Chapter Text
The first time it happens, they’re both two years into their pro careers and arguing in a deserted hallway of the Hero Association building after a mission. Bakugou’s even still wearing half of his hero costume and Shouto has no idea when he got rid of his gauntlets. He must have dropped them somewhere along with Shouto's hope of Bakugou dropping a topic.
Bakugou is furious at Shouto for butting into his mission. Or more accurately, Bakugou is throwing a temper tantrum like he’s a six-year-old. Which, you know, a six-year-old at least knows when they’re wrong and can be civil about it. Meanwhile Shouto is very slowly but surely losing his cool, no pun intended.
“I could have fucking handled it, you half ‘n half bastard!” Bakugou yells, grabbing onto the front of Shouto’s shirt, free hand itching to punch him in the face. Somehow, he's been on the receiving end of this particular threatening motion of BAkugou's more than he'd like to admit.
The whole thing is bullshit, of course. Bakugou was fighting two other villains when a third one showed up behind him. And yes, Shouto hadn’t been assigned to the mission. And yes, Bakugou could have probably handled the third villain. These are all facts, sure.
“You think you’re fucking better than me? The hell were you even doing there, huh?!” Bakugou shouts, now shaking him back and forth in anger as Shouto does his best to remain passive. Maybe a lack of response will deter the other enough to let go of his shirt before he blasts a hole in it.
The thing is the third villain had been holding a knife as he charged at Bakugou. There had been a very real posibility of Bakugou getting hurt and subsequentially being in a lot more trouble if the villain had actually managed to stab him. And Shouto can’t help it if he stumbled onto the scene by accident and he sure as hell is not apologizing for helping Bakugou not get stabbed. Even if he's kind of regretting that right now.
“I’m fucking talking to you, you fuck!”
Okay, maybe Shouto is losing his cool faster than he anticipated. Maybe after years of having Bakugou throw tantrums whenever something doesn’t go his way, Shouto has finally reached a boiling point, still no pun intended.
“The least you could do is apologize for pulling that shit! Seriously-“
Shouto grabs onto the wrist of the hand that’s clenching his shirt between its fingers. There’s smoke coming from Bakugou’s palm and Shouto is not planning on having to throw his shirt in the bin just because Bakugou can't control his quirk when he's being dramatic. Bakugou quiets for a split second before he restarts his efforts of breaking the sound barrier by being the loudest he can possibly be with more cursing than Shouto deems necessary.
It’s honestly a miracle no one has heard them yet. Then again, if someone had, everyone knows to not interrupt an angry Bakugou. It’s just common sense. Which, unlike Bakugou, most people actually have. In fact, it's more likely they've already evacuated the floor they're currently on.
“You want to fight?! Is that it?! Because I swear I’ll kick your ass into-“
“Shut the fuck up, you son of a bitch!”
Bakugou's eyes widen comically, he looks positively shocked. Shouto doesn’t curse. He doesn’t flip his shit. This is the first time that Bakugou has ever witnessed the other like this. It’s strangely exhilarating seeing anything else than his normal passive expression on his face. Shouto knows he's never been overly polite. Bakugou has called him an asshole more than once and Shouto has to admit that about 50% of the time he had had a point. Yet the reaction is a bit much even if he normally doesn't curse in front of the other.
“What you think you’re the only person entitled to cursing? I swear to fuck, Bakugou, you entitled piece of shit. If you want to be stabbed in the back so bad, I’ll do it right now. Fuck off, you’re such an asshole.”
The hand in Shouto’s shirt loosens its grip for a second, in which Bakugou is uncharacteristically quiet, before it grabs hold of the fabric again with a vengeance. Something in Bakugou’s eyes has changed and Shouto is sure he’s going to get punched for real this time.
What happens next, however, takes Shouto completely by surprise. He feels his brain short-circuiting before his mind goes blank. Instead of a fist rearranging his face, there’s a mouth crashing into his.
There are lips on his lips. Bakugou’s lips. He’s sure the world stops spinning for a second.
The kiss is almost delicate, contemplating. It is as if Bakugou’s afraid of how Shouto is going to react. Which is an adjective he never thought he would ever use where Bakugou is concerned.
He must take too long to actually do anything. Because all of a sudden Bakugou is biting his bottom lip hard enough to draw blood. It feels more like a challenge than anything else. But it is also more familiar than the earlier softness and something he thinks he can actually deal with.
His lip stings, but the sharpness of the sudden pain also reboots Shouto’s brain enough to get with the program.
There’s the taste of his own blood when he opens his mouth for Bakugou to deepen the kiss, before his senses are overwhelmed by the feel of the other’s tongue against his. It’s weird but not unpleasant. Shouto hopes that Bakugou can’t hear the way his heart is beating at an impossibly fast rate right now or feel just how excited he’s getting from Bakugou kissing him.
He thinks he should probably loosen the grip he has on Bakugou’s right wrist, except that he has no idea what to do with his hands after that. And maybe Bakugou has a secondary quirk that gives him the ability to read minds, because as Shouto is fumbling with his hands, Bakugou grabs a hold of them.
His hands are guided to Bakugou’s hips as the man backs up into the wall behind him, pulling Shouto with him so their bodies press against each other perfectly. Shouto can hear the small thud of Bakugou’s head hitting the wall. And if Shouto feels a hint of satisfaction at the tiny groan of pain leaving Bakugou, then it’s because he’s still kind of pissed.
Where Bakugou was hesitant before, he’s now on the edge of too intense. Apparently Bakugou is as aggressive and almost over-confident with kissing as anything else in life. He can kind of respect that. Especially if he’s the one on the receiving end of the kissing. Something he's still trying to wrap his reeling mind around.
A leg wraps itself around his, pulling him impossibly closer and also directing his attention to the hard-on that Bakugou is also definitely sporting. It’s pressing into his thigh and Shouto thinks he’s going to die. It's not the heroic death he sometimes pictures, but it seems a thousand times better. Not only because it will surely serve to piss Endeavour off in the best possible way if that were to be his fate.
Bakugou’s pulling away from the kiss then, looking at Shouto with what can only be described as a self-satisfied smug grin. Shouto kind of wants to punch him, but also kind of wants them to just keep kissing. There's a thought he never thought he'd have.
“Fuck, Icyhot,” Bakugou states, as if Shouto has any idea what he means by that.
His hands are being moved to Bakugou’s ass and Shouto can’t help but squeeze. Bakugou seems to approve as he proceeds to wrap both his legs around Shouto’s waist so that his entire weight is being supported by Shouto and the wall he’s leaning on.
“That’s more like it.” It’s almost a purr, but as far as Shouto knows there’s no one in Bakugou’s family who has a feline quirk.
Shouto thinks it’s kind of unfair that he’s still so articulate, when he can’t even think of a reply.
He is shot another smug grin, before Bakugou occupies his mouth with Shouto’s neck. When his mouth finds the nape of Shouto’s neck and starts sucking, Shouto’s hips jerk forward of their own volition.
“Fuck.” It’s whispered into his neck, but Shouto hears it clearly. It’s followed by a hard bite that triggers another roll of his hips. There’s a groan this time, which of course goes straight to his dick.
Shouto is quick to get the hint. Starting a steady rhythm. It’s not perfect in any way. The angle is slightly off and they’re both still wearing clothes. Shouto would much rather have Bakugou naked right now, but they are also still in a very public hallway. Anyone could see them at any moment. Logically he knows this whole thing is not a good idea. He’ll be damned if he stops now though.
Bakugou lets out a moan stopping his train of thought. All coherent thinking goes out the window at the sound.
“Faster.”
Another bite. At his jaw this time. Not as hard as the previous one, but a warning nonetheless.
Shouto slides his hands from Bakugou’s ass towards his legs, hitching him up slightly higher. The new angle increases the amount of friction and Shouto is sure he hears Bakugou’s breath hitch. It’s his time to be smug.
Bakugou grabs his jaw then, forcing their mouths together again. It seems more desperate than before and Shouto thinks it means that the other must be close. There’s less actual kissing at this point and more panting into his mouth and what Shouto thinks is Bakugou stifling another moan.
“Fuck.”
He presses his mouth to Bakugou’s harder at that, forcing his head to thump back against the wall. Bakugou’s hold on his jaw is close to painful, but it is also one of the best things Shouto has ever felt, so he’s not complaining.
He’s confused when Bakugou pushes his face away, but then Bakugou is biting down on his shoulder hard as his body jerks. It lasts for a few seconds as Shouto continues rocking his hips into Bakugou’s and he is sure Bakugou is ripping his shirt just with his teeth.
When Bakugou lets go of his shoulder he leans his head back to rest against the wall. His hair is damp with sweat, clinging to his forehead and sticking up in weird places. His eyes are half-lidded and still glossed over. He looks like he has just experienced nirvana and is entirely too self-satisfied about it. Shouto should not think it is as hot as he does, but he comes embarrassingly fast at the sight of a blissed out Bakugou. It earns him a smug grin.
It takes a minute for Shouto to come to, but when he does he slowly lets Bakugou’s legs back down. And he is suddenly very aware of just where they are. Still inside the Hero’s Association building. In the middle of a random hallway. A hallway accessible to basically everyone. They’re not even trying to hide in a corner.
“Stop freaking out, Halfie,” Bakugou tells him, sounding way more relaxed than Shouto thinks he’s ever heard him sound.
Shouto feels the need to wipe that smug grin off his face, but he isn’t sure how to exactly proceed right now. He kind of wants to kiss the other but the urge to punch him is just as strong. And he has no idea if either would be acceptable.
Bakugou detaches himself from the wall, looking like his legs aren’t fully working yet, but Shouto is sure as hell not going to say anything and risk getting punched in the face.
“I’m going to go shower,” he announces, walking off after giving Shouto a pat on the shoulder as a means of saying bye. “See you around.”
“Ah. Yeah.” Shouto’s voice cracks as he looks at Bakugou’s back disappearing around the corner. His eyes do not drift to Bakugou’s ass. Even if he has to admit that it looks really nice.
All of a sudden his pants feel really uncomfortable. They’re wet and sticky and overall it’s just gross. Bakugou had the right idea. He definitely feels like he needs a shower… And maybe a rock to crawl under. What the hell had just happened?
The trip back to his apartment is probably the stealthiest mission he has ever pulled off. There’s no way he wants to run into anyone he knows when there’s a huge wet splotch on his crotch. And since Bakugou headed off to the showers in the Hero Association’s building, he has to actually go home for a shower. Because he has no idea how to properly face Bakugou.
He makes a beeline for the bathroom as soon as he sets foot in his apartment. Wasting no time, he immediately turns on the shower to let the water heat up while he undresses. Once he sees his reflection in the mirror, however, he pauses.
His lips are swollen, red and puffy. There’s a wound on his bottom lip from where Bakugou bit him that stings when he touches it. But the worst of it all is definitely his neck and the assortment of hickeys and bitemarks littering his skin. He moves his shirt to the side to examine his shoulder. Sure enough, there’s another bitemark that has Shouto blushing.
He can perfectly picture the way Bakugou looked with his head against the wall, leaning back, throat exposed, completely blissed out. He kind of regrets not biting Bakugou back now, seeing the damage the other did to his neck. Then again, he’s not sure if that wouldn’t have earned him a blast to the face if he tried.
Trying to get the image out of his head, he undresses. Throwing his clothes in the hamper and praying that the stains will actually wash out. Without his shirt he has a clearer view of his shoulder. It looks possibly even worse now.
How is he ever going to cover this up?
His mind is straying to Bakugou again.
The way he sounds when he moans. The way he kisses. All things that he has never ever thought of concerning Bakugou.
Sure he can admit the other is hot, he has a pair of working eyes after all. But Bakugou is also brash, self-confident to a fault and aggressive. Shouto has no idea how those qualities factor into the way he thinks he might kind of like the way Bakugou looks when he’s turned on.
As he hops in the shower, he can feel his dick getting hard again. Which is great. Just what he needs. He’s not even sure what Bakugou thinks of the whole thing. Was it a one time deal? Are they friends? Fuck buddies? One night stands? What is Bakugou even expecting Shouto to do now?
One thing’s for sure: his dick doesn’t really care.
He turns the temperature knob the other way and takes a decidedly cold shower.
He is so fucked.