12 Works in Spoilers for Series: Adventure Time: Fionna and Cake
Listing Works
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Something New, Yet Nothing Has Changed. by KYGUY445
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
10 Dec 2025
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Summary
At first, Fionna had nothing but disdain and jealousy in her heart for Fennal. In her mind, she was just a crappy bootleg of herself! On the other end, Fennel had always admired Fionna's bravery and beauty. It only took going on a drug filled quest for Fionna to finally see how beautiful Fennel truly was.
And to save Felix! They wouldnt forget about him, right?
OR
Fionna and Fennel actually kiss before snapping back to reality.
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christmas time with fionna and cake! by gonecloudfishing
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
09 Dec 2025
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Summary
“Come on, you’re supposed to be professional.” Hiccuping, Marshall turns a dopey smile upon Gary before his eyes widen considerably at something just over his head. “Oh, my God, everybody, shut up. The special entertainment’s here.”
Fionna accepts a tray of Christmas tree cookies and iced cocoa, her mouth watering at the sight of them as she absent-mindedly says, “Oooooh, I looooove special entertainment”. With some effort, she pulls her stare from the tray and turns it upon the front entrance, her eyes widening as they lock onto the man in the doorway.
Sporting an orange mohawk and a jacket covered in blue flames, Phelix casts an aloof smile about the room before he strides easily towards the deejay booth.
The jacket. He…he’s wearing her like-like jacket.
. . .
fionna and cake tackle their greatest adventure yet: waitressing on christmas night at the sweet spot. -
Oh Simon by EM_Marshel
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
24 Mar 2024
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Summary
What Golbetty thought as Simon completely missed the point. Very short.
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Maybe a monster by Onlypink
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
30 Jan 2024
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Summary
In an alternate universe where Simon Petrikov turned into a vampire before the mushroom war, things swiftly turn bad. Even Betty had limits, but she did her best to help him.
As the end of the world approaches, Simon is now caring for young Marceline.
Series
- Part 1 of Maybe a monster
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Lucid Dreamer by orphan_account
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
22 Nov 2023
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Summary
Betty Grof and Simon Petrikov reminisce at PB's Christmas ball during a slow dance (super angsty lol)
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Along For The Ride - comic by me; WaokeVale by WaokeVale
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
10 Nov 2023
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Summary
What if Prismo's and Scarab's conversation before Farmworld went somewhat differently? What if Prismo tried to smooth-talk his way out of the situation, only making things worse? Well, this comic's basically about that.
Or: instead of leaving and dropping Prismo in the hot tub, Scarab takes him along with him. -
local old man gets railed while on his period even though he swears he hit menopause by harper_dearest
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
20 Oct 2023
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"So, how come you didn't ask me for anything, fellow Petrikov?" The Winter King inquires, bending down to where Simon is sat.
"I'm just tired, I guess. It's been bugging me." Simon responds dryly, the Winter King tuts.
"Sounds like you're in pain more than anything else." He says, pondering before snapping his fingers with realization. "Simon, do you think it might be your period?"
Simon nearly has a heart attack. "What?"
En resumen, Simon swears that he's hit menopause since he's over 1000. Spoiler alert, he didn't. His reproduction system is young and functional, chaos ensues.
Series
- Part 1 of Kinktober 2023
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Vampires True Weak Spot by Planet_Mercury
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
19 Oct 2023
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Summary
“I could kill you right now so easily…”
“Then why don’t you, princess? Scared you’ll miss me too much?”
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This story is a continuation of Episode seven of Fionna and Cake Adventure time, "The Star". In this you will go on a more in depth and action packed adventure where they try a new plan that Simon helped workshop. There's more scenes of Bonnie and "The Star" interacting with eachother, and lots of moments of all the characters getting along before a battle of what could be possibly their end. Will they succeed in their fight and gain the crown? or will it all backfire and the trio will have to run away from another universe. Find out in this extension of Fionna and cake!! (WARNING: LOTS OF SPOILERS OF EPISODE SEVEN FIONNA AND CAKE, AND FIONNA AND CAKE IN GENERAL. IF YOU DO NOT WISH TO BE SPOILED, PLEASE DO NOT PROCEED)Series
- Part 1 of Who Thought Vampires Love Bubblegum
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It's just the two of us (or that's what we swore) by Kalliblast
Fandoms: Adventure Time (Cartoon 2010), Adventure Time: Fionna and Cake (Cartoon 2023)
14 Oct 2023
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Finding Prismo again should have been the happiest day of your life, but as the days go by and your visits become shorter and more sparse, you realize that you have a lot to mourn.
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Ain’t No Love Without a Little Tragedy by orphan_account
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time (Cartoon 2010)
28 Sep 2023
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“You were a wonderful experience”
“You were … everything”
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well the final Fiona and Cake episodes just killed me though I wish we had some scene between Marcy and Simon in the show so I wrote it myself-
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Cosmic Entity Ex by orphan_account
Fandoms: Adventure Time: Fionna and Cake (Cartoon 2023), Adventure Time
24 Sep 2023
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Summary
“So,, what do you want for dinner?”
“I don’t care.”
”Okay then, sandwiches it is.”
”Ugh, no. We always have sandwiches.”
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Doctor, I Can't Tell If I'm Not Me by masad
Fandoms: Chonny's Charming Chaos Compendium Vol. 1 - Chonny Jash (Album), Adventure Time, Some Crossover AU Thing
03 Sep 2023
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Summary
[HMS Chonny Jash but it's Simon Petrikov !!!!!!!!!!!!!!!!!!]
Things have finally calmed down for Simon, and he's living a comfortable life in the human city of Ooo.
Just kidding! Life is so horrendously mundane for Simon that every day is merely a repeat of the last. Marceline is having fun with PB, while Finn is spending time with T.V.
Who does Simon have?
His mental health takes a turn for the worse when he's forced to endure the consequences of Ice King's actions, despite all moral laws against such. He finally breaks when he realizes there is no real way to escape this. His consciousness are unwillingly split into three parts of himself. Only time will tell how he deals with this.