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The alphas in Class 1A are not good at sex, and this, unfortunately, has become Shouta’s problem. 

It’s the omegas who give it away. It’s always the omegas who suffer the most. The alphas can get by as long as they’re knotting something. Even a sleeve will do. But the omegas need more. They need the whole experience—the affection, the pheromones, the knot. And if they don’t get it, they’ll start acting out. 

Like today. The class is supposed to be cleaning, but Denki hasn’t swept up so much as a crumb. He’s been flitting around from alpha to alpha like a butterfly searching for the right knot. Aoyama and Tsuyu left ten minutes ago to do the bathrooms, and Shouta knows he’ll find them making out in a stall if he goes looking. Ochako has been wiping a clean spot on the blackboard for five minutes, and Bakugou… Bakugou’s the most concerning of all. If Midoriya doesn’t get out of his space, Bakugou might actually bite him.

The kid gets more aggressive every day, like he’s just begging to be shown his place, but Shouta’s never even caught a whiff of alpha on him. The other omegas are at least getting fucked, even if it barely scratches the itch. Bakugou isn’t even being touched. 

It’s concerning, particularly for an omega with so much potential. Getting fucked isn’t just about sexual satisfaction, it’s about self-esteem and pack dynamics. Bakugou needs to know that he can succeed on a cock just as well as he can on an exam. His posturing is a plea for alpha attention, yet no one has stepped up. 

This can't continue. Shouta’s not part of their pack, but even his instincts are going haywire from the daily influx of needy, confused, and unhappy omega scents. Eight dissatisfied omegas? It’s intolerable. Not every teacher would take this on directly, but Shouta won’t accept half-measures for this class. He’d give them each a knot himself if he had the time, but it wouldn’t solve the problem. This will require some hands-on teaching, and he knows exactly which omega should assist.

The next day, Shouta clears 1A’s morning schedule, canceling English and Calculus to make time for an extended module on sexual education. He leans against his desk, watching as his students file in, tension evident in every face as they see the blackboard, where he has written “Remedial Sex Ed.”

He opens directly, as usual. “We have a problem in this class, and that problem is that the omegas are not being properly cared for.” A few of the alphas frown at him, taking this as direct criticism, which it is. “You can smell them as well as I can. I’ve waited several weeks, hoping you would address this problem as a class, and it’s only gotten worse, so I must assume you don’t know how to fix it. 

“As your teacher, I’m responsible for your education, and our current situation tells me that the standard sex ed curriculum at UA is insufficient. Thus, we’re having a refresher today. Bakugou, please come up to my desk.”

Bakugou startles and frowns at him, but the kid rarely bucks a direct order, so he shuffles up in front of the classroom, eyes narrow and sullen. “What?” he mutters.

“I’m going to show the class how to fuck an omega, and you’re going to assist me.”

Eyes wide, Bakugou freezes, then begins backing away. “Hah??” 

“I said come here,” Shouta says calmly with the full weight of his attention focused on Bakugou. The lesson has begun.

Bakugou stops mid-step, his innate obedience conflicting with this put-on recalcitrance. 

“Right now,” Shouta adds firmly. Bakugou startles and crosses the three steps to stand at his side, face fixed in a frown.

Shouta wraps a hand around the back of his neck and turns him to face the class. “I chose Bakugou for a reason. First of all, he’s been neglected.” The kid’s cheeks burn pink and he fixes his eyes on the floor, scowling. “Second, to demonstrate that even a reluctant or aggressive omega can be coaxed onto a knot with some very basic techniques.”

Bakugou’s eyes go wide with that characteristic omegan doe-softness. “What?” he whispers in a hoarse voice.

The class watches with rapt attention as Shouta continues. “Please take note of how easily Bakugou has already acquiesced to my requests. A firm, confident voice goes a long way. I’ve also scruffed him, partly to reward obedience with touch, but even more to keep him calm.”

Bakugou looks at Shouta awkwardly over his shoulder, resistance building. “Get your hand off me,” he says, but he doesn’t pull away.

“Omegas have an instinctive need for admiration—from alphas and also their whole packs, which is why public copulation is common and healthy. Compliments are a simple way to put omegas at ease and it’s so effective at inducing slick, it’s practically foreplay.” 

Shouta waits and raises an eyebrow at the students. After a moment, Midoriya jerks open his notebook and starts writing. The other students follow suit, pens scratching over paper. Bakugou scowls at the class as if to ward off any future compliments.

“Don’t even make the mistake of thinking omegas are simple or easy to manipulate, even when already aroused. If you want to fuck an omega, the least you can do is give them your genuine admiration.”

Finally turning his full attention to Bakugou, Shouta looks him over with an alpha’s gaze. This won’t be hard. Bakugou is much more to his taste than the others. Athletic and slim. Pretty and pouty. But Shouta will begin something more familiar.

“Bakugou, over the past year, you have earned my admiration. You are a phenomenal fighter and a brilliant student. Yamada sensei told me your last English paper had insightful analysis and perfect grammar. Ectoplasm believes you could teach the class if he were out sick.”

Bakugou blinks at him, confused. Shouta is usually more measured in his praise.

“But on top of that, you’re gorgeous.”

Bakugou’s mouth drops open.

“Your face is beautiful.” Shouta traces the sharp line of his jaw. “And your ass is incredible. Sexy from every angle. I don’t know how the alphas in this class resist having you every day.”

Bakugou sways on his feet, reaching out to put a hand on Shouta’s desk. “What the fuck?” he whispers.

“You deserve sexual relief, and I can give it to you. Do you believe me?”

“I—” Bakugou stares at Shouta like he’s never seen him before. His gaze slides down Shouta’s standard black t-shirt and rests on the bulge in his pants. “What?” 

“Bakugou,” Shouta says clearly, “do you believe I can take care of you?”

Bakugou hesitates like he doesn’t understand the question. “… Yes?” 

“I look forward to increasing your confidence.” Shouta pushes up the sleeves of his shirt to expose his secondary glands.

“Class, intercourse is fundamentally an exchange of pheromones. Never forget the importance of scent and fluid.” Shouta sits on the edge of his desk, legs wide, and pulls Bakugou to stand between them, facing him. The boy stumbles forward, both hands landing on Shouta’s thighs briefly before he jerks backward. Shouta catches him before he can slip away.

“Scent can tell you many things,” he says in his teaching voice. Still holding Bakugou by the biceps, Shouta leans forward to put his nose at Bakugou’s collar and inhales. Poor thing is shaking with nerves, but he still tips his head to the side to give Shouta access.

“You’ll get better at interpretation over time, but an alpha’s instinct will take you a long way.” Shouta pulls Bakugou chest-to-chest with a hand on the back of his head. Sitting on the desk, Shouta is an easy height to coax Bakugou’s head onto his shoulder so the boy can breathe in his scent.

“Bakugou is nervous, which is why I’ve brought him close to my scent gland. Unless an alpha is angered, a dominant scent will always relax an omega. Aroused scents are the most effective, obviously. Better to prepare the omega for a knot.”

Bakugou shudders against him and Shouta spends a moment purring and combing his fingers through Bakugou’s hair. Every eye in the class is on him, which is just as it should be. They need the lesson. It’s mostly for the alphas, but the omegas and betas will learn plenty, too.

Shouta deepens his vocalization into a low growl and Bakugou’s cheek falls heavier on his shoulder. “Very good, Bakugou,” Shouta says, stroking his neck and slipping his fingers down into the collar of Bakugou’s shirt. His skin is satin-soft. 

Turning towards the class, Shouta continues the lecture. “Increase intimacy steadily, with both touch and scent.” He angles his hand so his bare wrist caresses Bakugou’s jaw, then under it and down his delicate neck. “I’m scenting Bakugou rather heavily given the unusual setting and his naturally high anxiety. It’s going to make him quite calm. This is a safe choice with a new or nervous partner, but every alpha has his own preferences when it comes to scent sedation. And omegas, too, I guess.”

Bakugou nuzzles in closer until his nose brushes along Shouta’s neck. When Shouta tugs down his collar, Bakugou croons and laps once at Shouta’s skin, but the taste must startle him because he jolts back.

“No, no.” Shouta pets him again until his body softens. “You’re doing well, Bakugou. Tell me what you taste.”

Bakugou shakes his head.

“Come now,” Shouta tries to combine his low, soothing bedroom voice with his louder teaching voice, a strange exercise. He pulls Bakugou back with a gentle grasp in his hair. “No hiding. I’m sure you have an excellent nose. What can you interpret from my scent?”

His cute nose wrinkles and he looks away from Shouta. “Confidence,” he mutters.

“Yes.” Shouta repeats it more loudly for the class. “I’m extremely confident I can care for you. What else?”

Bakugou makes a little grunt in his throat. “Calm.”

“Obviously, but you’re avoiding something, and there’s no need to do so.”

Bakugou glares at him. Such an unusual look for an omega, those narrowed eyes. Not a pout, but real irritation. Well, that’ll fuck right out of him. Shouta raises his eyebrows and waits.

“You’re horny,” Bakugou says finally, like the word embarrasses him.

“Very good.” Shouta rewards him with touch, rubbing his scalp. “I am aroused, and what alpha wouldn’t be with such a sweet, pretty omega pressed against him?”

“I’m not sweet,” Bakugou mutters.

“Well, you smell sweet.” Shouta leans in to sniff his neck. Then, for good measure, he tugs Bakugou’s collar aside and laps over his scent gland. The taste of Bakugou’s arousal practically sparkles on his tongue, making Shouta hum with satisfaction. “And you taste very sweet. Scents don’t lie.” 

When he pulls back, there’s a bright pink blush shading Bakugou’s cheeks and his mouth is parted in surprise. What did he think was going to happen? That Shouta would fuck him without tasting him? What on earth have the alphas in this class been doing? 

Shouta turns back to the class. “Taste reveals even more than smell, and of course, both alphas and omegas enjoy when attention is paid to their scent gland. It’s intimate, it feels good, and it should taste good, as well. Remember: sex is about pheromones. If your omega doesn’t taste good, you’ve done a poor job arousing them.” As Shouta lectures, he coaxes Bakugou to cuddle back in his neck.

“Bakugou’s taste was perfect,” Shouta adds, and Bakugou hunches his shoulders up. “He’s certainly aroused, he’s rested, he’s not in pain. There’s no reason at all he shouldn’t be fucked.” Bakugou’s hand clenches at Shouta’s hip. “I can still sense anxiety, but we will continue to work on that. I’ll add that plenty of alphas particularly like the zing of a nervous omega. This is fine, as long as those nerves don’t inhibit their ability to take a knot successfully.”

Bakugou turns further into Shouta’s neck, growing shy, as he seems to at any mention of knotting, and seeking the comfort of Shouta’s scent. As a gentle encouragement, Shouta tugs Bakugou forward by his hips until he can feel Shouta’s erection. Bakugou gasps and his open mouth instinctively latches onto Shouta’s scent gland. He moans—the loudest sound he’s made yet—and clutches at Shouta’s shirt. Bakugou’s scent goes hot-sweet as he starts lapping at Shouta’s neck like a kitten with a saucer of milk.

The pleasure of it causes Shouta to drift for a minute, soaking in the satisfaction of a wet omega squirming against his crotch. He spreads his legs wider and looks over the class, full of wide eyes and bitten lips. Kirishima raises his hand.

Shouta focuses. “Yes, Kirishima?”

“What if… uh… the alpha is also nervous? Will his scent still work?”

Ah, it’s been so long since Shouta was a nervous young alpha. “Yes. It won’t be quite as effective, but it will still have a sedating effect on an omega. You’ll find that as you become more aroused, arousal will overpower nerves. And don’t forget to focus on the omega.” Shouta emphasizes his point by palming over Bakugou’s perfect handful of an ass. He squeezes and Bakugou’s groan vibrates against him. “If your attention is on your partner, you’ll be too busy to be nervous.”

Kirishima nods, eyes glued to Bakugou’s ass, which is now rocking in Shouta’s hand as Bakugou grinds against his cock.

“If you can smell slick, which I assume at least those of you in the front row can, it’s time to get skin to skin.” Bakugou is so intently focused on Shouta’s gland that he doesn’t react. “At this point in your encounter, it’s a bad idea to break physical contact with the omega, not that you’ll want to.” Shouta certainly doesn’t want to take his hands off Bakugou’s ass. 

“Kirishima, can you please assist me?” 

Kirishima nearly knocks over his desk in his hurry to stand. He nods like a puppy.

“Please get my sleeping bag from the back of my chair and lay it over the desk.”

“Yes, sensei!”

He has it done in a flash and returns to his seat, pouting at Shouta’s gesture. He’d clearly like a closer view, but Shouta has to get his cock in Bakugou first.

“Now, as I keep repeating, scent is important. This is why you would usually fuck an omega in your bed or their nest. My desk is neither of those things, which is why I’m putting Bakugou on my sleeping bag.” Shouta gently nudges Bakugou away from his neck. “Come on, sweetheart.”

Bakugou growls and tries to push back in, but Shouta captures his face in both hands and forces him to look up. His lips are wet and shiny with oil from Shouta’s gland. Arousal has darkened his eyes to burgundy. He’s fucking gorgeous and this could be fun if Shouta weren’t trying to impart wisdom to the class. “Sweet boy, if you get on my desk, I can give you my cock, and I promise you’ll like that even more than my scent.”

Bakugou’s lip quivers as he stares wide-eyed at Shouta. Then he turns his head and whimpers as his eyes dart back toward the class. 

“Shh, shh. It’s okay. They’ll only see what a good omega you are. You’ve been perfect and I can’t wait to feel you tight around me.” Bakugou hangs on his words like a puppet and Shouta slowly moves him toward the side of the desk. “Very good. Here. Come back here for a second.” He directs Bakugou back onto his scent gland so he can get his clothes off and address the class. Bakugou’s shyness provides a good teaching moment.

“Class, omegas have an instinctive need to be admired. Not just by the alpha who is fucking them, but by the whole pack.” He works open Bakugou’s pants and lets them fall to his ankles, patting his ass when Bakugou whines. “But as you can see, Bakugou is displaying reticence about public copulation. What is a likely explanation?”

Shouta works a hand between them to undo Bakugou’s shirt buttons as he waits for the class. He’s on the last one when Uraraka raises her hand.

“Yes?”

She presses her lips together before saying, “Maybe he’s unsure that he’ll be admired?”

Shouta nods. Of course, an omega would understand. “Exactly. And how might we alleviate this concern?” He wants to hear from one of the alphas. “Todoroki?” 

Todoroki blinks like he’s coming out of a trance. Sitting in the back like that, he shouldn’t be quite so affected, but young alphas have good eyes. “We, uh, admire him?”

“For example?” Shouta asks.

Todoroki watches carefully as Shouta slides Bakugou’s shirt and jacket from his shoulders and drops them to the side. He clears his throat. “Bakugou, your ass looks… tight and biteable in those briefs.”

That’s about what he’d expect from Todoroki: direct and bordering on awkward, but he's trying. Shouta nods as he runs his hands down the smooth span of Bakugou’s back to grab that ass for himself. “Good, yes. We praise him, and we focus on what’s relevant at this moment. Not his intelligence or his strength, but his sensuality.” 

As the most dominant alpha in the room, Shouta needs to set the example. “Bakugou, you’re doing so well for me. The way you’re grinding on me is charming, and I can smell how perfectly wet you are. You’re going to impress everyone when you take my cock.”

Bakugou curls with arousal, pressing his forehead against Shouta’s collarbone.

“Onto the desk now.” Shouta grabs him by the hips and lifts him onto it. He moves quickly with firm motions and Bakugou scrambles to keep up, trying to make sure he’s where Shouta wants him. “Lie back and let me see you,” Shouta says, pressing a hand on Bakugou’s bare chest until he goes flat, panting with nerves and excitement.

“Look at this body. God, aren’t you the prettiest thing,” Shouta says, maintaining the stream of praise. He gets both hands onto Bakugou, groping and teasing. The boy arches responsively as Shouta strokes down his chest, plucks his nipples hard, and squeezes his tiny waist. His eyes never leave Shouta’s face, soaking in the admiration his body deserves. 

Finally, Shouta works down to Bakugou’s briefs and presses the heel of his hand into the dark, wet spot between his legs. Bakugou bounces on the table like he’s been electrocuted.

The shock brings him verbal. “Fuck. Sensei. Please.” 

“You’re in good hands, Bakugou. Lift your hips.”

He does it with perfect obedience and Shouta tugs those damp briefs down his long, pale legs. And then, he’s bare, writhing around in the nest of Shouta’s yellow sleeping bag.

“Look at you,” Shouta croons, as Bakugou slides his hands over his hips and rubs his thighs together shyly. Shouta pushes his knees apart and Bakugou keens and presses a hand over his mouth. “Look at your gorgeous, wet vulva.” Bakugou whimpers. His legs strain to close. “No, sweetheart,” Shouta says. 

“Class.” Shouta never takes his eyes off Bakugou’s pussy. He catches Bakugou’s hand and pins it to the side when he tries to cover himself. “How else could we reassure Bakugou if praise isn’t enough?”

No one answers, so Shouta says, “When we began the lesson, I said sex is fundamentally an exchange of what?”

“Pheromones,” Midoriya calls out. 

“Very good.” Shouta quickly unlatches his belt and pushes down the front of his pants. He pulls out his cock and Bakugou struggles to lift his head off the desk for a better look. His mouth is open so wide Shouta’s first instinct is to fill it, but Bakugou is so overeager he would probably choke.

“See how hard you’ve made me?” Shouta strokes his cock slowly while Bakugou follows his hand like he’s hypnotized. Letting Bakugou watch every motion, Shouta thumbs off the precum that’s wetting the tip, and reaches toward Bakugou’s mouth. “Tongue out.”

Bakugou obeys and Shouta presses his thumb onto Bakugou’s tongue, rubbing back and forth. The effect is instant. When Bakugou closes his mouth, he wilts back into the shiny yellow fabric, eyes hazy. His legs fall open.

“Precum is thick with pheromones,” Shouta says, swiping off another bead and rubbing it over Bakugou’s soft lips. Bakugou purrs as he licks it off. “It’s calming, obviously, but it’s also a clear sign of my arousal and admiration. The harder and wetter I am, the more Bakugou knows he’s doing a good job.”

Bakugou hums.

“Which he is.” Shouta gathers another drop and rubs it into Bakugou’s scent gland for good measure.

“Now, let’s see you.” He butterflies Bakugou’s legs so his vulva is spread open. “Gorgeous. Look how plump and wet.” Shouta drags his fingers between Bakugou’s labia, pinches them a bit, and earns a pleading keen. 

“Sensei,” Shoji calls.

“Yes?”

“Is there a reason you had him stick his tongue out?”

Shouta nods, parting Bakugou’s labia to see his teensy slit. “Obedience in small things before obedience in big things. Watch.” He turns back to his naked omega. “Bakugou, show me how you touch yourself.”

Slowly, Bakugou’s hand trails down his chest. For a moment it appears he’s hesitating at the command, but Shouta is patient enough to wait as Bakugou rubs his thumb over a nipple. Teases down his abs with the back of his fingernails. Strokes his clit with a barely-there touch.

He’s not stubborn, he’s just gentle with himself. It’s surprisingly sweet, the delicate way he teases. Shouta mirrors the touch on his inner thighs. “Do you see Shoji? By building a habit of obedience, I can coax Bakugou to do things he would otherwise hesitate to do.”

The alphas all nod, and several are taking notes. Good.

“Let’s talk about copulatory position for a minute. The classic presentation is classic for a reason, but it has drawbacks. Yes, I’d love to have Bakugou ass-up, but you’ll see I have him laid out facing me, and this is purposeful. I want to observe his reactions, particularly given that I’ve never fucked him before. Both positions are mainstays. I do not recommend riding. Most omegas do not wish to be in control during intercourse and it inhibits relaxation and knot-readiness. If you put your omega on top, you should still be in control of the pace.”

On his best behavior, Bakugou hasn’t stopped stroking himself. Shouta moves closer so his dick smacks down onto Bakugou’s pussy. Cooing, Bakugou grabs it and starts rubbing it on himself.

Shouta smiles at the pretty display. “You can see Bakugou is ready for penetration. If he weren’t this wet or eager, what could I do to get him there? Alphas?”

“More praise,” Todoroki says.

“Kissing?” Shoji asks. Shouta nods. He hasn’t kissed Bakugou, but only because he’s needed his mouth to lecture.

“Precum,” Kirishima says.

“Oral sex,” Iida says.

“Well, yes,” Shouta says. “Most omegas are aroused by giving pleasure, so long as you praise them. Oral sex is particularly effective in groups. What about you, Sero?”

“Oral sex,” he says with a crooked smile. “But the other way.”

Shouta pauses. “That’s a generous answer, Sero, and it can be effective, but remember that omegas can get anxious if you aren’t also receiving pleasure. You could always have another omega service you at the same time.”

Sero nods thoughtfully as Midoriya pipes up.

“What about spanking?”

It’s good that someone brought it up. Shouta adjusts Bakugou’s hand around his cock to keep the omega busy while he talks. “Pussy spanking is an old fashioned hack, Midoriya.”

The kid frowns at him. 

“Will it make an omega wetter? Yes. But only as a protective response to the perception of a displeased alpha. Do you want your omega getting wet to protect themself from you? Or to welcome your cock inside them?”

Midoriya still frowns as he watches Bakugou stroke Shouta’s cock, rubbing his slick all over it.

“Midoriya?”

More than half distracted, he responds. “The second one.”

“Yes. Despite its prevalence in pornography, the idea that you should always spank an omega’s genitals before intercourse is wildly outdated. I’ve been gentle with Bakugou, and yet he’s slicking onto my sleeping bag. No spanking required.

“Now. Some alphas prefer the look of a swollen vulva. Some think it feels better on their knot. That’s fine on occasion, but do it too often and you risk training the omega’s body to respond best to a harsh touch. It’s the lazy alpha’s course, and you lose the beauty of the natural reaction.” Shouta gestures at Bakugou, wet, lovely, obedient, and sprawled on his desk. Shifting his hips forward, Shouta rubs the head of his cock over Bakugou’s clitoris and the boy purrs. “Bakugou wouldn’t be purring if I spanked him.”

“Um, sir?” Midoriya is leaning so far forward his desk has tipped onto the front legs.

“What, Midoriya?” Shouta strokes his cock between Bakugou’s flushed lips.

“Doesn’t spanking also increase sensitivity for the omega?” 

This kid really wants to spank someone. “Come up here Midoriya.” He scrambles up so fast there’s a trail of green lightning until Shouta activates his quirk and Midoriya skids to a stop near the desk.

Perhaps all the alphas should see what a properly prepared omega looks like up close. “Iida, Shoji, Kirishima, Sero, Todoroki. You may also approach my desk, but keep your instincts under control.”

The alphas hurry up, each one eager for a better look at Bakugou.

“Observe.” Shouta gives Bakugou his gentlest touch, tracing up the edges of his labia and rubbing softly against his swollen clit. Bakugou gives a lilting moan and rolls his hips seductively. As he looks up at the alphas, he presses a hand down his abdomen, as if to emphasize how slim he is. How tight he’ll be.

“Midoriya, does Bakugou seem sensitive to you?”

Midoriya wipes his mouth with the back of his hand. “Uhhuh.”

“And is he wet?” 

Midoriya nods, never looking away from Shouta’s thumb, which still eases up and down over Bakugou’s vulva, sending tremors through his body.

“Has he done anything to warrant a punishment?

Midoriya shakes his head.

“Then there is no reason to spank him. He likely would cum from it, and he’d be more sensitive afterward and cum uncontrollably when fucked. Orgasming to oversensitivity is a real problem, especially for young omegas, and I don’t want to make Bakugou cry right now.” Shouta turns his attention back to Bakugou’s face. His eyes are half open. Mouth parted and wet. Shouta strokes his cheek. “Not when he’s doing so very, very well.”

“What if he did need a punishment?” Iida asks. 

Shouta shakes his head. Young alphas are always too reliant on domestic discipline when it’s so much better for omegas to be coaxed into productive behavior from the start. Yes, omegas need correction sometimes, and yes, it’s a pleasure to deliver, but these alphas aren’t ready. 

“None of you have enough experienced to chastise an omega, particularly sexually. I will handle it myself until I have a chance to train you. “

The topic is worth a whole lesson on its own. Perhaps Shouta can give a demonstration next week when Bakugou inevitably throws a fit during an afternoon workout. That ivory skin will color beautifully.

Kaminari interrupts before Shouta can continue with the lesson. “Sensei? What if the omega wants to be spanked?” What a tease this boy is. 

“Well,” Shouta says, “then they should ask the alpha, of course. But always know that you might not get exactly what you want. For example, If I’m going to spank, I prefer to spank the anus. It doesn’t naturally flush and swell with arousal the way a vulva does, so a few hard swats make a big difference.” Kaminari’s eyes go wide and Shouta grins. “And it hurts more. So be careful what you ask for.”

Sero’s hand shoots up. 

“Yes, Sero?” 

“Does that sort of spanking interfere with anal sex?”

It’s a thoughtful question for an alpha. “Oh, no. Absolutely not. Unless there’s significant swelling, the increased blood flow can actually help the anus stretch for a knot. Just start with a few vaginal thrusts, so you’re appropriately slick.” 

Sero nods, looking at Kaminari, who's biting the tip of his finger.

Time to move things along before the alphas get out of control. “Enough on that topic. I suspect the six of you don’t know what a properly aroused omega looks like, so I would like each of you to take a minute to examine Bakugou’s genitals.”

Bakugou rouses from his haze, eyes big as they cast around the circle of alphas standing at the desk. He looks at Shouta, confused, and then his eyebrows furrow like he’s trying to summon his anger.

“Calm down, pretty one.” Shouta moves around the desk towards Bakugou’s head, keeping one palm in constant contact. “These are your pack alphas and you’re safe. I’m still here. I’m in control.” 

It’s concerning that even drunk on arousal, Bakugou would find the presence of these alphas alarming. This lesson is well overdue.

“Not Deku,” Bakugou rasps.

Shouta raises an eyebrow and looks at Midoriya, whose mouth drops open in horror. “Sensei, please,” he begs, already reaching for Bakugou’s thigh.

Bakugou whines, shying away from the touch and oh-so-pretty in his pleading. It tugs on Shouta’s natural possessiveness. He probably shouldn’t cater to Bakugou, but his behavior has been excellent.

“Very well, Bakugou. Midoriya, you won’t touch this round, although you may stay here and observe. I suggest that you work on Bakugou’s comfort with you.”

Midoriya’s eyebrows draw down and his fingertips crackle with green until Shouta halts his quirk with a glare. “Control yourself or return to your desk.”

He crosses his arms with a ferocious pout and settles in to watch. 

“Now.” Shouta palms Bakugou’s cheek and tilts his face towards Shouta’s crotch. “That’s enough talking from you.” The tip of his cock nudges into Bakugou’s jaw, smearing it with precum until instinct kicks in and Bakugou turns and latches on like an infant at the breast. It’s adorable that omegas never lose that impulse. 

Bakugou’s breathing calms as he suckles precum and Shouta strokes his downy hair. Bakugou’s eyes are darkening behind thick lashes as he raises them to Shouta’s face. “There you go. No deeper than that. Keep those lovely thighs spread.”

Bakugou’s eyes fall shut as he swallows another dose of pheromones, and Shouta addresses the alphas. “Note the flush of his labia, the liquid consistency of his slick, and overall engorgement. You can examine his clitoris, too,” Shouta tells Kirishima who’s first up and touching Bakugou as carefully as he would an injured bird. At the encouragement, he nudges back the hood with thick fingers and squeezes it while Bakugou moans on Shouta’s cock.

At Shouta’s wave, Kirishima reluctantly backs away, sucking on his fingers. Sero steps up next. “Can I put a finger in him?”

“You’ll need two to check his elasticity,” Shouta says, nodding.

Sero’s eyes go wide and he crouches down for a better view. He licks his lips at the scent, parts Bakugou’s labia with his fingertips, and pushes inside.

The alphas begin panting as Bakugou is penetrated and Shouta fights a spike of aggression since it isn’t on his fingers. He’s had plenty of pussy, even young, tight pussy, but Bakugou melts so prettily as he’s opened, breathy sighs and fluttering lashes. Shouta gives Sero a minute to thrust and probe before motioning him away.

Shoji is next, and he’s equally gentle, replacing Sero’s fingers with his own and spreading them slowly, stopping when Bakugou’s forehead furrows at the stretch. It’s odd to see how cowed Bakugou has the alphas—how tentatively they touch him, whether it’s for his pleasure or theirs. They’ll need to see that omegas can take some rough handling.

Thankfully, Todoroki doesn’t have the same concern. He makes a quick pass over everything like he’s taking inventory, then moves his thumbs low to spread Bakugou’s cheeks. “Can I put one in his ass?” he asks.

Shouta nods. “Vagina first for slick, but yes. As I said, two allows you to check elasticity. It should be nearly as pliant as his pussy.”

Todoroki wastes no time. He slicks his fingers with a quick plunge and then begins working them in to Bakugou’s ass. Bakugou’s eyes go wild and Shouta cups his face. “Just suck on me, you’re doing so well,” he says while Todoroki twists his wrist back and forth. He has to spit once on Bakugou’s hole to add lube, but Todoroki works up to a gentle slide, in and out. Shouta lets him continue for a minute to help Bakugou adjust to the sensation. His face is still pinched and his tongue is working at Shouta’s slit, trying to coax out more precum to soothe himself.

Kirishima adjusts his cock and clears his throat. “Sensei, I didn’t get to...” he holds up two fingers and gestures. “You know.”

“Fine, quickly though.” Shouta gives him the nod and Kirishima darts to Todoroki’s side. He licks his fingers and then slips them into Bakugou’s vagina. Bakugou squirms and moans a little protest, but Shouta places a heavy hand on his abdomen and Bakugou stills. “Be good and take it,” Shouta says. “How else will they learn?”

Bakugou looks up at with vague, dark eyes, but then he nods, a tiny motion given his mouth is full of cock, and tips his ass up to give Todoroki better access. “So good, Bakugou,” Shouta coos. The sweet, compliant behavior makes his cock pulse out a heavy stream of precum. It surprises Bakugou who tries to swallow but ends up coughing.

“Oh fuck that’s tight,” Kirishima gasps as Shouta attends to Bakugou. 

“Teeth, you have to watch your teeth,” Shouta says, hooking his thumb in the corner of Bakugou’s mouth. He strokes Bakugou’s throat until the fit passes, rolling his eyes at the two alphas still moaning over Bakugou’s clenching holes.

Kirishima looks like he’s five seconds away from humping Todoroki’s hip so Shouta dismisses them and nods at Iida. Just one more baby alpha and Shouta can have his turn.

Iida approaches with confidence and uses both hands to spread Bakugou’s pussy wide for a clear view. He tugs and pinches Bakugou’s labia to test engorgement, pulls back the hood, and watches Bakugou twitch as he plunges two thick fingers deep into his vagina. “Beautiful,” Iida murmurs. Then, before Shouta can stop him, Iida reaches out and flicks Bakugou’s clitoris sharply.

Bakugou arches up off the desk with a cry and Shouta has to smack Iida’s fingers away before he does it again. “We just discussed spanking," Shouta snaps. "Do you think clitoral abuse is any different?”

Iida straightens and steps back immediately. “Sorry, Aizawa-sensei. I was... overcome.”

Shouta bares his fangs at the impertinence. “This is my fuck, not yours.” He holds Bakugou’s head and thrusts into his mouth for emphasis, just deep enough to make him sputter. “You are here to observe and learn, not to make my omega climax. Understood?”

Iida nods, head tilted in submission.

“Step back,” Shouta growls as he moves back between Bakugou’s legs. After such a long suckle at Shouta’s cock Bakugou is limp and dreamy on the desk. He purrs as Shouta tugs his ass closer. 

“Bakugou’s behavior has been exemplary and he’s waited far too long for this fuck.” Shouta, too, has waited too long and shared Bakugou too much. An alpha’s patience can only stretch so far. 

Shouta takes his cock by the base and bounces it off Bakugou’s pussy a few times to refocus his attention. To remind him exactly who’s going to satisfy him. Six pairs of alpha eyes burn jealously, but no one moves.

Without fanfare, Shouta lifts Bakugou’s hips, nudges his cock between slick folds, and finally pushes himself into Bakugou’s body. 

He isn’t even halfway in when Bakugou throws his head back, covers his face, and chokes out, “F-fuck, Sensei, sh-it. I’m—”

He cums on the tip of Shouta’s dick and it’s adorable.

“Oh, sweetheart.” Shouta chuckles and shoves himself further into Bakugou’s clenching pussy. The motion sends Bakugou reeling. He grabs onto the desk like he’s afraid of falling, fingers slipping on yellow nylon as he spasms and squirms on Shouta’s cock. He’s still cumming, and he curses up a storm as Shouta grinds himself deeper. Despite Bakugou’s babbling, he hasn’t even taken the whole thing yet.

“Omegan vocalizations are normal and desirable,” Shouta says, a bit breathless, as he jerks Bakugou onto his cock in time with the next thrust. Bakugou wails in a perfect demonstration. “They function to draw other alphas to the nest to observe the omega’s sexual performance.”

It’s a challenge to lecture and fuck at the same time. Shouta begins panting as he puts his back into it, pushing Bakugou’s knees to the desk next to his shoulders. Little thing that he is, Bakugou’s going to be aching tomorrow, but not from lack of a knot. The base of Shouta’s cock is already swelling, stimulated by the squeeze of Bakugou clenching tight every time Shouta’s hips slam into his ass. 

Bakugou gasps when he feels it—the added stretch. “Oh fuck. Fuck. Sensei. Sensei, too deep. Are you… g-gonna… FUCK!” He doesn’t finish the question. It stutters into another orgasm when Shouta slides both hands under Bakugou’s shoulders to yank him down harder and force in the knot. His pussy squelches with slick.

Shouta holds him there, grinding in full strength to make sure Bakugou locks him. The orgasm helps—Bakugou spasms even tighter, gripping Shouta’s knot until his thrusts jerk Bakugou up and down on the sleeping bag. Moaning, Bakugou wraps his arms around Shouta’s neck to hold on. The strength of his knot-tie is phenomenal, and the pleasure of his squeeze so intense Shouta collapses on top of him as the cum floods out of his cock.

Whether it’s Bakugou’s age or intensive daily training, he’s the tightest omega Shouta can remember knotting, even among the students. Shouta nudges his knot back and forth, rocking it inside Bakugou to help him stretch. Bakugou whimpers as Shouta works him from the inside, but rough treatment will increase his knot capacity for the future.

Slowly, Shouta’s instinctive thrusts taper off, and the first heady wave of ejaculation passes. He buries his face in Bakugou’s neck, mouthing over his gland. As Shouta’s knot stills, Bakugou’s scent ebbs into pure relaxation. Shouta can even catch a subtle layer of relief. Shouta scents him again, smearing him in alpha satisfaction.

Then he stands, mindful not to pull on Bakugou with his knot, wipes the tears from Bakugou’s cheeks, and sighs at the sight of six, teenage alphas with their fangs bared and their hands in their pants. If Bakugou weren’t already knotted onto Shouta’s cock like a pale, drunken angel, they’d be fighting for dominance. 

Now that he’s got Bakugou satisfied and filling with cum, Shouta’s innate possessiveness eases. He doesn’t like sharing, but he can control his instincts if it will help solidify their fledgling pack dynamics. He gestures toward Bakugou’s body. “Go ahead.”

Six cocks whip out as fast as lightning and desperate hands grip them. Kirishima isn’t able to do more than aim before he’s spraying cum onto Bakugou’s left pec. Midoriya follows immediately, ejaculating so hard he misses Bakugou’s body entirely and hits Shouta’s forearm. Ugh. 

“Oh, fu—shoot. Sensei. I’m—” The next spurt gets Bakugou’s navel. “I’m s-sorry,” Midoriya chokes. He spurts again on Bakugou’s hipbone and grabs his cock with both hands, gripping hard at the base and the head. Of course. He’s knotting. Teenagers. 

“Trash can, Midoriya,” Shouta says, shooing him away. He's going to get cum everywhere and Bakugou is too dazed to swallow a knotload without choking.

Pants around his ankles, Midoriya stumbles to let his cum pulse into the trash while Sero, Todoroki, Iida, and Shoji finish the job, painting Bakugou’s chest with their approval.

The pack recognition is over so fast Bakugou doesn’t seem to realize what happened. Blearily, he looks around at the alphas, panting, fangs out, cocks in their hands. Then he blinks down at his body and tentatively dips a hand into the spatter of semen on his chest. His eyebrows furrow as he stares at the sticky coating on his palm.

“Oh fuck,” he groans, closing his eyes.

“Go ahead and rub it in,” Shouta says.

Bakugou’s hand shakes as he drags it down through the mess. When he passes his navel he pauses, presses, and groans again. “Oh fuck,” he repeats. “That’s…”

“My knot,” Shouta confirms, rocking it for him. “You locked me nice and tight.”

Bakugou shudders as he smears cum on his abs, fingers probing to feel the outline of Shouta’s knot above his public bone. Lower lip trembling, he gazes at Shouta uncertainly. "Sensei?"

Shouta cups his cheek. "I have you, Bakugou." Then he turns to the others. “Okay alphas, well done. Back to your desks. Midoriya, you can stay by the trash can until your knot is drained.”

Shouta uses the already-filthy sleeping bag to wipe the mess from Bakugou’s skin. He’s not about to get their spunk all over his clothes while he cuddles Bakugou. Pack ejaculate marking is mostly symbolic, anyway. Even if Shouta leaves all that semen on his skin, Bakugou will still smell like Shouta since it’s his cum that’s flooding Bakugou’s tender little pussy.

At least, he will until one of his pack alphas decides to fuck Shouta’s cum out of him and re-scent him with their own.

Shouta gathers Bakugou’s limp body and sits back in his desk chair with the omega tucked close in his arms. Perhaps Shouta should forbid anyone to fuck Bakugou until the weekend. Shouta used him hard, and the lesson to take care of their own might hit the alphas harder with the reminder that someone else did. 

“Okay, class,” he says, settling back in his chair and pressing Bakugou’s face to his neck. “It was a bit hard to lecture during intercourse, but the key point to remember is deep. Fuck deep to get that knot all the way in. You might get some whining, but rim knotting hurts the omega and interferes with milking. Don’t risk a shallow tie with hesitant fucking.”

He lifts and spreads Bakugou’s cheeks, tapping a few times against his pucker to draw their attention to it. “That goes twice over for anal knotting. This sphincter needs to be tight around the base of your cock. If you can’t get the whole thing in, pull out and cum on them. Face, mouth, and neck are almost as satisfying.”

A whimper from Ochako reminds Shouta that the omegas haven’t gotten off yet. If he wraps up soon, they might be able to get some relief before lunch.

“Assuming you’ve knotted well, you’ll be tied for nearly an hour. That time is for bonding, so enjoy it. Many disagreements can be fixed in the afterglow of a good fuck. Sometimes I think it’s better than the sex.” The lassitude is making Shouta chatty and tactile. He cups Bakugou’s ass to bounce him a little. Bakugou sighs happily, certainly not listening but still enjoying the touch.

“If I hear of anyone pulling knots early, we’re going to talk about it, and no one will enjoy that talk. As I said, you are all too young to employ sexual chastisement. Keep your omega knotted for the duration, and consider plugging if you think they need longer ejaculate-assisted relaxation. Any questions?”

Todoroki raises his hand. “What about sharing?”

Shouta nods. “Sharing is wonderful. In tight-knit packs, sharing is a good bonding activity for alphas. Omegas have more than one hole, after all.” Shouta doesn’t miss the way Todoroki and Kirishima lock eyes across the room. 

“I will warn you, however, that despite what you might see in pornography, few omegas can tolerate double knotting without extensive training. Most omegas simply do not have the space. Look at Bakugou’s pelvis.” Shouta stretches a hand across his lower back to emphasize the narrowness of his hips. “There’s barely room for two cocks, much less two knots. If you are going to share, remember: a relaxed omega is an elastic omega. You can always ask a third alpha to do a quick pre-fuck so that the omega will be cum-drunk for the main event.”

Kirishima whimpers and eases the ache in his teeth by biting his own hand, obviously very taken with the idea of sharing. It’s bizarre that he hadn’t already been keeping Bakugou on his knot. Hopefully, this lesson has emphasized Bakugou’s fuckability, on top of the pure mechanics of healthy sex.

The bell rings, a jarring sound after the more organic noises of their lesson. Bakugou whimpers and clings to Shouta. 

“Shh. It’s okay. You’re not going anywhere.”

The rest of the students begin filing out for lunch but Kirishima comes to the front of the classroom. 

“Thank you for the, uhm, lesson, Sensei. Should I bring back food for Bakugou?” 

“What a thoughtful alpha,” Shouta says approvingly. “You may bring him something small. I’ll plug him so he’ll be feeling quite full this afternoon.”

Kirishima licks over his fangs and then nods, holding in his objections. It’s natural that he wants Bakugou to smell like their pack, but if they had taken care of it already, Shouta wouldn’t have had to knot their omega. “Yes sir.”

He turns to leave, but Shouta says, “Kirishima, Bakugou will be prohibitively sore for a few days. He was very tight.”

Kirishima shifts foot to foot, looking at Bakugou’s bare skin.

“Almost like he hadn’t been fucked before.”

Kirishima blushes at the thinly veiled criticism. “He… acted like he didn’t want it.”

“And what do you think now?”

“… I think we should have taken better care of him.”

Shouta nods. “I agree. You can start now. Can I put you in charge of making sure that nobody fucks Bakugou until he recovers from my knot?”

Kirishima’s spikes bounce with the force of his nod. His eyes still watch Shouta’s hands on Bakugou.

“He’ll be ready to go by Friday night. And then?”

Kirishima’s eyes widen at the implication and he stands a little straighter. “Then we’ll take care of him, Sensei.”

A month later, things have turned around for class 1A. Ochako’s cheeks are fuller and there’s a bounce in her step that has nothing to do with her quirk. Kaminari’s hair is shiny, his mouth always smiling, his fingers sparking. Tsuyu and Aoyama have stopped sneaking off to pleasure each other during lunch.

And Bakugou? Thriving. His skin is so perfectly porcelain maybe there is some truth to those old wives’ tales about facials. His lips are full and red like he spends his nights sucking. His walk has a gorgeous swagger. His grades are excellent and his sparring somehow more energetic. 

His attitude isn’t any better, but now his pack recognizes it for exactly what it is. A plea for an alpha, or several, to show him that even if he’s at the top of the class, he always has a place under them. Or between them. Or over their knees.

Shouta does get the opportunity to lead a lesson on discipline during one of Bakugou’s weekly meltdowns. He spanks Katsuki’s ass and both his holes until they’re red and swollen, while coaching Sero to do the same for Kaminari. Eager little thing.

Once the omegas are in tears from pain and overstimulation, they’re bent over the gym mats. Todoroki eagerly steps in to fuck Bakugou’s ass while Sero knots Kaminari, who takes it like a champ. Midoriya throws a fit when Bakugou refuses him again, sulks in the corner, and still cums in his pants when Bakugou whines through the knotting.

After leveraging Bakugou’s pretty ass for a few more lessons, Shouta deems the alphas responsible enough to practice spanking on their own. Except for a few missed training days due to soreness and bruising, they handle the responsibility well. 

Shouta’s willing to attribute some of that success to Kirishima who has come out on top as pack alpha. He has a fair hand, and is always receptive to Shouta’s guidance if an omega needs more discipline or more cock. 

As pack alpha, Kirishima has to fuck everybody, but it’s clear that Bakugou is his favorite. They walk to class together every day, often with Todoroki as well. It makes Shouta smile to think about the two of them caring for Bakugou together. There’s an old saying that an omega who has big thoughts is an omega who needs two knots.

Bakugou may scowl at them, may call them names like Shitty Hair and Peppermint, may slap their hands away, but he’s getting what he needs. Each morning, when Bakugou passes by Shouta’s desk, he smells like cum, and each afternoon, when he changes for gym class, there are fresh handprints on his ass.