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Heat Stroke

Summary:

Bakugou's heat comes earlier than expected. Havoc ensues.

Notes:

i've been reading abo todobaku and one of them left me very high and dry so this is my shot at a/b/o, also idk what to call a/b/o so i just referred to them as sexuality + they're not actually wolves they just have a/b/o sexualities idk this the first time i'm actually writing a/b/o. anyways, happy reading~

(See the end of the work for more notes.)

Work Text:

Most of the students in Class 1-A are betas, including their homeroom teacher. So no one really notices when any of the three omegas are close to their heat, or when the five alphas are close to their rut. The school has strict guidelines about these things too; suppressants are to be taken for both alphas and omegas at all times, special absence permissions can be taken for heats and ruts. Iit is rare for people with quirks to be anything other than betas, so there's rarely trouble. But sometimes mother nature decides to break rules.

Unlike most omegas with big egos, Bakugou has no shame about his sexuality. In fact, he's more than proud to be an omega and still kick ass, very eager to prove his strength and break the stereotype regarding omegas as weaklings. But he's also very careful, he makes sure to take his suppressants diligently, makes sure not to stick around any of the alphas when his heat or their ruts are close, takes his heat leave a day or two before his heat is due. Bakugou is smart, cares highly about his reputation and image, always on guard.

But things don't always turn out the way he plans, and he can never fully foresee every possibility.

He doesn't know why it happens. Maybe it's because he's been hanging with the alphas too much. He's sparred against Uraraka and Tokoyami not once but twice this week, and he's been spending more time than usual with Kirishima as well. They've been hanging out in his room almost every evening, if not they've been studying at the ground floor along with their friends, occasionally with Yaoyorozu, probably the one with the strongest alpha, tutoring them.

But it's not any of these people that set him off, maybe their alpha pheremones riled him up sure, but the final blow comes from someone else completely different.

He's been feeling a little more tired than usual, which is a tell-tale sign of his heat drawing close, and he was planning to take his heat permission at the end of the day, but mother nature beats him to it.

He's teamed up with Todoroki and Kirishima for a rescue mission. They're in the earthquake area, and they are to save Asui, Iida, and Ojiro. The ground keeps shaking, and Bakugou's heart is beating oddly, as though he has a cardiac problem. It is bothering him, distracting him, he hates it. He's never once thought about his heat actually breaking in the middle of class, so he interprets it as yet another sign of his heat being close. Nothing he can't handle, nothing he hasn't gambled on before, and he won each time. But today is the day he loses.

He was distracted with his body acting weird, resulting in him not noticing some pieces falling off of a building and right on top of him. They're not very big per se, but they could still crush him, so Todoroki who is right by his side takes the initiative, grabs him by the wrist and pulls him away.

That sets him off.

"FUCK!"

Within seconds he topples down,

"FUCK, FUCK, SHIT, FUCK--"

Bakugou grabs onto the nearest thing his hand can reach, which happens to be Todoroki's pants.

"Bakug--"

"FUCKING HELL, GOD FUCKING NO!"

He falls on his knees, clutching onto Todoroki's pants for dear life.

"Katsuki--"

"SHUT UP!"

Bakugou snarls. He must have grabbed onto Todoroki's left leg, because the skin under his hand is hot, and oh, God, he wants to touch. His pheremones start pumping out of his skin the more he sweats, and then he hears his companion take a sniff, instinctively most probably.

"This smell... Katsuki... Are you--"

"SHUT THE FUCK UP ICYHOT!"

Bakugou growls again, but it may be too late. His pheremones have reached the alpha's nostrils already, and Todoroki stills. The scent of the alpha is very faint because of the suppressants, but it starts to grow stronger as Bakugou's heat spreads across his body. His stomach churns and he finally lets go of Todoroki, falling on the floor on his knees and curling up into himself.

"You're in heat."

Todoroki states the obvious, probably just voicing out his surprise.

"NO FUCKING SHIT, SHERLOCK!"

Bakugou snaps again, more aggressive because of his fresh heat and because of the pheromones coming from the alpha nearby. He's lost contact with his surroundings, the rescue mission threwn out of the window, there's just the spasms in his groin. And God, this heat hurts like hell. He's always been careful, made sure to never have an alpha nearby, but this? This is a first time, and it is intense.

"Katsuki,"

"FUCK THE FUCK OFF HALF AND HALF!"

Bakugou growls again. He can't move, just lying on the ground, helpless and in pain, shaking. Suddenly, there's a hand on his shoulder.

"Katsuki,"

Todoroki's voice repeats. It's not his cool, calm, and collected monotone, but instead his voice is raspy, throaty. Shit. Looks like Bakugou's suppressant are not enough to cover up the smell of his heat. Todoroki's grip on his shoulder tightens.

"Get up, Katsuki."

He says, he swallows so loudly that Bakugou hears it through all the noise of the earthquake scene.

"DO I LOOK LIKE I CAN GET UP, SHITHEAD?"

Bakugou grumbles again. Then Todoroki grabs him more firmly, almost possesively, and with great force pulls him up.

"FUCKING STOP!"

Bakugou tries to protest. Because he's not good enough to stand on his feet, and the only thing he can lean on right now is a fucking alpha. This is a nightmare, it really is.

"Shit--"

He stumbles, trying to find his balance but it's too hard. Pain jolts through his groin again and he has to grip onto Todoroki's arms for support, who pulls him in without thinking.

This is not good. Bakugou raises his head, and makes eye contact with Todoroki, whose pupils are blown and eyes defocused. He's so close to Todoroki's exposed neck, and it's also not good, it's where his alpha scent is the strongest, and Bakugou finds himself leaning into him.

"Damn it..."

He hisses, voice breaking. Which snaps Todoroki out of his daze.

"Kirishima!"

Todoroki yells suddenly. He's gripping on Bakugou's shoulders, squeezing so hard that he's probably going to leave bruises, trying to keep him away from his body. Meanwhile Bakugou has mindlessly started to rub his crotch agains Todoroki's leg, like a cat, except in heat.

Kirishima comes with the rescued Iida by his side. Bakugou has started to pant against Todoroki's neck, and Todoroki is barely holding onto his sanity as Bakugou moans curses into the tiny gap between them.

"What's going on?"

Kirishima says, Iida pretending to have a broken leg is hanging onto his shoulder. It's quiet for a moment, then Kirishima's eyebrows furrow.

"What the hell is this smell?"

Todoroki has his nails pressed against Bakugou's shoulders, almost breaking skin, which turns out to be a bad idea because through the scars more pheromones come out. Kirishima's eyebrows shoot up.

"Oh no!"

He says suddenly, quickly squeezing his nose with his fingers. Iida, the beta, just stands there, confused.

"What's going on? Am I supposed to be smelling something?"

"Dude I'mma need to borrow your helmet real quick."

Kirishima says, and Iida quickly hands him the helmet without questioning.

"What's going on?"

Iida repeats,

"Are you fucking stupid?"

Bakugou snarls in response, and Todoroki throws his head back, squeezes his eyes shut. It's becoming too much for him to handle, especially with his rut close.

"Kirishima, you need to hold me back."

Todoroki manages to say through gritted teeth, Kirishima mumbles out a 'yikes', then turns to Iida.

"Iida, can you grab Bakugou and take him to Thirteen? He's in heat, and we're both alphas, so we can't really do that. Besides, you're fast."

Kirishima explains. He's helped Koda when his heat broke abruptly as well, he knows what to do. Realizing the seriousness of the situation, Iida snaps out of injured rescuee mode and instantly gets back to class president mode, a serious expression setting on his face. With that Kirishima carefully approaches Todoroki.

"I'm going to grab you. Try not to fight back."

"Can't promise, sorry."

Todoroki grunts. Meanwhile Bakugou is quietly suffering, because even though he can't really smell Kirishima there are two alphas by his side now, and he's never felt so overwhelmed before. He knows better than to open his mouth and risk letting out a moan that can set Todoroki off too.

Kirishima very carefully pushes Bakugou's hands off of Todoroki's arms, even though he makes contact with the raging omega he keeps telling himself that the omega in question is his best friend, and that he is a gentleman, but also that omega is seriously his bestfriend and it's so not cool to lust over his best friend. But Bakugou still needs to hold onto something, and Todoroki still has a death grip on the omega.

"Todoroki."

Kirishima warns, because Todoroki starts showing signs of agression, and he tries to fight Kirishima's hold when Bakugou's hands find their way on Kirishima's wrists. They can't hold this for long.

"Iida!"

Kirishima calls out. Like the wind Iida grabs Bakugou by his slim waist and Turbo's his way out of the area, Bakugou snarling at him through the process. At the same time Kirishima hardens his skin and tries to obstruct Todoroki from using his powers. It's a lot of effort, they literally fight for dominance and he does get burnt at some point, but it's nothing lethal.

When he finally lets Todoroki go, the other alpha growls at him, both hands sparking with his odd quirk. Todoroki pins himself to the ground with his ice, he's panting, sweating. It takes Kirishima a moment to get it, but when it dawns on him he huffs out a short 'yikes'.

Bakugou's heat has triggered Todoroki's rut.

"YO! I NEED HELP HERE!"

Kirishima yells, because he's already exhausted, and he sure as hell can't handle a raging alpha by himself like this.

-

Aizawa ends up being the one taking care of both of the sexually frustrated students, as he's the homeroom teacher.

First he erases Todoroki's quirk and keeps him away with his scarf as he signs Bakugou's heat leave permission papers, then he calls the class president to help the student get to his room in one piece. After Iida returns Todoroki has calmed down enough to not go feral at his homeroom teacher, besides opening the windows and the doors helps him calm down as it clears away the omega's scent.

After that Aizawa signs Todoroki's rut leave and calls the vice president Yaoyorozu, who also happens to have a stronger alpha than Todoroki and can easily handle him, to escort Todoroki to his own respective room.

He needs a raise.

-

Bakugou is louder than Todoroki expected him to be.

He's on the floor above, and the walls aren't exactly rock solid, he can clearly hear the omega's pathetic whines and moans as he pleasures himself. Todoroki knows if he tries he can probably smell him too. And it's only making his own problems worse.

At last he gives up, takes one for the team and just calls Bakugou. He doesn't expect him to pick up, but Bakugou actually does.

"What the fuck do you want?"

He's breathy, shamelessly panting into the speaker. Todoroki grips onto his own hair and takes deep breaths to calm himself down.

"You're too loud."

He states simply, hears Bakugou tch in return.

"Got a fucking problem with that, Icyhot? Just put on fucking earphones or something."

"I'm in a rut. Do you seriously expect me to not hear a wailing omega?"

"I'M NOT FUCKING WAILING!"

Todoroki huffs in annoyance. This is stupid. They're both horny and needy, and this can be over a lot quickly if they can just... Work together.

"Katsuki,"

"Since when you fucking call me by my first fucking name?"

Todoroki rolls his eyes. He has one hand palming at the bulge inside his pants, it's an asshole move but Bakugou's voice and breathing is doing it for him.

"Katsuki,"

He repeats again, asserting a bit of his alpha voice. That shuts Bakugou up.

"Wanna help each other out?"

The other end of the line is quiet for so long that Todoroki has to check whether he's hung up. He hasn't.

"What."

Is the reply. Todoroki clears his throat.

"You want to be knotted, I have a knot. Let's help each other out."

"Fucking hell, you're fucking asking me for sex?"

"It's not like that!"

Todoroki protests. Bakugou laughs, sarcastic, it humiliates Todoroki a little.

"What makes you think I would let you fuck me?"

Bakugou asks bluntly, and Todoroki frowns. Two can play at that game.

"You were literally rutting against me today, were you not?"

Bakugou snarls, and Todoroki grins. Touché.

"That's because of the fucking heat, what the fuck do you expect me to do?"

"Well you're not the only one going through that!"

It's quiet again. Then Bakugou clears his throat.

"You think it'd help?"

"Yes."

Todoroki confirms easily. It's basic logic,  when omegas in heat and alphas in rut have sex their periods end sooner, plus they go through less pain. Bakugou huffs.

"I'm only agreeing because I pity you."

Bakugou mumbles, Todoroki swallows.

"I'll be there in a minute."

"Bring snacks."

With that Bakugou hangs up. Todoroki grabs a handful of snacks and his water bottle and dashes out of his room in an instant. He's seen the way Bakugou was overwhelmed with the heat, he's heard his whines and pleas too, he knows his attitude is just a façade.

It is okay though, Todoroki thinks, because he's here now.

-

Todoroki is very timid as he approaches the door, maybe this is a bad idea. They're not exactly friends, but that doesn't mean things can't get awkward between them. It also doesn't mean things will get awkward for sure. He hesitates. The omega's scent is right under his nose, so close no matter how far. Todoroki clears his throat and knocks on the door.

"Katsuki, I'm coming in."

He announces, waits for a reply but it doesn't come. But then he hears a stiffled moan, and he takes it as is permission to enter. Todoroki presses on the door handle, pushes it open and steps inside.

Bakugou has made himself a pillow nest, and burried himself inside. Todoroki almost drops his snacks, because Bakugou is also lying on his front with his plump butt sticking out, he's wearing his boxers and a baggy black shirt but his dick is probably out, Todoroki is pinned to his spot as he watches Bakugou rut against the pillows.

"You gonna fucking come here or what?"

He snarls, even more tempered with his heat. Todoroki puts the snacks and drinks on the study desk and rushes to the bed. The omega's strong caramel scent has mixed with the smell of nitroglycerin, it sends shivers down Todoroki's spine. He climbs on the bed and pushes Bakugou's sweaty hair away from his face, swallows hard.

"Touch me already!"

Bakugou whines, and although Todoroki is the alpha he finds himself easily complying. First he presses his right hand on Bakugou's back, the omega hisses with the cool sensational feeling. Todoroki caresses up Bakugou's spine, then all the way down to his lower back. He leans closer, intoxicated with the scent, crawls on top of Bakugou's body and presses his face into the crook of his neck as he presses down on the dimples at the bottom of his spine with his thumbs.

That sends Bakugou into overdrive, and Todoroki lets him grind his ass against his crotch as he comes spilling into the pillow nest with a loud moan and curses spilling down his lips.

"Rest now."

Todoroki orders him, massages his dimples with his thumbs and Bakugou whines, Todoroki can still make out the snarl underneath.

"My turn,"

He says, Bakugou grunts him his consent.

Todoroki grinds his own clothed crotch against Bakugou's ass, he knows he'll come easily, because the omega underneath him is so eager, his pheremones are intense and Todoroki has his face pressed flush against the center of his scent. Bakugou instinctively rocks back against him, letting out soft whines as Todoroki noses at his neck, occasionally his lips brush against his skin as well and it drives Bakugou insane.

At last Todoroki presses himself tight and presses a kiss into Bakugou's neck, then comes inside his boxers, his hips twitching occasionally and slapping against Bakugou's ass. He muffles his grunts and moans against the omega's hot skin, and faintly hears Bakugou cursing at him.

He pulls away and throws himself next to Bakugou on the pillow nest after the high clears out. They're both panting, pupils blown. Todoroki hums.

"You taste sweet."

He says, and Bakugou visibly blushes.

"WHAT THE FUCK DOES IT HAVE TO DO WITH ANY FUCKING THING, HOT'N COLD, WHAT THE FUCK!?"

Todoroki just chuckles in response, raises his hand and lazily gives Bakugou head pats. The other party snarls, but he's too tired to actually do anything to stop it. Todoroki closes his eyes, breathes in the omega's scent.

"Wanna taste more of you."

He says suddenly. Bakugou hisses, but he's already hard.

"Whatever. Just get me off."

He snarls. Oh Todoroki can do that alright.

He gets on his knees, pulls Bakugou's shirt up to his nape, caresses his back muscles with his hands.

"Your waist is so tiny."

He mumbles, more to himself. He's always thought it was Bakugou's baggy pants and gigantic hand grenades that made his waist look slim, but no it was actually that thin. Todoroki experimentally cups Bakugou's waist, it fits right inside his palm, and Bakugou moans.

"You liked that huh?"

He mumbles again,

"Shut the fuck up."

Bakugou says, it comes out more like a moan but Todoroki doesn't comment on it.

He presses his hand harder, feeling Bakugou's slim waist up, his own body is shaking with desire and he's barely holding himself back from jumping at Bakugou. He hates his ruts with a great passion, so he's learned his way around maintaining control, but with Bakugou's omega scent filling his nostrils he's faltering. He squeezes his eyes shut, pressing his hips against Bakugou's to calm himself down.

"I want to eat you up."

He groans, and earns a moan from the omega below.

"What the fuck are you waiting for then?"

That's the final drop, Todoroki lets go, and with a growl dives into Bakugou's neck.

He's grinding his crotch against Bakugou's ass as the omega humps his respective pillows, whining and panting. Todoroki laps at Bakugou's neck, pressing open mouthed kisses as he explores the sensitive skin. He tastes so good, and Todoroki's mouth waters. Before he has the chance to stop himself he's sucking, leaving red marks all over the place. He tries to hold himself back, and he's about to pull away when Bakugou lets out a loud, throaty moan.

"FUCK, Shouto, mark me the fuck up!"

Todoroki slams his hips against Bakugou's, making the bed shake, and Bakugou grips on the pillows.

"You sure?"

"FUCKING DO IT, FUCK!"

Todoroki doesn't need to be told twice. He mouths at where Bakugou's scent is the strongest, at the pulse point, and then he starts sucking, saliva trickling down Bakugou's neck as he drools over the orgasmic taste. He can almost taste the blooming hickey, and when he gets his teeth on his skin both of them climax at the same time, Bakugou pushing his hips against Todoroki and Todoroki rutting right back, chest pressed against Bakugou's exposed back.

"FUCK! FUCK! FUCK! OH GOD, FUCK!"

Bakugou chants as he comes spilling, Todoroki mindlessly laps along Bakugou's neck, he's drooling a lot.

They take a moment to catch their breaths, Todoroki lets his arms rest on the bed and gives his weight on Bakugou's body. The omega seems to be completely okay with it, despite absolutely detesting physical contact normally.

"Shit, it's so much easier when somebody else does all the goddamn work."

Bakugou admits, grinning, Todoroki doesn't quite have the energy to reply yet. He mouths at Bakugou's neck gently as he waits for the orgasm high to be over, and Bakugou easily submits, which is very uncharacteristic of him. But heats and ruts don't acknowledge simple characteristic features, it seems.

Todoroki checks the durability of his legs, then forces himself to get up, waddling to the study desk, come leaking down his thighs from his boxer.

"Turn over,"

He orders the omega,

"I'm gonna give you water."

"Stop ordering me the fuck around you half-and-half fucking bastard!"

Bakugou hisses again, Todoroki doesn't say anything in return. He does hear Bakugou shifting in his pillow nest though.

Todoroki grabs their water bottles and brings them to bed, his hands are shaking, and so are Bakugou's, but it's nothing they can't handle. They sit back and hydrate themselves quietly. Then Todoroki puts the bottles aside.

He eyes Bakugou up, his eyebrows shoot up when his eyes land on the hickey on his neck.

"What is it? Never seen a fucking neck before?"

Todoroki swallows, he leans closer, grabs Bakugou's neck and presses his thumb on the hickey. The omega's eyes lose their focus immediately, his lips parting and head tipping to the side to expose his neck further. Todoroki swallows again. They're both still rock hard, and visibly trembling from lust, and also still very clothed.

Todoroki leans in again, grabbing onto the headboard with one hand as he traps Bakugou between the bed and his body. Their faces are one breath apart, and Todoroki huffs out a ragged breath, feels Bakugou grip on his thigh. Then he presses his lips against Bakugou's cheek, tracing down to his neck.

He settles on Bakugou's lap and buries his face into his neck again. Kissing, and sucking, and mouthing at him, tasting him, devouring him. He can't even think straight anymore, dizzy from the omega's scent. The same can be said about Bakugou as well, who's desperately grinding his flashed dick against Todoroki's clothed, wet crotch.

Todoroki plants hickeys along Bakugou's neck, can't get enough, drooling all over him. And Bakugou moans so pliantly under him, lets Todoroki have his way with him and enjoys every moment of it.

Soon enough Bakugou's neck is decorated with hickies, slick from Todoroki's drool, and when Todoroki trails a curious hand between them and grabs Bakugou's dick he immediately comes again, thrusting into Todoroki's palm. Todoroki palms himself through it and finds his release as well, but of course it's not enough for either of them yet.

They stay, panting and messy, cheeks flushed. Todoroki snuggles into Bakugou's neck, breathing his scent as he catches his breath.

"Your hand is on my dick, Icyhot."

Bakugou says,

"Want me to pull away?"

Todoroki shoots back. Bakugou is quiet, but Todoroki already knows the answer. He's not surprised when Bakugou grumbles a low 'keep it'. Todoroki rewards his kind behaviour with a kiss on the neck, which is kind of more of a reward for himself.

"For a straight guy you sure fucking do look like you're enjoying fucking around with me."

Bakugou says suddenly, Todoroki smirks.

"Who said I was straight?"

Bakugou blinks once, twice, thrice. Then his angry frown is back, he's played himself, and now he's just pissed off.

"Should've fucking guessed when you asked if I was down to fuck."

Todoroki rolls his eyes.

"Just because I'm not straight doesn't mean I've been thirsting for you, Bakugou. You're an omega, I'm an alpha. That's what this is."

He's blunt, but Bakugou doesn't seem hurt or startled. In fact he seems glad that they've drawn the lines.

"Then be of fucking use, alpha scum."

He snarls suddenly, grabbing at Todoroki's crotch. Todoroki hisses, which pleases Bakugou a lot.

"You don't smell so bad yourself, you know."

Bakugou purrs, voice raspy as he noses at Todoroki's neck. His hands pull out Todoroki's sorry dick from his boxers, and he starts lapping at Todoroki's neck as he lazily jerks him.

Todoroki closes his eyes, pressing his lips together in a thin line, both hands on Bakugou's slim waist as he keeps himself under control. Bakugou presses his fingertips on Todoroki's knot, examines it, makes Todoroki whine.

"Huh, so that's how knots look like."

Bakugou mumbles, Todoroki cracks one eye open.

"Really? You've never seen it when alphas are dressing?"

"Do I look like I ogle alphas, motherfucker?"

Todoroki rolls his eyes.

"That's not what I meant."

Bakugou blushes again, and he looks so cute that Todoroki has to close his eyes and bite his lip in order not to voice that thought. He knows that it will not be appreciated.

"I stay away from alphas when they're close to their rut. So no, I've never once seen a knot."

Todoroki hums.

"Wanna play with it?"

"You're fucking bold as fuck, Icyhot, I'll give you that."

Todoroki ignores him, classic Bakugou, nothing he's not used to. Instead he leans back, pushing his hips close to Bakugou's, and watches him explore the knot.

Obviously he's ridiculously affected from the omega's touch, he's been handling it alright though, but then Bakugou presses his own dick against his, and Todoroki throws his head back and moans. Bakugou fits both dicks inside his palm and jerks them off, their precomes mix together as their dicks brush and slide against one another. And it's hot.

Todoroki's eyes are wide open, he takes Bakugou's concentrated expression in, picks up the little whines he lets out, they all go straight to his raging boner.

"Shouto..."

Bakugou moans, and that does it. Todoroki falls on the bed on his back as come spurts out of his dick all over Bakugou's lap.

"Katsuki!"

He calls out, and the omega follows suit, jerking faster and rocking his hips through their orgasms.

"FUCKING HELL!"

They fall back on their respective sides on the pillow nest, and Bakugou lets go of their dicks. They breathe, in and out.

"We should open the windows to clear the air, you smell too much."

"If you have a fucking problem you can fuck yourself off, Icyhot."

Bakugou snarls, Todoroki shakes his head, gasping.

"If I keep breathing you like this I'm never gonna get out of this rut."

He admits, and Bakugou chuckles again, surprised but also sarcastic.

"Some fucking alpha you are."

Todoroki keeps lying there, then Bakugou gets up, waddles to the other side of the room and opens the windows, grabs two packets of chips and comes back.

"Contain your fucking self."

He warns. Todoroki nods. They can't fuck with the windows open, because God, they're loud.

Bakugou tosses him one of the chips bags and sits back on his nest. Todoroki can sense and smell Bakugou's heat rising again, but he's tired. And so is Bakugou. So they take a quick snack break, not speaking.

-

After the break their sexual desires are too much to handle, and Todoroki finds himself on top of Bakugou, breathing hot through his nose.

"Let me fuck you."

He snarls, drooling again because of Bakugou's scent. The needy omega has a frown, but he nods.

"Fuck me."

Todoroki dives into Bakugou's neck again, hands curled into the pillows, gripping for dear life as he grinds his dick against Bakugou's, the omega pliantly rocking back. Bakugou has his hands on Todoroki's back, fisting at his top.

"Fucking take this shit off! FUCK!"

Bakugou growls, so sexually frustrated. Todoroki has to pull away from Bakugou's throat to let the omega snatch his top off, and before he can do anything Bakugou has his entire face pressed against Todoroki's neck, and he moans out loud.

"FUCK! Fucking touch me!"

Todoroki's body moves before his mind registers Bakugou's words. He grabs their dicks and starts jerking them off, and then Bakugou's mouth is everywhere. Lapping and mouthing at Todoroki's neck, throat, shoulders, collarbones; anywhere it can reach.

It's no surprise they both come in seconds, and this time Bakugou moans louder than he did, carefree as he fully expresses his pleasure.

"Fuck, Shouto, fuck! AHH!"

Todoroki has never been so talkative, bedroom included, but Bakugou's pleasure noises makes him want to talk too.

"Katsuki..."

He moans out, eyes rolling back with the orgasm and the omega's tongue still wandering on his body.

Todoroki has to switch their positions because his legs give out, and Bakugou doesn't look like he's going to stop eating him anytime soon. So he lies on his back, shirtless and his dick out, and catches his breath, panting.

Bakugou on the other hand looks crazed, not in a boom boom explosions way, but in a different way.

His hands run all over Todoroki's torso, pressing against his abs and his chest, cupping his packs, caressing down his biceps, triceps. And he moans all the way, pheremones pumping like crazy, Todoroki grabs onto his own hair to keep himself in control.

"Fucking shit, IcyHot, you taste fucking good alright."

Bakugou moans, lapping down Todoroki's collarbones to his chest, plays with his hardened nipples with his tongue. Todoroki grabs onto Bakugou's hips and presses him against his dick, ruts into Bakugou's thighs as Bakugou takes his sweet time licking at his chest. It's a lot, feels too good.

They come again, Bakugou is as loud as ever, cursing as he spills. And this time Todoroki can't control himself; he grabs Bakugou from the back of his head and pulls him down for a kiss.

Bakugou is shocked to say the least, but the orgasm eases him into it, and soon enough they're making out. Todoroki drinks up Bakugou's moans.

Todoroki has been drooling too much because of the omega's scent, but Bakugou doesn't seem to mind as he licks into Todoroki's mouth. Todoroki runs his fingers through Bakugou's hair, tugs on his hair strands. And they're making out, limbs tangled and hips on hips.

What started as a reaction to an overwhelming orgasm ends up getting them over the edge again, and they keep grinding their crotches together until they tip over said edge. And then there's nothing but Bakugou's moans, so desperate as he comes, sobbing into Todoroki's open mouth.

"Fuck, Shouto! Fuck, Fuck, Fuck, Shouto, Oh Fuck!"

Todoroki can't help but grab onto a fistful of Bakugou's blonde hair, and kiss him harder. It's more sloppy now as they ride out their orgasms, and soon afterwards they're out of energy. Bakugou lets his body drop on Todoroki's chest, pulls away from his lips to tuck his face into the crook of his neck.

"You drool too fucking much."

Bakugou comments as they catch their breaths, Todoroki closes his eyes.

"But I forgive you, Halfie. At least I don't get cramps each time I come."

"I told you, alphas and omegas work well together in heat."

Bakugou snorts, it comes out more like a snarl but Todoroki knows how to interpret his gremlin sounds at this point.

"Fuck you."

"You will."

Todoroki promises. The other curses him out, something along the lines of 'fucking die'.

They stay still for a while, trying their best not to give in to their sex drive for the sake of getting some rest, but it's just so hard.

Bakugou is the first to move. His body can't handle not being touched by the alpha nearby, and he just starts rollings his hips shallowly against Todoroki's crotch. Todoroki groans.

"You're so needy."

"I'm in fucking heat! Either do something about it or--"

"I know, I know." 

"Don't fucking cut me off!"

Bakugou snarls. Todoroki sighs, one of his hands trail down Bakugou's slim waist to his thick ass, he grabs, gives it an experimental squeeze. Bakugou's moan is a solid sign he's doing good, so he does it again.

"Mmm, yeah, that's more fucking like it."

Todoroki keeps playing with Bakugou's ass when an idea crosses his mind.

"Katsuki,"

"What?"

"Have you ever fingered yourself?"

Bakugou blushes again, and Todoroki presses his nails into his fists in order not to call him cute.

"Of course I did, I'm a fucking omega, how the fuck do you think I spend my heats?"

Todoroki's expression changes, and Bakugou notices it. That clearly turns him on. Bakugou smirks.

"What do you think made me moan so loud, IcyHot? Loud enough to fuck you up, even."

Todoroki is the one who moans this time, and Bakugou looks pretty satisfied. He gets his torso off Todoroki's, and sits on his lap, angling his clothed ass against Todoroki's dick.

"Finger me."

He demands, and Todoroki chokes on his drool. Bakugou raises his eyebrows, a sadistic smile plays on his lips.

"Or I will."

Without giving Todoroki time to react Bakugou trails his own hands down his thighs then back up, pushes Todoroki's hands off his butt and tugs his boxers down to his knees. Todoroki groans, he takes the initiative to Bakugou's boxers completely off, holds him steady by his slim waist with both of his hands. Bakugou's face twists with pleasure, Todoroki sighs, nuzzling into Bakugou's cheek.

"Do it."

He murmurs, lips brushing against Bakugou's skin, sending shivers down his spine. Bakugou curses,

"Don't fucking tell me what the fuck to do, half and half."

Bakugou leans his torso against Todoroki's, arches his back, Todoroki's hooded eyes are on him, takes in the view of the slim waist curving into handfuls of ass. Then Bakugou's fingers are trailing down his hips and slipping between his butt cheeks. His omega slick is already trickling down thigs, and he's been playing with himself all day, so the slide is easy for the first two fingers, when he tries to press in a third he stumbles, losing his balance because of the pleasure. That's where Todoroki comes in handy, he helps Bakugou lie on his chest, the omega snuggles into the alpha's neck in an instant, scent making his eyes lose their focus. Todoroki wraps his arms around him, holds him steady, eyes on his hands.

They don't speak. Todoroki watches how Bakugou fingers himself, pushing his fingers all the way to the knuckle and curling them inside, scissoring himself open. He wants to try. So he trails a hand down Bakugou's hips, feeling him up as he goes. When he slides a finger down his crack Bakugou gasps, opens his eyes and looks at him.

"Can I?"

Todoroki asks, and Bakugou nods. He keeps his own fingers there, and Todoroki experimentally thrusts in his index finger, Bakugou moans his loudest, gripping onto Todoroki's shoulder with his free hand.

"Oh FUCK!"

He curses. Soon enough one finger turns to two and two turns to three, Bakugou removes his own fingers and grips onto Todoroki's shoulders intead, muffling his moans and curses into the crook of his neck as the other takes him apart. Their dicks are angled, rubbing together as Bakugou circles his hips.

"Fucking hell, Shouto!"

Bakugou groans, he manages to get one hand between them to rub Todoroki off too. They come again, staining Bakugou's shirt. Bakugou clings onto Todoroki's shoulder, cursing and moaning as he rides out the orgasm, Todoroki has his head thrown back, a groan ripping through his throat. Bakugou licks along his Adam's apple lazily as he comes down from his high.

"Wanna knot you, Katsuki."

Todoroki pants, and Bakugou can't take it anymore. He takes off his own shirt and throws it away, he's completely naked. Nothing Todoroki hasn't seen before in the changing rooms, but it's different this time. Todoroki hisses, runs his hands down Bakugou's torso, caressing him, feeling him up. Bakugou pulls down Todoroki's come-stained boxers and Todoroki kicks them completely off. This is it.

"Fuck me!"

Bakugou growls, presses his ass against Todoroki's dick.

"Fuck me, fucking fuck me!"

Todoroki nods, grabs him from the chin and pulls him in, noses brushing.

"Take it."

"Don't fucking order me around!"

Bakugou hisses again, grabs Todoroki's dick and presses the tip against his slick hole, they both gasp.

"Come here."

Bakugou grunts, presses his lips against Todoroki's before he slowly eases himself on his dick. It's barely above average, but it's more than enough, does the job. Bakugou curses and moans as the dick slides in, but he stops at the knot, keeping it out for the moment.

"Katsuki--"

"I'll take it later, shut up!"

Bakugou cuts him off. He kisses Todoroki again, and he has to stay still a bit to adjust, clenching around Todoroki's length as he does.

"Fuck, Shouto, I'm going to fucking-- Ohhh--"

Bakugou comes, solely because of having Todoroki's length almost all the way inside, and his body instinctively rides out the orgasm, circling his hips. His walls are clenched, and he's so loud, moaning out Todoroki's name like it's the only word he knows. It's no surprise Todoroki practically explodes inside him, come filling Bakugou's hole and trickling out of it shortly afters.

"Katsuki, ah!"

Todoroki has his head thrown back again, his orgasm pulls another orgasm out of the omega, has Bakugou pathetically thrashing on his dick, moaning his name and some made up curse words, mostly the word fuck over and over and over again.

Bakugou collapses on Todoroki's chest, pupils blown and his tongue sticking out. They're breathless, over sensitive, and shaking everywhere. Todoroki manages to raise a hand to caress down Bakugou's back.

"Rest."

He barely says, Bakugou nods. There's he feels so good, too good, but he has to resist the urge to continue. He doubts his body can handle it without a break.

"Don't pull out."

Bakugou warns, Todoroki barely nods. Leaning back on the pillows by the bedpost and closing his eyes. He doesn't even have the energy to pull out anyway.

-

They've started kissing, somehow. They don't even know who initiated it, their lips somehow found one another. It's so overwhelming, they soon find themselves losing focus, not really kissing but more moaning against each other's mouths. Todoroki is drooling again, Bakugou laps at it as they make out. He has a hand in Todoroki's hair, tugging at it when the pleasure is too much, and he starts borderline screaming when Todoroki starts chasing his high, thrusting into him faster, hitting all the sweet spots Bakugou's fingers never could reach.

"Ah, ahh fuck, fucking hell! Damn it, fuck, ah fuck, yeah, fuck me, fuck, Shouto! Ah, fuck, Shouto, fuck!"

Bakugou's babbling nonsense at this point, and Todoroki is so affected by him, he moans along, gripping onto Bakugou's hips and helps him move them to meet with his thrusts. They easily come again, so much louder but also feeling so much better.

"Ah! Gonna knot you!"

Todoroki yells,

"FUCKING KNOT ME!"

Bakugou moans back. Todoroki pulls out a bit, come flowing out of Bakugou's slick hole, then with one deep thrust he pushes his dick back inside, knot included.

The tip of his dick touches Bakugou's prostate, and his knot is so sensitive, they come together in an instant, tears at the pits of their eyes as Todoroki's knot fully settles inside. Bakugou sobs out curses, voice so beautifully broken, Todoroki holds onto his hair to keep himself under control, chanting out Bakugou's name like a mantra without being aware of doing so.

"I feel... So..."

"Yeah..."

Bakugou falls on his chest again when they can stop moving, both bodies trembling. The heat and the rut is getting better, giving telltale signs of going away, albeit for a short time. The promise is exciting, being free of the extreme sexual desire earlier than expected.

"Told you so."

Todoroki manages to get out.

"Shut up."

Bakugou snarls again. Todoroki faintly smiles, carding his twitching fingers through Bakugou's hair. They only have to pull through this one final round, and then it'll be over. At least for a while. If they're lucky they might not get heated until after breakfast, which means approximately 12 hours of resting time.

If getting knotted equals to twelve hours of relief Bakugou can for sure get used to letting IcyHot sticking it in him every once in a month. And Todoroki doesn't look like he's complaining in any way. Good enough team work.

"I'm fucking tired."

Bakugou snarls, Todoroki nods.

"One more and we can rest for good."

Bakugou grumbles out something in his gremlin language but Todoroki isn't in his right mind to decode the message at the moment. 

"Half of your dick is colder."

Bakugou says abruptly, and if Todoroki wasn't so tired he would've laughed, but instead he just huffs out a smile.

"How does the knot feel?"

"Fuck off with the dirty talk."

"I'm just curious."

Bakugou snarls in response, but then he mumbles an 'it's nice' and Todoroki can take that as a sufficient answer.

Todoroki's legs feel a bit better, and Bakugou looks like he can barely hold himself up even though he won't openly admit it. So Todoroki takes the initiative to switch their positions again, lying Bakugou on his back on the pillow nest and kneeling on top of him. He brushes Bakugou's hair away from his face but quickly withdraws his hand when Bakugou tries to bite him. No aftercare needed it seems. Todoroki decides to get to work.

"Gonna start moving."

He warns, Bakugou hisses again in the gremlin language, Todoroki takes it as the go signal. Which happens to be the right guess.

It's harder to move with his knot inside since he doesn't have much space left to push-and-pull, but they manage to work it. So Todoroki opts for doing fast thrusts just to create a sensation, and it's just what he has to be doing to have Bakugou thrashing on the nest.

"Fuck, fuck, fucking fuck--"

"I actually am."

Todoroki grabs Bakugou's hands and intertwines their fingers together, sticking his palms into Bakugou's explosive ones and pressing them on the pillows, uses Bakugou's body to weigh his own as he thrusts.

They're so worn out, for some reason this one lasts longer than the rest, which is something they should've guessed. Todoroki's sweat drips down from his hair strands to Bakugou's forehead, they're panting, breaths fogging up the space inbetween. And they're both so focused, waiting for the moment when the orgasm draws close and they can let go.

Todoroki has his eyes closed, and his fucked out face is the view Bakugou has in his blurry vision. He licks his lips.

"Kiss me."

Bakugou says, and Todoroki easily complies. The kissing quickens the process, the tongue-on-tongue action going straight to their dicks and soon enough they're just moaning into each other's mouths.

"Kahh, Katsuki--"

Todoroki moans, Bakugou licks into his mouth, just as desperate.

"Yeah, fuck, come on!"

Heat pools in Todoroki's groin, he's so tired, but let's his libido take control. His hips snap against Bakugou's, frantically rutting as he chases his orgasm. Bakugou rips his hands away from his grip, and soon enough his nails are on Todoroki's back, scratching down his skin as he moans louder and louder, throatier.

"Yeah fuck yeah Shouto, fuck! Ah, ah, ah, fuck!"

"Katsuki!"

The pain triggers him on the harder Bakugou scratches him down, their moans mixing in with the sound of skin slapping skin and the bed creaking as it rocks. They're both so close, but also on their last bits of energy.

This is the Plus Ultra Orgasm.

"Katsuki, I'm gonna--"

"FUCKING GIVE IT TO ME, OH FUCK!"

Todoroki groans as he comes, and his vision goes white as if he just got a real hard punch landed right between the eyes.

He's disassociated from his body, he barely registers his hips snapping as he keeps thrusting into Bakugou, riding out his orgasm, and Bakugou's walls clenching around his dissolving knot as he also reaches his own climax, calling out Shouto, Shouto, Shouto and fuck, fuck, fuck. He's probably calling out for him too, can feel his lips moving. Good thing they're the only ones in the dormitories.

Todoroki is still thrusting when he gains his mind back, a lot slower but still unable to stop. And Bakugou has tears running down hos cheeks, whining from the over-sensitivity, slightly thrashing around.

"Katsuki..."

Todoroki finally manages to stop thrusting and carefully pulls out, his arms are shaking but his knot has disappeared. He death drops on Bakugou's chest, and even though the other has no strength left in his body to push him off he still snarls.

"Let me rest."

Todoroki murmurs, voice muffled into Bakugou's breasts.

"Fuck you."

Bakugou pants out,

"You just did."

Todoroki shoots back. No matter how tired he is Bakugou still growls something in response, but it remains unintelligible because his mouth can't move properly.

"I'm sleeping."

Todoroki announces. He knows Bakugou will protest, because that's his entire personality, but he can't care less. Somewhere between Bakugou's snarling and his sweet caramel scent, Todoroki dozes off.

-

Kirishima has spent the rest of his day worrying about Bakugou, because that's what he does. So when he's done with school, the first thing he does is visiting Bakugou's room instead of washing up like he normally does. He's worried the omega might not have eaten enough, or what if he's dehydrated? He knocks on the door.

"Oi, Katsuki."

No response. He knocks again.

"Katsuki? Are you awake?"

Again, no response. He debates. What if he walks in on something inappropriate? But then again, heats are normal, it's no big deal. His friend's wellbeing is more important.

"Ya, Katsuki, I'm coming in alright?"

Still no response. Kirishima is pretty sure his friend is asleep, he carefully presses down the handle and steps inside the room. And the moment he enters he's hit with the smell of the omega's heat. He pinches his nose, frowning. He knows how Bakugou smells, like caramel, but something else also smells in here, and Kirishima is confused.

He takes a few steps inside the dark room, there are snack packets on the study desk, which means Bakugou has eaten something, at least, which is good. Kirishima makes a beeline for the window, avoiding looking at the bed lest he sees something he doesn't want to see. He hangs out of the window when he opens it completely, breathing in the fresh air deeply.

When he turn back, pinching his nose, he then dares to look towards the bed's general direction.

"Ehh?"

Confusion hits him like a truck. Because there's somebody else in Bakugou's bed! Is this the wrong room? Did Kirishima accidentally walked into the wrong room? That'd be weird. But then again, the room does smell like Bakugou, so it has to be Bakugou's room.

When Kirishima looks carefully he makes out the half white-half red hair, and Bakugou's blonde locks peeping from underneath the blanket. He almost yelps, whole face turning red in embarrassment. He dashes to the door, when he opens it the light coming from the hallway illuminates the duo in the bed, and Kirishima can clearly see discarded clothes, and Bakugou's hand on Todoroki's back.

They look kind of cute together. Kirishima smirks, closes the door behind himself as he leaves them be. He's so going to tease Bakugou about this later.

 

Notes:

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