Archive of Our Own ^beta

This is a bad idea. 

Shouta follows the scent blindly. He follows it all the way from the storage facility, through the empty streets and winding alleys, without stopping to call for backup. At first, he follows it quietly. 

Then two hooded heads snap up in his direction, and he follows it running . 

He launches himself after the two thieves, jumping from rooftop to rooftop and swinging himself around with his capture weapon. When the figures split, he zeroes in on the shorter one without hesitation.

It's a bad call. He's losing sight of the other target, and he's alone. He has no plan, no backup, and no idea which one of them is carrying the stolen goods, and he knows this is all a colossal lapse in judgment. 

Ordinarily, Shouta would never make such a mistake. Would never lose his head like this. 

So what's different this time? 

"Midoriya."

Shouta drops from the rooftop into the empty alley, and stares into the eyes of the student they all lost. 

"It's you, isn't it?" 

No. 

The student they expelled . 

Slowly, the girl turns. She drops her hood, and even in the dark of a moonless night, he would know her. Anywhere, he would know her. "...It's been a while, sensei" Midoriya Izuku replies, a bead of sweat rolling down her temple. 

Erasure fizzles out. His hair falls back down on his shoulders. There's no need for his Quirk with her--there never was. "So it's true."

He pushes his goggles up, wanting to look her straight in the eye. After two years of search, he won't settle for anything less.

Midoriya swallows. But she doesn't back down. "Yes" she declares, with no trace of shame in her voice. "It is."

Shouta’s thankful for the darkness. For the chance to hide his heart breaking behind the shadows. "I see."

Because there were rumors, but he didn't believe them. Because there were signs, but he prayed until now that he'd misinterpreted them. 

Because his missing student is working with the League of Villains , and there's nothing he can do to deny it anymore. 

There is conflict on Midoriya's face. She's twisting her hands. Two years ago, in his class, she was always twisting her hands, too. "You should leave, sensei."

Distantly, he notices that she isn't carrying the loot with her. The little black bag with the HPSC lab's emblem doesn't seem to be anywhere on her person. If he goes now, perhaps, he can still catch up with her accomplice. 

"I can't do that" he says instead, hands turning into fists at his sides. 

For a long moment, they're at a standstill. For a long moment, neither one of them is moving, or speaking, or breathing. 

Then Midoriya's jaw sets, and Shouta drops his weight to the floor. 

He swings his capture tape like a lasso along the ground, aiming for her ankles. But Midoriya's reacting before he's even thrown it, jumping right out of the way. 

Fast . 

He intercepts her, but not fast enough. As soon as his left hand reaches forward to yank the bundle of cloth her way, she's rolling to the opposite side of the alley with a focused, calculating gaze. 

She knows my moves , Shouta realizes, watching her evade capture again and again. No, she studied them. 

It throws him. Not by much, but enough to make a difference. If there was an advantage Shouta always had, as an underground hero, it was that the enemy never knew what to expect from him. Couldn't prepare for him, not in any way that mattered. 

He remembers, now, how Midoriya was the only one to recognize him. How she spoke on and on about his hero persona, his fighting style, his strengths. His weaknesses. 

But Shouta knows her, too. Shouta trained her. 

"Midoriya" he calls in between hits and misses, trying to appeal to her reason. To whatever part of his student's left in her. "Don't do this. Come quietly, and I will help you."

Midoriya fixes him with a hard stare. "I don't need your help, sensei."

"You don't know what you're doing" Shouta insists, gripping his capture weapon tight. 

Midoriya's muscles go taut, ready to dodge. "I think I do."

Shouta swings the bandages forward. "Goddammit, Midoriya" he growls, feeling more helpless than he has in a long, long time, "you're a kid. You have no idea where this road will lead if you keep playing villain--" 

"Like I was playing hero?" 

Shouta stops mid-swing. Midoriya takes advantage to go on the offensive, kicking a loose brick his way and forcing him to parry. The brick breaks in half against his elbow, sending a jolt of pain through his old injury. 

"That's what you all thought I was doing, right?" she presses, circling him with care in her step and rage on her brow. "The Quirkless kid, trying to play at saving people."

"That's not--" 

"The useless, pathetic little girl who thought she could make it at UA." Each word is incandescent, a rain of fiery arrows that take Shouta completely by surprise. When she lunges, he almost takes the hit like a first-day sidekick, parrying just in time. Pain shoots up his arm, the one he still instinctively puts forward despite its weakness, and oh, doesn't she know it. The next hit is a feint, a punch turning into a kick at the last second. "The stubborn omega who needed to learn her limits, to be put in her place-- "

Shouta grabs her ankle and spins her around. She lands badly, but not badly enough to crash to the ground and make herself easy prey. 

"Is that what you think we thought of you?" Shouta asks, fury and heartbreak seeping through his voice in equal measure.

But Midoriya doesn't reply. Just fixes him with a stare that would crush harder hearts than his.  

The fight isn't even, not by a long shot. As soon as Shouta decides to get serious, it will be over. But, for some reason, he can't bring himself to put an end to it. Not yet. 

She's grown. She's grown so much. 

He watches her movements with fascination. No, with pride . She's learned to feint too well to ignore, and so, when she closes in to strike, Shouta is careful. At one point, it dawns on him that, maybe, he isn't the only one going easy. 

That hunch becomes a certainty when Midoriya's speed increases suddenly, proving that she'd been holding back, if only a little. Shouta isn't fast enough to switch from teaching gears to pro gears--force of habit; even here, even now, he can't help but think of Midoriya as his student; to teach, and not to subdue--and he ends up sprawled on his back in the dirt, his capture weapon flying into a heap a few feet away. 

"Just a kid, huh?" the omega pants, keeping him pinned to the ground with her hands and knees. "Look at me, sensei. Am I still the kid you once knew?" 

No.

Shouta twists her leg and reverses their positions, knocking a pained yelp out of the girl's lungs. Even if her clothes dwarf her--borrowed clothes, probably, to better mask her scent--it's obvious: Midoriya Izuku isn't a kid anymore. She has the build of an adult, and the scent of an adult, and the firepower to pack a punch no kid in his current class ever could. Not without a Quirk to back them up. 

"Maybe not" he concedes, keeping her pinned close. Not underestimating her anymore. His hair falls around them like a curtain, shrouding them in a deeper night. "But you're still a kid to me."

Midoriya's scent curls strangely. Something ominous prickles at the back of Shouta’s exposed neck. "Yeah?" 

Then, without warning, the omega surges up, short canines digging sharply into Shouta’s scent gland. 

It's a second. The alpha inside him roars, a mixture of surprise, outrage, and something else he can't name pushing instinct to the forefront of Shouta’s mind. A single, overpowering instinct. 

Bite back.

He only gets a second to rip her off and fling himself to his feet, stumbling backwards, just in time to prevent his alpha from having its way. 

Midoriya rises, wiping the blood from her mouth with the back of her sleeve. Shouta brings his hand to the gland, eyes wide in disbelief. 

"I didn't teach you that" he says, and the omega grins . 

"I've had other teachers since you."

And then, they start circling each other again, like wolves around a bonfire. 

Shouta scoops up his capture weapon. Midoriya watches him closely, catching the moment before his strike. 

"You really should go, sensei" she says, knocking over a garbage can to trap his bandages underneath. Taking advantage of the environment, like he taught her, this time. Shouta tugs them back instantly, and whirls around to block the lid hurtling his way like a disc. 

She's breathing hard now. It's clear that it's taking her everything just to keep up, and in a battle of endurance, she won't win. No matter how good she's become, an alpha's stamina are simply higher. Conversely, an omega's best shot at closing a fight is with their speed, early on. 

Which is why, even now that their positions are reversed, his back against the brick wall and Midoriya's to the mouth of the alley, she doesn't try to turn tail and run. She knows she wouldn't get far. 

Once again, they are at a standstill. 

"Like I said" Shouta replies, gathering the capture weapon back in his hands, "I can't do that." 

"Please" Midoriya murmurs. 

Neither one of them moves. 

"Why?" the teacher asks.

But, whatever he expected from his former student's expression, he did not expect it to turn pleading. 

"I don't want to see you get hurt."

It's a second. A whiff of a scent that belongs to neither one of them, but still, in a way, familiar. By the time Shouta’s head whips around, it's too late. 

Shit. I fucked up. 

Red eyes greet him where the wall at his back used to be, a cloud of dust dancing around them like the ashes of the dead.

"Yo, Eraser."

And then he's dodging, ducking away from the reach of five deadly fingers for the split second it takes his Quirk to activate. 

Shigaraki's hand makes contact. 

Nothing happens. 

"Boo" she huffs. "You're no fun."

He's swinging his capture weapon before he knows it. But the villain is fast , and she sidesteps easily, a manic glint in her eyes that promises nothing but disaster. At her side, a pouch dangles from a hoop of her belt, contents clinking as she moves. 

It's been two years since he fought Shigaraki Tomura. Two years since USJ. Two years, since the day her Noumu almost killed him.

Shouta looks into her blood-red eyes, and phantom pain shoots through his arm, as cold as the touch of death. 

"C'mon" she taunts, making a come-hither motion. "Let's play again." A red smirk, and she circles, placing herself in front of Midoriya with one arm outstretched. "Just you and me."

And then she's charging. 

"Are we playing tag?" she laughs when Shouta dodges, wary of her claws even without her Quirk to back them up. He's learned the hard way just what Shigaraki Tomura is capable of. "'Cause you know I'm good at that." Another swipe, and her voice drops low, dripping like honey. "I'll destroy you, Eraser."

Her moves are faster; her lunges, sharper. Everything about her fighting style is more : more polished, more precise, more lethal. But one thing hasn't changed, and that's the unabashed glee on her face. 

He didn't realize how much he'd been waiting for this rematch until now. 

Behind his capture weapon, the corner of Shouta’s mouth twitches, mirroring hers. "I'd like to see you try."

His opponent flows like water at his sides, swiping with the bloodthirst of a Siberian tiger. Shouta’s earlier restraint is nowhere to be seen: he meets her blow for blow, going straight for the jugular, the same way she does. 

" Ah , I missed this" the villain half-sighs, half-grins in satisfaction when Shouta manages to pin her to a wall. "You're always so cool, Eraser."

"What did you say to her?" the teacher growls, unable to contain himself. His grip on her wrists grows tighter. "What did you say to her to convince her to join you?" 

Shigaraki regards him with a faint, knowing smirk. "Come closer, and I'll tell you."

Against his better judgment, he does. He keeps his eyes open, trained on the side of her head, and slowly leans in. 

She's warm. Warm, and soft, and a hundred things she shouldn't be in the arms of an enemy. Shouta forces himself to ignore the pleased hum in her throat, or the sweetness of her pheromones curling purposely around him. Once he's gotten as close to her as he dares, Shigaraki's nose twitches, as if picking up a particular scent in the crook of his neck. For a second, her own scent flares in a way he cannot quite decipher. 

"I said" she murmurs in the end, sickly sweet, breath ghosting along his earlobe like a caress, "I'd never turn her away."

Then she's flashing her fangs and aiming for the mark on his neck, and Shouta no longer has to wonder who Midoriya's other teacher was. 

Collect yourself, Shouta commands his wavering heart as he leaps away. Because the truth of her words hurts like hell, but he can't let the pain blind him to his duty. He can't let the siren song of Shigaraki's taunts crawl under his skin and unravel it from within. Stop letting her get to you. 

But she was always skilled at that--touching things he never wanted her to reach. 

They keep trading blows. Every time his hits connect, he baptizes the bruise that will bloom there. Payback, for a thousand broken things. 

For decaying my arm. For attacking All Might. For terrorizing my kids. 

For stealing my student. 

He's almost swept up in it. Her deadly waltz. 

But then the steel ornaments on her pouch glint, and Shouta remembers why he's here in the first place. 

"Tomura, the bag!" 

Midoriya's scream throws a wrench in Shouta’s plans. The villain notices him reaching for the pouch, and her eyes go dark. "Huh-uh. No cheating."

She scoops the pouch up with her pinky. But the string hangs low, and Shouta manages to knock the whole thing out of her hand, sending it flying in the air above them. 

The bag opens slightly. The contents spill. 

Or rather, one content. 

A marble? Shouta frowns. 

"Look out!" 

It's a second. Shigaraki tries to propel herself backwards, biting out a curse, but Shouta doesn't let her. He snaps up the villain's ankle with his capture weapon, yanking her close again, just as the marble is about to drop back to the ground. 

And then, Midoriya's there, cushioning the hit as the tiny thing explodes in a cloud of heat. 

"Well" Shigaraki declares, staring at her drenched clothes, "this sucks."

Breathing hard against the wall, Shouta glares at her. Intensely. "What. The hell. Was in there?" 

"How should I know?" the villain shrugs, shooting him an annoyed look, like he's the one who dumped them into this mess. "Sugar, spice and everything nice?" 

"It was your weapon."

"Wasn't my Quirk" she liquidates him, a little breathless herself, fisting the hem of her soggy shirt. When it doesn't disintegrate, she shoots him a glare. "Seriously?" 

A low rumble starts brewing in Shouta’s throat. Shigaraki scoffs. "Fine, be that way." She crosses her arms at the bottom of her shirt and quickly pulls it off, and then moves on to her Quirk-soaked pants and underwear, all under Shouta’s red-flashing gaze. He can't take his eyes off her--literally. If he does, he has a feeling Shigaraki will kill him where he stands. 

Of course, her lack of modesty isn't making things any easier. 

The whole concept of Shouta’s struggle seems to amuse her. "Why, Eraser, I didn't take you for such a peeping Tom."

" What ." Shouta starts growling again, struggling to keep himself upright. " The hell ." His head is spinning, his legs unsteady like the ground is alive and snaking under his feet. Slowly, he slides down to the alley floor. " Was in there? " 

"Quirk… 143."

The voice is tiny. Weak. Shouta’s fist clenches against his every instinct to turn into the direction of the sound.

"Are you alright, Midoriya?" he grits, and Shigaraki's face twists into something between a grin and a snarl. 

"For your sake, Eraser" she says, walking around him in uncertain steps, "I hope you didn't hurt her."

I would never , his mind replies before he can catch himself. 

Midoriya's a villain now. It's his job to hurt her. 

Still, he can't suppress the relief that comes with being able to follow Shigaraki's movements, ones that lead him right to the girl on the ground. 

"Damn, Freckles" the villain says, dropping to a crouch. She lifts the girl's chin up, thumb stroking along her cheekbone. "You really took the worst of it, huh?" 

"What was it?" Shouta asks again, his voice gaining a desperate edge. Midoriya looks dazed, eyes glassy and clouded over, chest heaving like she's having trouble sucking oxygen inside. Her skin is flushed and clammy, like the flimsy hoodie around her frame is enough to make her overheat. Her pheromones are letting out confused signals of distress, too, making it harder for Shouta to breathe. It's difficult for his alpha not to react to that--an omega in need. 

Get it together. She's your student. 

But another omega is there, too, and her scent makes a wall around Midoriya, locking their pheromones in place. Confining them to the length of the alley. It's astounding, the level of control omegas can exercise on their scents--the very reason alphas are so skilled at picking them up in comparison.

"You really can't guess, Eraser?" the villain taunts, flicking a look in his direction. She's practically turning her back on him--a gesture that makes his blood boil in more ways than one. 

Get. It. Together. 

And he feels like a hair trigger, too--like a gust of wind could send him crumbling in a way he's only too familiar with. 

You really can't guess? 

"No" Shouta lies, the alpha inside him stirring uncomfortably. 

Shigaraki chuckles, leaning closer to the girl, until their noses are brushing. "Well, it can't be helped. You haven't seen her like this before, have you?" 

Of course not , the teacher almost snaps, but the villain's tone gives him pause. Like she's mocking him from a place of superiority.  

Like she has seen Midoriya like this before, and more. 

A growl brews in his chest. But he can't tell if it's an angry one or a possessive one, and so, he smothers it down to the embers. "You're joking. No Quirk like that could be bottled up into pills."

"Can."

Midoriya's voice surprises him. "HPSC… Technology" the omega breathes out, raising her arms obediently for her partner to take off her hoodie. "It's possible. Lots of Quirks… Made into pills." Shigaraki snakes her hand behind her back. "This one's… Lethal--" Shouta only gets a second's warning before the girl's bra is unhooked, leaving his student's top half completely bare. "You need to--" 

"Now" the villain croons, drawing Midoriya closer and running four dangerous fingers through her hair. Then, her hand starts trailing lower. Jugular, collarbone, sternum. "Let's leave something for him to figure out, hm?" 

The alpha inside him snarls . This time, Shouta doesn't quite manage to suppress it. 

Shigaraki's eyes flit to him like red butterflies, an amused glint that makes the corners of her mouth twitch. "Look at that." She turns, another caress on the tips of her fingers. "Think he likes what he sees?" 

Shouta growls in warning, but Midoriya whimpers. "Sensei…" she breathes, squeezing her eyes shut against the growing surges of heat. "He needs help. He needs…" 

"Should I let him call for backup?" the villain asks, and his student pauses. 

"We'll be caught" she says, and an unjustified sting of betrayal burns through Shouta’s heart. 

As if following a silent order, Shigaraki's free hand plunges into his breast pocket. It's sudden enough to make him flinch, to make him blink reflexively for a split second, and in that split second, his entire jacket disintegrates.

Phone included.

"Sorry, Eraser" the villain says, a wolfish, unapologetic grin on her lips. "You heard her. Can't let you tattle on us."

He has never wanted to punch an omega this bad. But his fist refuses to connect with Shigaraki's smug face, closing uselessly at his side instead. 

"Tomura" Midoriya urges, tugging on the villain's wrist. "The Quirk… Sensei, he needs--" 

"Sshh" she coos to her as Shouta grits his teeth, powerless to even lift his arms. "Relax, Freckles. Your teacher's gonna be alright."

"Yeah?" Midoriya whines. 

"Yeah."

"We'll help him?" 

"Of course" the villain croons, returning the teacher's unflinching gaze. "In fact, I think we can all help each other, don't you agree?" 

And, really, there's no risk that Shouta would blink. Right now, his eyes are as wide as saucers. "You can't be serious" he murmurs, terrified by the implications of their exchange. Because this is a heat Quirk , and there's only one way to help with that. Because he's an alpha, alone with two omegas, and one of those omegas is his student--  

"Dead serious, I'm afraid" Shigaraki says sweetly, and Shouta’s heart drops. 

"You--" Shouta snarls, but the villain answers with a rumble from her own throat. Her voice was always too deep, too dangerous to belong to an omega, and now, despite knowing she's not an alpha, Shouta’s own alpha is stunned into silence. 

"Nuh-uh. Don't be a sourwolf." Gently, with her free arm, she lays Midoriya back on the ground. There's a woozy quality to the movement, a subtle reminder that, for all her comparative lucidity, Shigaraki wasn't spared by the Quirk either. "It's not very polite to refuse a devoted student's help, don't you think? After all…" she coos, caressing Midoriya's cheek with the back of her free hand, "You've always been Izuku's favorite teacher in more ways than one."

Whatever words Shouta had for her, in that instant, they all die in his throat. 

" Tomura " Midoriya whines, her face catching on fire too eloquently for the teacher to even consider the villain may be lying. 

Not that it matters. A former student having had--having?--a crush on him doesn't make any of this okay.  

"So you see" the villain murmurs, wrapping five full fingers around Shouta’s ankle. The gesture needs no translation. As soon as you blink, you're mine. "You're not allowed to die, Eraser. Not before I kill you."

Shouta has never felt so furious. At the back of his mind, the thought bubbles up unbidden: Not if I kill you first. 

"Don't worry, sensei" the other girl breathes, struggling to open her eyes. But she does, and she meets his gaze, and there isn't a trace of hesitation there. "We'll help you."

It's taking everything just to keep his alpha inside. In the face of their natures, social hierarchies crumble, and Shouta isn't immune to that either. It doesn't matter that he would never cross a line with a student willingly, because right now, his will is split. Right now, a part of him desperately wants to climb over that line. 

But he grits his teeth, and he steels himself, and he spits out: "No."

For a moment, the villain regards him neutrally. As if weighing the worth of his life. She could jab her fingers in his eyes and splay her other palm flat on his chest, and right now, Shouta would be defenseless. He wonders if the thought has occurred to her yet. 

But Shigaraki simply shrugs, like a bored queen holding court. "Suit yourself" she says, flipping her long hair back. "More for me."

Between the haze of the Quirk, and the tension pulling his nerves all the way taut, Shouta doesn't realize the full implications of the villain's words until he sees her bend over his former student. 

Oh. 

Oh, no. 

"Stop" Shouta calls, trying to put his deepest growl forward.

Shigaraki shoots him an amused glance, dipping even lower.  "I'll stop when she asks me to." Then, with a sway of bare hips that leaves nothing to the imagination: "Feel free to tap in at any time, Eraser."

Shouta swallows. 

"May I?" she asks, voice coarse and sweet like  candy, sliding Midoriya's shorts down, down, down , while Shouta tries his best to train his gaze literally anywhere else. But, with his Quirk active, the task is simply impossible. 

"Please" Midoriya replies, and Shigaraki dips her head between her thighs. 

The second Shigaraki's tongue starts dragging over the fabric of her panties, Midoriya whines , high-pitched and keening. The sound alone is enough for his alpha to rear its ugly head, forcing Shouta to push it down before he can lean into his worst instincts. The villain takes it agonizingly slow, giving just enough to make Midoriya dissolve into a puddle of breathy sighs, hips squirming in frustration under her leader's mouth. 

It's a teasing game, one designed to make the girl go crazy with desire--and not just her, either. The dizzying wave of pheromones is knocking Shouta’s reason to its knees . He fists the sliced fabric of his capture weapon, clenching until his fingers hurt. 

Slowly, the air fills with the lush, meadowy scent of Midoriya Izuku's heat. Shigaraki swirls her tongue in circles--she makes sure to move her head enough for him to imagine everything he can't see, everything he's desperately trying not to see--and Midoriya starts whimpering, knuckles going white in her leader's hair. 

"Tomura" she half-whines, half-urges with a tug on her hair. "Please, I need--" 

Shigaraki makes a purring noise in the crook of her inner thigh. "So impatient. What's your teacher gonna think?" 

She throws a sly little look over her shoulder as she says it, her blood-red gaze meeting Shouta’s. Hooking it. Preventing him from going anywhere else with his mind. As soon as the teacher tries to distance himself from what's happening right in front of his eyes, Shigaraki ropes him right back in, with a squeeze of her hand that reminds him exactly of what the alternative to watching is.

To Midoriya's credit, the remark turns her face about as red as Shouta's. "That's not f- ahh !" the girl yelps at the sharp contact of the villain's teeth with the soft skin of her inner thigh. 

" All is fair" Shigaraki drawls, "in love and war."

And then, before Midoriya can bounce back, she takes the elastic of her panties between her canines and rips them clean off. 

His alpha writhes . 

"Watch closely" she murmurs against Midoriya's naked skin. Her back is still turned, but there's no doubt in Shouta’s mind she's talking to him. "Blink and you'll miss it, Eraser."

The second her tongue dives into the girl's flesh, Shouta almost shuts his eyelids to keep himself sane. 

Get it together. Get it together get it together--

"Good girl. Let him hear you."

And she does.

Shouta’s eyes are starting to burn, but that's the least of his concerns as Midoriya all but writhes under her leader's voracious kisses. She's gasping like she can't breathe, and by god , her teacher can relate to that. It's taking every ounce of his strength, every crumb of self-control, not to let the alpha in him be swept up in the combined heats of the two omegas in front of him. Pliant, willing omegas whose taste must be just as intoxicating as their scents, and it's all Shouta can do not to squeeze his eyes firmly shut to give at least one of his senses respite.

But he can't do that. He can't leave Shigaraki Tomura's Quirk unchecked. 

So, he watches. Ragged and helpless, he watches as Midoriya arches inside Shigaraki's mouth, too far gone for inhibitions and begging her leader to give it to her harder. He watches as the villain's hips sway, naked and inviting, right in front of his eyes. She's dripping, too, and her scent is unbearable. Not as strong as Midoriya's--but sweeter. The kind of sweet that could make you sick, if you had too much of it. 

Shouta kind of wants to test that limit. 

No , he scolds himself. Don't let her get to your head. 

If only it was his head she was getting to. 

"Look, Eraser" Shigaraki coos in a warm, wet murmur. "Look at the girl you turned away." Those words hit him like daggers, each one digging deep into his biggest regret. His biggest failing. "Isn't she beautiful?" 

Yes , his mind answers before he can stop it. Yes, she is. 

" Tomura " Midoriya sighs brokenly, fingers making a fist in the villain's pure white hair. "Oh god, right there, don't stop-- " 

Shigaraki's purr turns into a low, savage rumble in her throat. Her claws elongate, leaving pink streaks all the way down Midoriya's side and scraping around Shouta’s skin. Her scent intensifies, flaring in a possessive aura around the younger omega; her omega. No room for mistakes. 

She's close. Shouta hates that he can tell by her scent alone, but Midoriya is so close he can feel it. He bites the inside of his cheek with his canines, bites down hard until he can taste blood, ignoring the way the mark on his shoulder throbs throbs throbs --

"Let's show your teacher" Shigaraki groans, tightening her five deadly fingers like a noose, "how good you look when you come."

And now, with a sinking sense of dread, Shouta realizes that he's well and truly fucked . Now, Shouta can either die or watch his student's orgasm rip through her. 

He wishes he had chosen death. 

Midoriya Izuku arches with a cry, her body convulsing in pleasure as she calls out her leader's name, and all Shouta can think is: Beautiful . She moans, flooding the area with pheromones, and all Shouta can do is breathe , dick twitching in his pants, alpha clawing at the inner walls of his ribcage to be set free, free to take, to claim--

And then, as the aftershocks make her gasp and quiver, Midoriya whimpers: " Sensei ."

And that. 

That is too much. 

Shouta barely feels himself move. Pulling himself to his knees felt like a whole ordeal before, but now, with a single goal in mind, it only takes a second. 

"Aw fuck-- !" 

It only takes a second, and then he's shoving two fingers deep inside Shigaraki Tomura. 

"This" he growls in the villain's ear, crooking his fingers in a vicious way that makes her sob and whine as his free hand works his pants open, "means nothing ."

A pained smirk. "Always knew you'd be a gentleman, Eraser."

He pulls his fingers out just as roughly as he shoved them in, dragging a gasp out of the omega. Then, without giving her time to adjust to the whiplash of sensations, he yanks her hips towards him and sharply thrusts inside. 

" Fuck--! " Shigaraki bites out, head falling forward on Midoriya's stomach as Shouta grabs the scruff of her neck and harshly bends her over. 

He's vaguely aware of Midoriya's hands rising to card through the villain's hair, stroking her gently as she murmurs quiet words of praise into the top of her head. But he's too lost to listen properly, too lost in the tight, suffocating heat of the omega's body, the scent of her spreading like wildfire through his lungs. And that's how it always is with her, isn't it? One second, Shouta’s master of his thoughts, and the other, Shigaraki's making him lose his goddamn mind . A vexing, infuriating brat. 

Luckily, he's got practice putting brats back in their place. 

"Ahh!" Shigaraki keens, clutching Midoriya's hips like a lifeline. " Fuck , Eraser. Are you trying to- -ahh-- break me…?" 

"I thought that was what you wanted?" Shouta replies, punctuating his words with a particularly ruthless chain of thrusts, even though the opposite is way more likely. That Shigaraki will end up breaking him . 

Slick starts running down the villain's thighs. Whatever quippy reply she was about to give, the hero fucks it straight out of her throat in vowels. " A-Ahh--ngh-- " 

"Sshh" comes a quieter, kinder voice, piercing straight through the fog of Shouta’s frenzy. "You're doing so good, Tomura. Taking it so well, aren't you?" A caress tilts the villain's face up, green eyes gazing warmly down at her. "What a good girl you are. It doesn't hurt, does it?" 

For some reason, the words make his skin prickle. How can Midoriya call any of what Shigaraki has done good ? Even this, right here, right now--how is Shigaraki leading them here a good thing? Breaking boundaries left and right, breaking promises?

How can she call her good , when Shouta’s fucking her just so he won't end up fucking his student?

That's a lie, whispers a treacherous voice at the back of his mind. You want her too. 

" Yes " the villain sobs. "No. I don't know, it's-- ahh !" 

In an instant, he's splaying a palm between Shigaraki's breasts, pulling her up against his chest. The villain whines, struggling to keep her balance as Shouta starts thrusting all of his frustration into her again, this time from below. 

" Eraser-- !" Shigaraki startles, clawing back with her deadly hands to find purchase in his hair. Her pheromones flare unrestrained, a heady mix of pleasure and pain. " God . Always- -nghh- -always knew you'd be big…!" 

"Always knew you'd be a brat" Shouta growls back, shoving so deep she has no choice but to throw her head back on his shoulder, scrambling not to fall.

He fucks her like she's a ragdoll. Fucks up into her until she's sobbing with it, until her legs are shaking from the intensity of Shouta’s assault, and then he fucks her onto himself. Holds her hips in a bruising grip and lifts her off his cock only to shove her down onto it again, and again, and again, without taking his eyes off of her for a second because he can't . He's dust if he does. 

How dare you? he growls inside, a silent bellow of fury. How dare you turn me into this? How dare you make me do this in front of my student? 

It's hypocritical. He knows, in the rational part of his mind that's buried under his raging alpha, that Shigaraki can't make him do anything. She can corner him, she can manipulate him; she can kill him where he stands. But she can't make him into something that he isn't, and the thought only makes him bruise her harder. 

He's distantly aware of the villain saying something, but he can't make himself focus. He can only still her squirming so he can fuck into her better, faster, deeper . 

"Fuck, Eraser, I said slow down --" 

Like this, her neck is dangerously close. Shouta nuzzles into her scent gland without meaning to, the wave of pheromones choking the reason out of him. He runs the flat of his tongue on the gland, drowning in the sickly-sweet taste of the villain in his arms, and Shigaraki gives a hard shudder that he feels everywhere around him. His canines come out without warning, tasting the soft skin beneath, looking for the right spot to break break break --

"Do that" Midoriya whispers into his ear, fingers tight around his scruff, "and I'll snap your neck in half, sensei."

Shouta nearly blinks. When did Midoriya move up behind him? He didn't see her at all. 

And… that's strange, isn't it? Because he didn't blink, he couldn't , not with Shigaraki's hands buried in his hair--

Oh. 

Except that he did, didn't he? 

When he was preparing to bite, subconsciously, he closed his eyes for a split second. 

He closed his eyes, and Shigaraki didn't kill him . 

Her pinkies , he realizes with a small jolt, counting the fingers in his scalp. Her pinkies are raised. 

"Gentle" his student murmurs, guiding her hands down his hips and forcing them to slow down. "She's liked you a long time, you know."

Shouta’s breath halts in his throat. "Midoriya--" 

"No." The girl's voice is firm. Ice cold. "You don't call my name when you're with her."

For a moment, his head spins. Could it be true? Could Shigaraki actually be doing this out of something other than the desire to torture him? 

Could she be trying to help him , in her own twisted way? 

You're not allowed to die, Eraser. 

Shigaraki whimpers quietly in his arms. " Izuku-- " 

"Sshh" Midoriya coos, the ice in her voice melting in an instant. "It's okay, sweetheart. It's alright. I'm here."

A slow exhale. Gradually, with the girl caressing gently down her naked sides, the villain's body begins to relax into his shallower movements. Slowly, she starts rolling back, too. 

"Look at her" Midoriya says, that glint of steel back in her voice. "Look at how beautiful she is."

And, again, Shouta’s mind betrays him. Because it only takes a glance, one glance at Shigaraki's swan-like body, the androgynous line of her hips, the perfect curve of her back--

"Yeah" Shouta breathes, unable to stop himself. "Yeah, she is."

Midoriya's voice softens immediately. "Heard that, love?" she purrs, carding a gentle hand down the villain's hair. "Sensei's got eyes after all."

Shouta side-eyes her for that. Midoriya responds with a cheeky smile that makes something in his stomach flutter. 

"How about you turn around?" the girl nudges. "Show him everything he's been missing?" 

For one, long moment, Shigaraki hesitates. It's only when Shouta’s grip turns soft but firm on her hips, allowing her to pull off while still supporting most of her weight, that the villain tentatively swings her left leg around over him. And then, as soon as she's stable again, she's sinking down onto him again, red eyes liquid with want and need . 

Shouta watches her with rapt attention. And, for once, it isn't because of his Quirk. "I believe I owe you an apology" he says, guiding her hips until they're resting flush against his. "I was under the impression you were trying to kill me."

Shigaraki is a breathless, quivering mess on top of him. "Who says I'm not?" she rasps, trying to claw some of her usual bravado back into her voice, hiding her temporary vulnerability behind half-closed eyelids. She gives a subtle roll of her hips, letting the corner of her mouth twitch upward in an attempt at a familiar, crescent smirk.

Shouta doesn't take the bait. Instead, he reaches behind his head, and simply hooks her pinky with his own. "You."

For a moment, the villain doesn't speak. Then, with an almost petulant whine: " Help , Freckles." She paws behind Shouta. "Your teacher's a mood killer."

Midoriya catches her hand, squeezing it with fond exasperation. "He can be that, yeah."

Shouta rolls his eyes at the both of them. But their fondness is infectious, and before he knows it, a small smile is playing on his lips, too. "How about this, then" he compromises, pulling Shigaraki closer still. The friction makes her tremble, and he takes the opportunity to dip his head into the crook of her neck. "If you want to kill me, try harder ."

Shigaraki's eyes go dark. 

The omega braces herself with her arms around his shoulders, lifting almost all the way off. Then, just when Shouta is about to slip out of her warm, perfect body, Shigaraki suddenly slams back down onto him. Without warning. Without mercy. 

Shouta muffles a curse in her shoulder. 

"Hard enough for you?" she teases, but doesn't give him a chance to truly reply. Only repeats the motion in a way that has him seeing stars. 

Shigaraki bears down onto him, again and again, and Shouta pours growl after growl in the crook of her neck, kissing along the sensitive skin. The villain sighs in appreciation, baring her neck completely, demanding more, more, more . More kisses, more licks, more bites. 

Shouta gives her all of it. 

Then, through the haze of sex and heat, he hears something. It's a wet, sloppy sound just above his head. And soft moans, quiet and smothered, almost as if--

Kissing, Shouta’s fried brain supplies. They're kissing. 

He can feel Midoriya's upper body pressed flush against his back: the curve of her breasts, the curl of her hand around his shoulder. Her scent, mixing with Shigaraki's in a deadly draught. 

Shouta’s fucked . He was fucked the second he walked into the alley, and he's fucked now, trapped between the lemongrass scent of his former student's arousal and the warm slick running down Shigaraki Tomura's thighs. 

" Izuku " Shigaraki moans, lost in the pleasure. "I'm gonna--" 

"Tell him" Midoriya murmurs against her lover's lips. "Tell your alpha how close you are."

" Hah " she pants, desperate and shaking. Shouta can feel her body start to clench around him, a vice of muscles and heat. The words your alpha must fry something in both their brains, because his canines are sharpening again, itching to mark, to claim, to bond . 

But then Midoriya's claws are digging into his shoulder, a silent warning, and Shouta forces himself to swallow the urge back down. 

"Eyes on me, Eraser" Shigaraki moans, raw and breathless as she rides him to goddamn death. "Or I'll really kill you."

She forces his chin up, staring down at him with blood-red desire. The kind of desire that makes her raze cities to the ground. Shouta lets his Quirk flare, and in that second, the villain lets her pinkies fall. 

Then she's throwing her head back, pace picking up into a chase, a mindless race to the end that has Shouta fighting to keep his eyes open. Decay hovers at the edges of his power, a beast ready to maim. To consume. To swallow him whole. 

He can feel her orgasm building from the base of her spine. A slow, maddening ignition. He thrusts up into that heat, meeting her exactly how she needs to be met, torturing that spot inside her that has her voice twisting into screams, until the omega just can't take it anymore. " Ahh, Eraser--! " 

She nearly catches on his knot. It's all Shouta can do to muster the presence of mind to hold her above it through it all, to let her fall apart on his cock without it spelling ruin for them both. Every contraction, every shudder of her body around his, Shouta can feel all the way into his bones, and it takes every ounce of his strength to resist . To hold himself back from shoving his way into that tight heat, and claiming the omega in the most primal way. 

"Eraser" Shigaraki chants, a siren song that only rips his determination into smaller, more insignificant shreds. "Eraser, Eraser-- " she calls for him in broken sighs, and Shouta is this close to saying fuck it and breeding her like she deserves, like she's begging to be bred--

And then, Midoriya's lips are there, swallowing up all of her prayers. 

This time, Shouta can see it. He can see the younger omega moving against Shigaraki's mouth, hungry like the heart of the hourglass. The villain melts against her, against him, against them both.

Beautiful . They're so beautiful. 

Distantly, he's aware of Midoriya's free hand rising to untangle her lover's pinkies from his scalp, freeing him from the curse of Decay. With a sigh of relief, Shouta allows himself to blink, burying his head in the crook of the villain's neck to lap unreservedly at her unmarked scent gland. An apology, for not being able to claim her properly. 

"There you go" Midoriya murmurs, all loving words and sweet praise. "You were amazing. I'm so proud of you."

Shigaraki nods weakly. Her legs are pudding at his sides, but in a few, shaky tries, she manages to lift herself all the way off. Shouta mourns the heat of her body immediately. 

"Treat her well, Eraser" she murmurs into his ear with a clap on his shoulder, and for all the devastation in her voice, somehow, she still manages to make it sound like a threat. 

Shouta frowns. "What are you--" 

The words die in his throat. One moment, he's looking at the wrecked face of the most dangerous villain in the world, and the next,  green eyes are there, staring down at him in quiet determination. 

"Midoriya" Shouta breathes as the girl settles comfortably on his lap. 

"Hi, sensei" the omega whispers back. 

Slowly, her arms come up to circle his shoulders. "What are you doing?" Shouta rasps, acutely aware of how close they are. How naked. How hard he still is, knot throbbing almost painfully between his legs. 

His student doesn't answer with words. Instead, she answers with her scent, as lush and thick as petrichor. "You're not safe from the Quirk yet" she says, and it isn't a question. 

Shouta swallows. He had almost forgotten about the Quirk. "It's not your responsibility."

Unexpectedly, Midoriya's expression hardens. Her scent sours with a tinge of annoyance, one she does nothing to hide. "And I'm not yours" she replies flatly, straddling him closer. "Not anymore." God, let me die. "So don't act like you're still my teacher."

"I'll always be your teacher" Shouta pleads, wishing he could wield his scent half as well as she wields hers, and convey everything to her. His sadness, his regrets. "You can't change that."

"I never wanted to change that" she replies, and the lack of anger in her voice is perhaps the worst thing of all. 

Then, without warning, his student grabs him at the base and lifts her hips.

Shouta hisses. "Midoriya--" 

"You didn't let me save anyone" she says, cold and factual in a way that breaks Shouta’s heart all over again. But then her expression softens, something further from a grudge and closer to a plea. "Let me save you."

And Shouta just--can't. He can't make himself say no to her. Not again. 

When Midoriya sinks onto him, slow and careful, his breath hitches. Shigaraki's slick is still coating him, and the scent it creates when it mixes with her own is a killer, overpowering thing. Shouta inhales, deep and greedy, and his student answers with a needy whine. 

"I'm going to move, sensei" she exhales, giving him time to guide his hands to her hips. Shouta marvels at how soft they feel--round and perfect under the calloused palms of his hands. 

Then Midoriya's moving, and Shouta can't think of anything at all. 

The rhythm she sets is slow. Cadenced. She isn't rising, or falling, or chasing her pleasure blindly: instead, she's swaying--rolling against him like the tide.

" Midoriya " Shouta sighs, and the girl presses a kiss to the top of his head. 

"Sshh. Relax" she soothes, running her fingers down his hair in a calming motion. "I've got you."

Her scent surrounds him like an embrace. Shouta nuzzles into her neck without thinking, and Midoriya gives a soft, blissed moan that pulls him in like gravity. Slowly, he starts kissing his way up: her shoulder, her collarbone, the hollow of her throat. 

"Mm" his student whines quietly, fingers coming up to card through his hair again. Her head lolls to the side, granting him access to her neck, and Shouta's lips gravitate towards her scent gland. 

"Careful" Midoriya sighs. "It's sensitiv-- ah !" 

The second Shouta’s tongue darts out, her entire body jolts. His mouth immediately fills with the taste of lemongrass, making his head spin. 

"Can I?" he murmurs, but even to his own ears it sounds like a plea. His alpha is completely subdued--hanging helplessly onto the omega's every word. 

"Yes" his student breathes, and Shouta seals his lips over the gland. " A-Ahh… "

He works carefully around the spot. Gently . Dragging the flat of his tongue over the gland, and groaning at the full-body shiver it elicits. Midoriya is trembling now, hands locked behind his neck and knees tight around his sides, and Shouta is overcome with the desire to hear her. Experimentally, he starts suckling at the spot, and his student rewards him with a high-pitched whine that only spurs him on. 

"Sensei" Midoriya moans, lost in the sensation. "Sensei, don't stop." 

He starts sucking in earnest, filling his mouth with the taste of her, filling his ears with the tiny gasps flying from her throat. "Oh god" she sighs, voice unraveling at the edges. "Please, sensei, please-- " 

His canines hurt . The ache is nearly unbearable, every instinct in his body screaming to pierce the skin, mark her, claim her. 

Make her yours. 

He tears himself away instead, as sharply as he needs to. Because Midoriya didn't want him to mark her mate, and Shigaraki isn't there to stop him from bonding hers, and so, he needs to be the one to do it. To prevent them all from losing control. 

But then he looks up, and the expression on Midoriya's face drives a knife through his heart. 

"Are you still turning me away?" she asks, with a half-smile that reaches nowhere near her eyes, and something inside him just cracks . 

Suddenly, he's flipping her on her back, shoulders to the ground and surprise in her eyes. "Sensei--?"

"I never turned you away."

Midoriya blinks up at him in confusion. "You expelled me" she points out, through the haze of sex and the hammering of heartbeats. 

"No" her teacher growls, almost snarls , fangs peeking out over his lower lip. " I didn't."

The omega freezes under him. Shouta forces himself to take a breath, calming down his scent. "There was a vote" he grits out, watching his student's eyes widen. "I was the only hold-out." Another breath, deep and shuddering. "I spoke against it. I tried, Midoriya. I--" his voice cracks around the edges. "I tried . And I'm sorry it wasn't enough. I'm sorry I didn't fight harder. I'll never forgive myself for that." A beat. When he speaks next, Shouta stares his student straight in the eye, tilting her chin towards him. "But I never turned you away. Do you understand?"

For a moment, Midoriya doesn't speak. Then, gradually, tears start glistening at the corners of her eyes. "You believed in me?" she asks, words barely above a whisper. 

"I never stopped" Shouta replies without missing a beat. His hand comes up to cup her cheek, and the omega nuzzles into it, a sigh of relief escaping from her parted lips. 

He dips his head down to hers, cheek against cheek. Rubbing against her slowly, trying to calm her down with his pheromones. Scenting her. 

Her scent only grows stronger in return. 

"Sensei?" his student calls, and Shouta answers. Always, always answers. "Mm?" 

"Kiss me."

Midoriya's lips are as warm as sin. Sweet, and sour, and addictive in a way Shouta can't defend himself against. He isn't sure he wants to.

"Touch me" she breathes, dark and almost commanding. Her presentation never kept her from demanding what was hers, just like her Quirklessness never kept her from being a great hero, whether others gave her credit for that or not. Shouta obeys without a word, running his hands up her sides, her stomach, her breasts. Touching everything he was keeping himself from sullying, inch by torturous inch. 

"Fuck me" she rasps, and Shouta obliges, pulling all the way back before slamming inside again in a way that makes the omega keen . 

" Yes " Midoriya moans, trapping her teacher's waist between her legs as he bears down on her again, and again, and again. " Ahh --fuck, sensei…!" 

"Language" he chastises half-heartedly, but his quip only makes the girl moan louder. 

"Please" she whines, high-pitched and needy. "Please, please, please-- " 

"What do you need?" Shouta groans, sucking bruises into her neck. 

A tug on his hair. "You" Midoriya replies, rolling her hips back against his with every thrust. "Your bite, your knot, you ." 

Shouta pauses. "Midoriya--" 

" Please " she begs, thighs squeezing him tighter. Pulling him deeper. "Don't say no to me."

As if I could. "Shigaraki--" he tries, one last objection from his crumbling reason, but Midoriya dips her head into his neck, right over her bitemark, and growls . 

"Don't say her name" she snarls, "when you're with me."

And Shouta is gone . He finds her scent gland immediately, and it's like coming home. He laps at the sensitive skin, and Midoriya gives a hard shudder beneath him that wipes his brain clean. He mouths at the spot, his canines growing sharper, scraping--

"Now" Midoriya urges. "Now now now do it--" 

Shouta breaks the skin, and the omega screams . 

"Mmph--!" Shouta groans, unable to hold back as she floods his mouth with her taste. He sucks every drop, fangs digging deep, deep, deeper . Her hips are a vice, urging him to go faster, to thrust harder, to split his student open until all she can do is cry on his cock and moan his name. 

Her rim catches on his knot, the pleasure almost blinding, but still, Shouta hesitates. He knows he needs to do this, because the Quirk will kill him otherwise; he knows he wants to do this, because his alpha is pounding against his ribcage with nothing else in mind; he knows Midoriya seems to want it, too, but--

Am I really about to knot a student? 

Between the chaos of his mind and body, he doesn't register the presence behind his back until there's a clawed hand on his shoulder. 

"C'mon, Eraser" purrs a hoarse, smokey voice in his ear. The scent of candy is everywhere. "You're not gonna keep my mate waiting, are you?" 

And then, without warning, Shigaraki's sinking her fangs into Shouta’s second, unmarked scent gland. 

"Ngh--!" Shouta groans, a shock of searing pain and searing pleasure ripping through him. His own scent surges between theirs, staining Shigaraki's syrupy-thick sweetness and Midoriya's rich petrichor with the dark, bitter aroma of ground coffee. Both omegas inhale deeply, shivering on either side of him. 

Then the villain sinks her fangs deeper, and Shouta’s hips snap forward. 

It's a second. Midoriya surges up to meet him, and the alpha thrusts , slamming his knot all the way into the omega's body. 

"Ahh, sensei--! " 

And then he's coming, the blinding intensity of his orgasm knocking him down entirely. His hips keep moving of their own accord, driving further inside Midoriya, spilling as deep as she'll let him, and then deeper still. His student is a mess underneath him, writhing and keening and calling his name as she comes, too, yanked over the edge by the reckless abandon of Shouta’s thrusts. 

"Sshh" Shigaraki soothes, leaning down to capture the girl's hand in hers. She brings it to her mouth and kisses her wrist. "That's it. You can take it, Freckles, can't you? Take it all in. Yeah, just like that."

Midoriya's orgasm has him in a chokehold. It squeezes the life out of him, an earthquake of contractions that milks him for everything he's worth, and then it just keeps going . She squirms madly in his arms, determined to keep every inch of his knot inside her body, to wring every last drop of pleasure from the alpha if it kills her . 

Shouta brings his mouth back on the mark, fangs fitting perfectly in the round holes there. Midoriya's whining, lost in a sea of sensations, and it's all the teacher can do to anchor himself to her, the way Shigaraki's anchored herself to him . It's too much, too fast, and he never wants it to stop. 

Still, eventually, the wave ebbs. Eventually, the pleasure is knocked down from unbearably intense to a fuzzy, all-encompassing glow. Eventually, Shouta manages to crack his eyes open. 

And god . 

"Are you alright?" he asks, looking into the flushed, devastated face of Midoriya Izuku. 

The girl blinks up at him, pupils blown to high heaven. "Mm-hm" she manages, her entire body twitching and spasming as his knot keeps filling her up. 

He knows, rationally, that they're going to use birth control after this. That the omega is just too young for anything like that. But even so, seeing her so thoroughly fucked out, submissive, bred--

His alpha purrs, and something above him purrs back. 

"...Are you comfortable?" Shouta deadpans, eyes flitting upwards. 

"Mm" Shigaraki hums, shamelessly sprawled over his back. "Very." She nuzzles in the crook of his neck, a satisfied purr in her throat. He sees her hand loll to the side, pawing blindly until it reaches Midoriya's. The girl squeezes back weakly, too out of it to even crack her eyes open again. "Shit. You're really feeling it, huh, Freckles?" 

In response, Midoriya whimpers. 

"Lucky hero" the villain drawls, sending a shiver down Shouta’s spine that has nothing to do with the omega under him. He wonders which one of them she's referring to. 

It takes forever for his knot to go down. But Shouta isn't complaining--not when every second is deliciously wrought out, Midoriya's body melting him down like clay. He spends minutes showering the omega with feather-light kisses, following Shigaraki's lead and murmuring quiet praises into her ear. Midoriya isn't coherent enough to answer with words, but the way she nestles into him, the way she pulls him down until every inch of their bodies is pressed flush together--

Mine , the omega seems to say, and Shouta can't help but agree. 

"Greedy" Shigaraki sneers from above. "Wanted him all to yourself, huh?" 

"You had him first" Midoriya manages to whine. 

"You had his knot" the villain replies. 

"I'm right here, you know" Shouta points out dryly, even as his alpha preens at the two omegas' possessiveness. 

"Mm, right" Shigaraki purrs, running her free hand down his back. Four fingernails, scraping lightly on the way down. "No sense in fighting when we can have round two, yeah?" 

"I--" Shouta stutters. "I did not say that."

"What do you think?" the villain asks her mate, ignoring him. "Sit on my face while he knots me next?" 

Blood rises to his face. Underneath him, Midoriya gives an eloquent shiver. He couldn't escape the arousal in her scent if he tried. 

Distantly, the rational part of his brain reminds him that the Quirk has worn off now. That Shigaraki is a villain, and Midoriya is his student, and that the two are allies now. More than allies. The heroes have lost her, and there's nothing Shouta can do about it. About the fact that they're enemies. 

And yet, the alpha in his chest recoils at the thought of separating. Because the omegas are his now, and they're in heat, and it's his duty to take care of them, whatever that entails. 

"We should move" Shouta says gruffly in the end. "Somewhere else."

A pleased scent wafts from the villain on his back. She rolls lazily off of him, pressing one last kiss at his freshly marked scent gland. Absently, the teacher traces both wounds with his fingertips.

He isn't sure how to feel about this. Alphas aren't supposed to bear marks of omegas. 

But Shouta’s done a lot of things he wasn't supposed to do today. 

He slides carefully out of Midoriya's body, and the girl gives a small, high-pitched whine of complaint. Shouta soothes her by scenting her again, a reassurance that her alpha isn't going anywhere. He presses a quick kiss to her lips, and soon, the girl is relaxing once more in his arms. 

"Talk about playing favorites" the villain huffs, half in teasing, even though she's holding her mate's hand again. "Where was that aftercare with me ?" 

"You left" Shouta points out. 

"Well, now I'm here" she drawls, suddenly close. Her red eyes burn like coals, an amused smirk splitting her lips like a wolf's. "So where's my kiss?" 

Shouta’s fast. In a heartbeat, he has two fingers wrapped around her chin, murmuring a half-hearted "Brat" against her lips, just before covering them with his own. 

Shigaraki's lips are rough to the touch. Coarse, like a cat's tongue. The tangy taste of blood is there, just below the thin layer of skin patching up her cuts, and another taste, too. He licks into her mouth and eats her up, chasing after the omega's candy floss scent with his tongue and his teeth, until she's left panting and breathless. 

"Better?" he asks, just a bit smug, and Shigaraki stares.

"Oh my god" comes a smaller voice from below. Shouta turns just in time to see Midoriya dragging herself up into a sitting position. "You shut her up. Sensei, that's a miracle."

"You being able to sit is a miracle" Shigaraki sasses back, making her flush on the spot. 

"You're one to talk" Midoriya grumbles. 

"Knock it off" Shouta says half-heartedly. But the two omegas are already reaching tenderly for each other on either side of him, fingers intertwining from both hands. 

"I would've killed him if he hurt you" Shigaraki murmurs, low and dangerous. Shouta’s suddenly very uncomfortable being so close to her. 

"Same" Midoriya murmurs back, and the teacher shoots her a startled look of betrayal. 

"You know, I didn't hear either of you complain" he points out, looking at one and the other in quick succession. The two omegas snuggle closer, squeezing him between them.

"Maybe your hearing's starting to go, old man."

" Hey ."

And, yes. There's no doubt in Shouta’s mind that this is a bad, bad, bad idea. 

"Must be all those hours in the teacher's lounge with Present Mic." 

The kind of bad idea that snowballs into a natural disaster. 

"I'm warning you, too, problem child."

But Shouta’s made a lot of good decisions in his life. Smart, responsible decisions. 

So what's two bad ones?