, what all did you and the rest of the pack get up to on the trip? Except for multiple orgies under the full moon.” Stiles asks with a smug tone.

 Derek is caught off guard by Stiles’ question, causing him to accidentally inhale the piece of egg he was chewing. Which results in a loud coughing fit as he pounds his chest to steady himself. “Oh, come on now after all the shit we’ve been through you’re going to choke on a little piece of egg?” Stiles quickly gets up and gets over to Derek and starts firmly thumping his back to help Derek. After a few moments Derek catches his breath as Stiles rubs his back with tenderness.

“Well thanks babe, for helping to save me after you tried to kill me.” Derek says with a slight chuckle while giving Stiles a glare and then smacking his ass leaving a red outline of his hand. Stiles inhales sharply as Derek smacks him, looking at his ass to see the outline of where Derek smacked him. “Well, if that’s how you’re going to be when I save your life than I guess I won’t do it again.”

Derek rolls his eyes, and quickly grabs Stiles’ hand to stop him. Pulling him into a kiss as well as into his lap. Stiles smiles into the kiss, rubbing Derek’s chest before running his hand down until he gropes his bulge, giving it a good squeeze making Derek growl softly into the kiss. They break the kiss and Stiles rests his forehead on Derek’s and Derek reaches up and gently grabs Stiles’ chin and then looks at him smiling.

“You know you liked it for one and two thank you. Now go sit back down and finish eating, you’ll need all the energy you can get for today.” Derek lets go of Stiles’ chin before giving his lips one last peck, then turning back to his meal. Stiles smiles at Derek while looking at him, slowly standing and looking at Derek closely.

Upon closer examination Stiles can really notice all of the size that Derek lost while he was helping and then kissing him. The difference excites Stiles even more, making him bite his lips to calm himself. Not wanting to spoil the surprise too quickly after all. Thankfully his growing semi can be explained away as him really enjoying kissing and teasing Derek. Though Stiles does love feeling the heft of it as he walks.

Stiles walks over to his seat and hears Derek whistle at him while doing so. “Damn babe I must’ve been in a serious sex haze last night. I didn’t notice how much better your ass looks now and your back looks damn good too. Maybe you were right and you should workout today? Give me a better cushion to enjoy when I’m fucking your brains out!” Derek says this in a very sultry tone that makes Stiles’ knees weak, as it always did when Derek used it.

 Stiles gives his ass a shake before flexing his back. Feeling his excitement grow while he does so, figuratively and literally as well. Knowing that Derek is unknowingly admiring the size he’s taken from him. The truth of his larger size and Derek realizing it makes Stiles even harder.

 Stiles looks over his shoulder at Derek before rubbing his chest, feeling his larger pecs. Then Stiles runs his hands down to fondle his cock and balls, enjoying the extra size and heft of them as well. Even feeling his balls swell larger and plumper in his hands while fondling them.

“Well, you can examine me all you want after breakfast. I’m not the only one who will need lots of energy today.” Stiles winks at Derek, before sitting down and looking at his currently oblivious and shrinking boyfriend. Derek gives Stiles a smug grin while continuing to eat, clearly just as excited to finish breakfast as Stiles is.

Stiles looks at Derek while eating, noticing that the loss of size for Derek is very apparent now as his chest barely pushes against his shirt and the shoulder straps are loose. Stiles also notices that even though Derek is sitting up it looks like he is slouching a bit and Stiles smiles before sitting up and looking at himself.

Stiles looks indeed larger overall, he had some nice pecs now, each one would fit in his hand quite nicely. His abs were now more cut and defined, his biceps were more apparent even without him having to flex. His thighs were getting thicker and stronger as well. Finally Stiles looks at his crotch and sees his balls slowly growing larger. His cock also swelling longer and thicker by the second.  

Wondering just how much size Derek has lost so far Stiles waves his hand and gets an answer. Derek has lost eight inches in height and forty pounds of muscle. Stiles smiles while looking at Derek, Let’s make it an even foot shall we and fifty pounds of muscle. Stiles waves his hand and sees Derek seemingly shift in his seat as his shirt gets even looser and Stiles feels the back of his chair brush against him while growing larger.

Stiles wonders how Derek hasn’t noticed his diminishing stature yet, but isn’t going to question it, thinking some background part of the spell is helping Derek not notice. He knows the real fun will begin once Derek realizes the situation, he’s gotten himself into with his cocky attitude.

“You know you still never answered my question about what you and the guys got up to?” Stiles asks while looking at Derek.

Derek shrugs causing the shoulder strap of his shirt to almost slip off his shoulder in the process. “Well, you’ve gone with us on a pack trip before so there’s nothing really to tell you. I mean we did some pack building exercises and let our wolves out to play since it was a super moon. You know sometimes with the younger wolves super moons can make them a bit…. unruly” Derek says and he hears Stiles let out a snicker while shaking his head.

“I think it’s funny you still refer to Liam and Theo as young wolves, they’ve been werewolves for six years now you know? That doesn’t matter though cause now I know you had an orgy or three, horny little I mean big wolves.” Stiles winks at Derek making him blush softly.

“Well to be fair Scott started it cause he had to show dominance and well one thing lead to another and yeah we had an orgy. Hey, you started it the last time you got to go on a pack trip, so I don’t want to hear anything.” Derek crosses his arms and puffs up his chest and Stiles has to try hard not to laugh at how silly it looks. Derek’s shirt is barely on his shoulders and his arms look even smaller then Stiles used to before he got his new power. Stiles shrugs while grabbing his mug, taking the opportunity to look at his arms. Stiles has to focus to not look shocked as his cock twitches at seeing just how big his arm is now.

“I might have but I don’t exactly remember you fighting it or anyone complaining about it. In fact, when we were done and in our puppy pile, I seem to remember you saying the pack felt closer than ever.” Stiles sticks his tongue out at Derek before taking a sip of coffee. Derek grumbles but nods while eating, somehow not noticing he’s having to reach further to get to his plate.

Stiles empties his coffee and puts it on the table. “Hey Sour Wolf, my coffee seems to be empty and I’m guessing yours isn’t far off. Since I did the last coffee refill, I believe it’s your turn.” Stiles pushes his mug closer to Derek.

“Oh, you’re cute last I checked I was the alpha here, so I believe you actually are supposed to get the coffee for us when needed.” Derek says smugly before biting into a piece of bacon. “Also I cooked and prepped everything so you refill the coffees!”

The response makes Stiles scoff and roll his eyes “Really are you sure about that?”

“Indeed I am my little fox!” Derek says while nodding and stuffing the rest of the piece of bacon into his mouth. Quickly chewing away while smirking at Stiles.

“Well, I think you should check yourself before you wreck yourself.” Stiles waves his hand, and watches as Derek quickly shrinks a foot in size. Derek’s eyes open wide, while looking around before looking at himself and shouting when he sees himself. “AAAAHHHH WHAT THE FUCK!!!!! WHAT HAPPENED!!” Derek stands and his briefs fall down around his ankles as his shirt almost slips off his shoulders.

Stiles bites his lip while looking at Derek, then feels the growth spurt hit him. Flexing his arms watching as they swell up larger, surpassing the size of Derek’s new larger size from before he started shrinking. Then his chest swells and gets even heavier, next his thighs get thicker and stronger. Then Stiles feels himself pushed up a bit on his seat as his ass gets larger, then looking down and seeing his balls and cock swell and plump up. The final bit of the growth spurt hits as Stiles watches his perspective rise even more. Quickly gaining the foot that Derek had lost.

“Babe we’ve got to figure out what happened to me. Wait…when did you get so big?” Derek says at first worried but then seeing the smirk on Stiles’ face Derek connects the dots. Derek scowls at Stiles, crossing his arms, trying hard to not wince at how small he feels now. “Oh, you crafty little fox, you did this, you put something in my coffee didn’t you? Well, it’s really funny now turn me back!” Derek stomps his foot and gives a soft growl, eyes glowing a vibrant blue while looking at Stiles.

“HAHAHAHA!!!! Oh, that’s rich, you still think you can give orders here?” Stiles starts laughing and banging his hand on the table a few times. “I think you need to seriously reconsider your position here?” Stiles says smugly while walking over to stand in front of Derek.

“Just cause you’re bigger then me now doesn’t mean you’re the alpha! Now turn me back!” Derek growls loudly at Stiles while watching him walk towards him, seeing Stiles unwavering smirk now looking down at him.

Derek stops growling while being forced to now look way up at his normally smaller human boyfriend who now looms over him. Derek looks back to his current eye level quickly noticing he’s now eye level with Stiles’ abs and it looks like he’s still slowly getting shorter.

Stiles rubs his chin while looking at Derek. “But I remember you saying something about the alpha always being bigger. I’d say I’m definitely bigger than you now, wouldn’t you? Well here just to be sure.” Stiles waves his hand, watching as Derek starts to shrink faster slipping down from his four-foot height. His shoulders finally becoming too narrow for his shirt causing it to slip off leaving him now naked. Derek watches as he shrinks, and helplessly watches as Stiles absorbs his size and soon, he’s right at eye level with Stiles’ cock. Derek notices this shrinking soon slows down again. Giving him a chance to look over himself, gone were his big beefy muscles, now he was a twig and incredibly short. Derek covers himself up ashamed of his smaller size as he looks up at Stiles who is smiling down at him.

Stiles flexes his chest while looking down at Derek before crossing his arms. “What was that about me never being bigger than you? Didn’t you say it was an impossibility?” Stiles crouches down till he’s face to face with Derek. “Doesn’t seem so impossible now does it?”

Derek looks at Stiles and scowls at him, but his expression soon changes to one of annoyance. “Wait…are you telling me you shrunk me because I said I’d always be bigger than you or is this you trying to become an alpha?” Derek’s eyes glow a bright blue as he growls and bares his teeth at Stiles.

“Wow I forget how stubborn you can be sometimes and also a little stupid.” Stiles scoffs before booping Derek’s nose. “Come on Sour Wolf, why would I be interested in taking your alpha status from you?”

“Because you can be a serious pain in the ass sometimes?” Derek says with a smirk before seeing Stiles wave his hand while rolling his eyes again. Quickly Derek notices Stiles is getting larger again. “Wait…. wait…. I was kidding…. STOP IT!!!!!” Derek shouts while feeling himself shift before roaring at Stiles.

Stiles hearing the roar immediately halts Derek’s shrinking now a bit concerned that he’s gone too far. Though Stiles feels his body respond to his alpha’s roar with excitement, feeling blood rush into his larger cock as it starts to rise to attention. “Oh, you’ve got to be fucking kidding me, how are you so small and yet your alpha roar still turns me on?”

“Probably because even though you’re much bigger than me. Your inner fox knows who the alpha is and what it wants.” Derek says with a smirk before reaching up and touching what he can of the shaft of Stiles’ cock making Stiles shudder and his cock even harder. “What say you give me back my size and I’ll let this whole thing slide, after all your fox just got a bit too mischievous.” Derek rubs Stiles’ cock more making Stiles shudder.

“Ohh damn that feels good…” Stiles starts to shudder from feeling his cock harden as Derek touches him, but quickly catches himself shaking his head. “….no….no….no you aren’t going to tell me what to do this time. If you want your size, you’ll have to earn it back little…pup.” Stiles smirks back at Derek and rolls his hips, as Derek gives him the death glare at being called pup. “You’ll have to suck your size out of me.” Stiles reaches down and strokes his stiffening cock as Derek keeps glaring at Stiles trying hard to not give him any satisfaction. Stiles nudges the side of Derek’s head with it and chuckles. “Go on little pup, you want your size back, then show me, the alpha you are and take it back.”

Derek slowly looks at Stiles’ cock the tip sticking up over his head while licking his lips. “I will get my size back and then I’m going to remind you why I’m the alpha.” The glow of Derek’s eyes softens as he shifts back to his normal self. Then he jumps up and struggles a little, clearly adjusting to the loss of strength. Taking a bit of extra time and effort to pull himself up onto his objective.

Once up though Derek wraps his body around the underside of Stiles’ cock. Stiles bites his lips as Derek wraps around his cock. Then Stiles lets out a soft moan as his cock throbs with excitement. His excitement building at noticing his cock is currently just a bit bigger then Derek’s whole body. Derek pulls himself up to the head of Stiles’ cock and as Stiles’ scent fills his nostrils, he feels his own excitement build before leaning forward and licking the head of Stiles’ cock.

 “Oh fuck…that’s a new feeling.” Stiles’ legs shudder as Derek licks the head of his cock. Sure, it had happened plenty of times before but at their current size difference, it was a new sensation for Stiles. With his larger and more sensitive cock and Derek’s small tongue. Stiles couldn’t help but revel in the new sensation of it.

Derek hearing Stiles moan and feeling him shudder makes him grin eagerly. Derek shifts positions to instead straddle Stiles’ cock. Then continues using his mouth to service the head of Stiles’ cock. Then Derek starts slowly rolling his hips to hump Stiles’ cock, making him moan even louder. Derek smiling while hearing how much Stiles is enjoying this, fully aware that he’s also enjoying it more himself now too!

It takes only a few moments before Stiles starts to leak pre and Derek eagerly licks it up. As Derek licks it up, he savors the taste and the new sensation of feeling stronger as he services Stiles. Neither of them notice yet just how fast Derek is taking back his size but soon finds he can wrap his arms around the shaft of Stiles’ cock even easier with every passing moment. Stiles shudders and stumbles back, leaning against the wall as he feels new sensations of pleasure from Derek. Stiles slowly slides down the wall until he’s sitting on the ground and his legs are stretched out before him.

Stiles moans as Derek continues his work and instinctively reaches down to stroke his cock. His hand barely grazes Derek’s back when he hears a growl. “No mine!” Stiles quickly pulls his hand back and looks down to see Derek glaring at him. Still rocking his hips though, not stopping his ride for a moment, even to chide his eager fox.

“Sorry little pup didn’t mean to upset you.” Stiles says with a smirk as Derek glares at him. Derek quickly responds by wrapping his arms around Stiles’ cock, squeezing even tighter making Stiles moan. “Ohhhh fuck so tight babe!” Derek smiles while humping and sucking on his cock, making Stiles lean his head back against the wall.

“Damn, I don’t think you’ve ever given a blow job this good before. I think I’ll have to shrink you down more often.” Stiles says to tease Derek before reaching forward. Gently running a finger down Derek’s back. Making sure to give his cute little ass a good poke to tease him even more.

 Derek ignores Stiles’ comment as he knows he’s just pushing his buttons. Feeling Stiles’ finger trace down his back and the several pokes to his ass just goads Derek on even more. His humping and sucking picking up speed. Derek can tell that he’s definitely larger than when he started, reveling in the revelation. Derek knows though that has plenty more to go though and he’s not stopping till he’s got every inch back.

Stiles leans back against the wall moaning while feeling Derek get steadily heavier on his cock. Feeling Derek do everything, to give Stiles an incredible blow job, even at his smaller size. Stiles feels Derek shift positions on his cock and looks down to see Derek is sucking on the head of his cock and now he can really feel Derek’s size get literally sucked out of him as Derek sucks and grows. Stiles rolls his hips and feels his cock grind against Derek’s growing body.

“FUCK!! Oh, fuck babe this feels so good!!” Stiles cries out as Derek’s mouth fits round his cock head better and better by the second.

Derek moans around Stiles’ cock before noticing it’s getting harder for him to ride Stiles’ cock. Looking at himself Derek notices that he’s not as scrawny anymore, his muscles look more defined. He’s still got more to go, though his current position doesn’t work as well at his new size. Derek quickly hops off and stands on the ground. He looks at himself and then Stiles and how close Stiles’ head is to the ceiling, guessing that he’s about three feet tall while Stiles is about nine feet, he’s still got work to do.

“Just wait little fox I’m not even done yet, going to make you squirm as I suck my size back.” Derek quickly grabs Stiles’ cock and starts sucking on the head of his cock again, eager to get his size back but he can’t deny this is pretty hot and watching Stiles squirm is icing on the cake.

Stiles rolls his eyes back as Derek’s growing mouth milks his cock while Derek’s hands also stroke his cock making him moan deeply. Derek notices his hands are getting better at wrapping around Stiles’ cock. Derek looks and sees he’s grown enough to where his hands can now wrap around Stiles’ cock from both sides and the realization spurns him on, encouraging him to pick up his pace. Stiles feels Derek pick up his pace and starts to buck his hips more and feels more of his cock fit into Derek’s mouth with every passing moment.

Stiles feels his back slide against the wall as he shrinks. He also notices he’s feeling weaker too, he opens his eyes and notices why. Derek has the head of Stiles’ cock fully in his mouth and he’s taking in more. The size exchange is noticeable now as Derek bobs his head, growing as Stiles shrinks.

“Oh, fuck baby…fuck yeah you suck my cock down. Take me into your mouth, I want to feel my head hit the back of your throat.” Stiles thrusts and sees more of his cock push into Derek’s mouth and soon feels the head of his cock hit the back of Derek’s throat, making him gag a bit in surprise. Stiles pulls back a bit chuckling softly. “Well, that’s a first, I don’t think you ever gagged on my cock sour wolf!” Derek slides his mouth off Stiles’ cock, and he grins at him.

“Nah I usually leave that up to you little fox.” Derek winks at Stiles before quickly swallowing down Stiles’ cock and quickly resuming his pace and moaning while feeling his size return to him at a faster pace. A few moments go by, and Derek is now four and a half feet tall and growing as he’s deep throating Stiles’ cock and fondling his balls feeling them tighten as his climax builds.

Derek slides his mouth off Stiles one more time while still stroking him. Then he leans down and starts sucking on Stiles’ balls. This makes Stiles buck and moan even louder and Derek smiles as he can feel Stiles’ balls bounce in his mouth as he hits five feet. He can tell how close he is to his old size with how small Stiles looks now. Derek smiles around Stiles’ balls and pops them out of his mouth. Smiling at Stiles who is panting and trying to catch his breath. Before he can though Derek quickly swallows his cock until his nose touches Stiles’ pubes. Stiles shudders and moans loudly as his climax hits. Usually, Stiles would warn Derek, but he’s overwhelmed with pleasure, moaning, and thrusting into Derek’s mouth as his intense climax hits.

Derek moans as Stiles’ load fills his mouth and a bit of his throat before swallowing it down eagerly. As Derek swallows the load, he feels Stiles’ cock get smaller in his mouth, opening his eyes to watch as the last of his size leaves Stiles and flows into him. Stiles pants and sweat covers his chest as he finishes shooting his load into Derek.

“Such a good boy!” Stiles says with a gentle smirk as he feels the size transference fully finish as his orgasm finishes washing over him. Watching Derek finish returning to his normal size at last, the last thing Stiles notices is Derek’s back and shoulders filling out a bit more.

Derek finishes swallowing down Stiles’ load, and feeling Stiles starts to grow soft in his mouth before slowly sliding his mouth off with a satisfying pop. Derek smiles at Stiles while licking his lips and then leaning forward to kiss Stiles. Stiles leans into the kiss and moans into it, while wrapping his arms around Derek as they kiss deeply.

Derek and Stiles make out for a bit their tongues pushing back and forth against each other until finally Derek breaks the kiss. Stiles pants once Derek stops kissing him and smiles at Derek and rubs his cheek affectionately, loving the feeling of the beard against his fingers. “Now this I can absolutely get used to hope that was as fun for you as it was for me?”

Derek smiles at Stiles, “It was a new experience and lots of fun just make sure…” Derek wraps his hand around Stiles’ neck, making Stiles shudder, “…you don’t ever forget who the alpha is in this relationship!” Derek growls in Stiles’ ear and Stiles shudders again feeling this one from his head to toes.

“Yes, alpha I promise, your little fox won’t ever forget, nor do I want to.” Stiles winks at Derek as he removes his hand from around his neck and Derek kisses him again but quickly breaks it.

“Now how about we finish breakfast, then you can tell me about this new power of yours. After that we can have some more fun with your newfound power. Cause I have a hunch what just happened was the tip of the iceberg” Derek winks at Stiles before getting up and heading over to grab his briefs and shirt before slipping them back on quickly and taking his seat. Stiles smiles broadly and feels himself get turned on at all the ideas that cross his mind as he thinks of the fun he’s going to have with Derek once breakfast is done.