Chapter Text
Ejirou Kirishima knows that his date mates are hot.
Like super hot.
Like burning up hot.
He knows if anyone else would hear him say that, they would snort at him. Tell him that of course, he thinks that, they’re his partners. If they were bitter about just how hot his partners are, they might tell him that he’s being conceited.
But to Eijirou, it’s just the plain truth. It’s no secret that their class had been watched by the media ever since their first year, defeating whatever challenge had come their way. So being put in the news was nothing new.
As they grew older though, the news changed from what their potential could be to what they will do now . And as they matured, they caught the attention of those more focused on the shallow bits.
They were brought on to talk shows to discuss skincare routines or model clothes they had designed. Lists were constantly drawn up about who was the hottest or who was the most popular with such and such group. They had many, many, many fans throwing themselves at the group-
Eijirou growls at just the thought. Because that was the problem.
They were hot and they all knew it.
And so did everyone else.
It had surprised Eijirou just how possessive he was, he hadn’t thought he would be that type of person.
And then someone had pinned Mina to a wall, desperately trying to flirt with her while Mina had looked on disinterested. Rage and jealousy had flared, hot and bright within him, and Eijirou had stomped over, setting himself in front of Mina, glaring at the person as he basically covered her.
They had quickly backed off, most people intimidated by his size and teeth, and Mina had thanked him in a...very Mina way.
After that, protecting his date mates from outside advances kind of became his job.
Eijirou didn’t mind, mostly. He was always willing to come to their aid and truthfully, it settled something very primal in him in order to publicly claim them as his .
The wrench comes when one of his partners doesn’t know that they are getting hit on. Especially when one of them is known to blow up when he thinks that his partners are trying to help him, even for something he clearly needs help with.
...basically, Katsuki was an oblivious idiot who refused to accept the fact that the public (and annoyingly enough, other heroes) wanted a piece of him.
So throwing an arm over his shoulder or wrapping an arm around his waist or inserting his presence into Katsuki’s space to scare the would-be admire away is met by grouching from Katsuki himself, who takes Eijirou’s motives the wrong way.
Eijirou doesn’t mind, he’s well used to Katsuki’s antics and all the yelling tends to run the admirer off anyways.
The problem is that it doesn’t always work.
Katsuki has a habit of attracting strong bull-headed people. The kind of people that don’t get scared by his snarls and his abrasive attitude. The kind of people that look at that as a challenge .
Which means, when Eijirou comes to run them off, they aren’t afraid to stare him down. Tell him to force them to go. These people don’t care that Katsuki is taken, only that they might get to fulfill whatever fantasy it is that they want.
And that, the fact that Eijirou knows that they don’t care for Katsuki in the way the rest of them do, is what makes Eijirou seethe more than anything.
It had caused some early fights between the two of them (and any other partner that had stepped in) but Eijirou likes to think they found a nice way to compromise.
~
Smoke and ash curl in the sky and Katsuki stands in the rubble, looking like a fucking god, painted in the light of a golden sun and the fires that are lit behind him.
Sometimes, when Eijirou sees Katsuki like this, he just wants to bend the other over and show just how devoted to this explosive blond he is.
Unfortunately for Eijirou, he’s not the only one. A few heroes (newer to the Pro Heroe scene if he remembers correctly) have glided towards Katsuki. Even though they look like they’re just talking, Eijirou can see the way they sway their hips or how they try to put their hands on Katsuki or how they lean in close to get him to stare down into their chest area.
Ejirou growls at that and decides that’s enough. He marches over, putting on his brightest smile and muscles in between everyone. “Great work, Kat,” he says while throwing an arm over Katsuki’s shoulder.
Coincidentally pulling Katsuki’s strap to the side and revealing the large bite mark there.
He sees the Heroes staring, and he fights to keep his smug grin down.
~
Eijirou has always been a bitey sort of person. Even as a child, before his quirk sharpened his teeth, he had a fascination with biting everything he could get his hands on.
As he grew, the urge to bite did too. And as he began to date, the urge to bite turned towards the more adult side.
Some of his partners couldn’t handle it. Mezo, Momo, and Shoto didn’t particularly like him bringing his urges into the bedroom.
Others like Izuku, Ochako, and Mina loved to indulge with him.
But it’s Katsuki that he really lets himself go with.
Katsuki, even if the other won’t admit it, loves to be bitten. Eijirou doesn’t need words, just the arch of a back and dilating eyes. So Eijirou bites him, as much as he can. Around his nipples and on each shoulder, down his stomach and on the meaty part of his thighs.
It doesn’t even have to be in the bed. Katsuki could be cooking and Eijirou will just walk in, wrap his arms around Katsuki’s waist and start gnawing on his shoulder.
Katsuki has never said a word so he assumes Katsuki doesn’t mind. The others had found it a bit weird at first, walking in to stop and stare at them or jokingly call Eijirou a dog and Katsuki his chew toy.
Both just waved it off, they just went one as if it was normal.
Which is why Katsuki never picks up on Eijirou’s other motives for suddenly placing the bites in easily seen places. Or at least in places that Eijirou could easily reveal.
~
They’re out for drinks, Mina, Ochako, Kyouka, Eijirou and Katsuki, when an older man walks up to them. He gives them all a friendly grin and then tells them that as thanks for all the work they do, he’ll pay for the next round.
While winking at Katsuki.
Eijirou has to silently fume because the man is buying them a round and he doesn’t want to seem ungrateful. So instead, he smiles, says thanks and tells Katsuki that he should go help carry them. Katsuki grumbles a bit but agrees as it had been his turn to get them a round anyways.
And when he stands, Eijirou “accidentally” flips Katsuki’s shirt up enough to show his abs, which the man’s eyes drift to.
As well as the four large bite marks placed there.
The man’s eyes widen, darting around. The others are too busy talking among themselves. But Eijirou isn’t. Eijirou meets his eyes.
And he grins. Showing off his very sharp teeth. Teeth that match that of the bite marks.
The man’s face turns very red.
Katsuki follows him to the bar, but returns by himself.
“Where did the fan go?” Eijirou asks, hoping that his smugness doesn’t come through his voice.
Katsuki shrugs. “Said he got a text and needed to go. Which, who cares. Free drinks, right?”
“Right.”
~
“Fuck,” Katsuki curses.
Eijirou doesn’t tell him to watch his language, his mouth too full of skin as he bites down. Hard.
Katsuki is pressed against a building, his dress shirt pulled off the shoulder to allow Eijirou to mark up the skin there. Eijirou doesn’t care that they’re at some rich man’s house, that they’re supposed to be entertaining people, doesn’t care that they’re in expensive clothes.
All he cares about is that Katsuki has looked like a snack since he first stepped out of his room and that everyone downstairs have been eyeing him because they know it too.
Katsuki trembles as Eijirou finally lets go, kissing his way to Katsuki’s other shoulder.
Then he bites down again.
He’s pretty sure his hands-on Katsuki’s waist is the only thing keeping him upright. Again, Eijirou lets go and kisses his way to a new spot.
He continues to do so several more times, getting Katsuki marked up as much as possible. When he finally pulls back, it’s to stare into Katsuki’s pretty teary eyes. His eyes drift down to the way Katsuki’s lips wobble. He doesn’t resist, leans down to give those plush lips a slow kiss, taking his time.
It takes Katsuki a moment, but then he’s kissing back.
Eventually, they pull apart. Katsuki finally seems to get his bearings back as he tries to reset his clothes. Eijirou keeps how please he is at getting the always cool and put together Katsuki Bakugou out of sorts but judging by the light kick Katsuki gives him, he doesn’t isn’t doing it as well as he thought.
Not that Eijirou cares. Let the world see how much they are tangled up together.
Sticking his arm out, eyes glittering, he offers Katsuki a sharp tooth smile. “Shall we head inside?”
Katsuki huffs, but Eijirou sees the way a smile slips onto his lips. “Yeah, whatever. You owe me some food.”
“Of course, Katsuki.”
If Katsuki doesn’t notice the bite marks high on his neck, then Eijirou surely isn’t going to tell him.