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Shouta pinches his nose in frustration while he shoves his hand in his pocket to rub his finger over the device he keeps there for just such occasions. While he could easily just bend the mouthy omega over and stuff him with a knot to get him to shut up, Shouta finds that this tool tends to work better for longer-lasting effects.
It’s a proven fact that knotting soothes problematic omegas, the orgasm alone releasing endorphins that calm them from their heightened state. The orgasm will continue as long as the knot stays in place and the subsequent release of an alpha’s cum is the only thing that will taper the intense release down as the omega’s instinct to be bred is satisfied. However, Shouta has found that a knotting ring is an effective punishment should an omega step out of line, creating a constant orgasmic state that they can’t escape because there’s no alpha cum to bring them down. All he has to do is shove the little toy inside their leaking cunt and use the attached pump to inflate it until they’re stuffed to the brim to make them squirm and cry as they orgasm uncontrollably until he decides that they’ve learned their lesson. Sometimes, if he’s feeling generous and they’ve taken their punishment well or it was a minor infraction, he’ll shove his cock through the inflated ring and paint them with his cum at the end. However, if he’s particularly irritated and wanting them to remember his punishment well…he’ll keep them stuffed with the knotted ring until they pass out from exhaustion and overstimulation and then remove the ring, leaving them unsatisfied and feeling empty when they wake up. Knotting unmated omegas is a socially accepted practice, but Shouta takes it a step further while training future heroes. He wants his lessons to stick permanently and for them to also be a warning for others. He has no problems providing examples of exactly what happens when you misbehave in his class.
Currently, his eyes are narrowed on one student in particular…one who hasn’t taken Shouta’s lessons or warnings to heart. Shouta has yet to punish anyone from this class as they’re mostly well behaved and especially given that there’s only one singular omega in the entire group…yet, he’s let this go on for too long. The boy clearly needs more training after today’s failed exercise where he’d berated mock victims of a fake villain attack for getting in his way.
“Bakugou. Come here.”
Hushed whispers break out in the room as the omega’s ruby eyes widen at the sudden command. He shakily rises from his desk, clearly unused to alpha commands and his face morphs from shock into a defiant scowl. “What the fuck, sensei,” he growls as he crosses between the desks and makes his way to the front.
Shouta merely raises a brow at the rude comment as Katsuki comes to a stop in front of him. The brat is about to learn that his words have consequences, ones that Shouta is going to make sure that he doesn’t forget. “Strip,” Shouta clips out coldly and that defiant glare suddenly shifts into something a little closer to what Shouta wants…apprehension.
“Fuck you, I ain’t–” Katsuki starts to growl, even as his hands reach for the buttons of his shirt and quickly unbuttons it before shucking it from over his shoulders.
“You don’t have a choice, omega,” Shouta growls. “You’re going to learn to control that nasty mouth of yours. You know exactly what you did wrong today and it’s time you got a lesson of what happens to omegas that can’t control themselves. Now, Be Silent.”
Bakguou’s glare is deadly as he unzips his pants and bends down to remove his shoes so that he can slip the garment down over his ankles and feet. Shouta smirks as pale skin flushes bright red with embarrassment when his student pulls down his boxers. A wave of appreciative murmurs can be heard and even Shouta can admit that the omega is fucking stunning, especially with the perfect bare pussy between toned legs.
Shouta can tell that his student is itching to say something as he looks nervously around at all of the eyes currently focused on him. The omega’s blush runs all the way down his chest.
Shouta strikes out quickly and grabs the back of Katsuki’s neck, pinching down over both glands on either side simultaneously while rotating both of them. Katsuki’s legs practically give out beneath him as he’s scruffed and Shouta shoves his upper body down over the desk, earning him a surprised yelp. “Stay ,” Shouta snarls and blinks in surprise as Katsuki’s usually smoky caramel smell blasts out from him in a wave of unexpected arousal. Oh…
Shouta’s cock kicks in his pants at the heady scent that has many of the class alphas groaning out loud. He can’t look at them though, suddenly honed in on the omega squirming naked over his desk and smelling sinful. The smell sweetens as he pins Katsuki there, making him smirk…Katsuki is acting just like a proper omega should and Shouta has no doubt that when he touches that pretty pussy, the little omega will be dripping wet. The poor thing probably thinks he’s about to be knotted, but Shouta has other plans in mind.
He stands up straight, leaving Katsuki to cling to the desktop over trembling legs, satisfied when he hears a small needy whimper. “Now, I want everyone to pay close attention,” he addresses the class in a firm voice. “Sometimes, omegas experience hormonal changes that can affect their mood and actions, thus why unmated omegas need to be regularly knotted so that those pesky hormones can be soothed and the omega can be regulated back to a base level. Katsuki here is not regulated and clearly hasn’t had a knot in some time. Unruly omegas must be corrected quickly and efficiently with either rewards or punishments. In this case, Katsuki has earned himself a punishment.” He barely chokes back a laugh, watching as a few students start jotting down notes in their workbooks in between heated looks at Katsuki.
He turns back to the student in question. “Spread your legs, omega ,” he commands and Katsuki’s legs slide over the hard floor as they fly wide and his pink pussy lips become more visible. Shouta bites his lip at the hint of wetness already starting to gather and make the lips shine. Clearly, his student gets off on a little humiliation. Shouta wants to see more, wants to ramp Katsuki up so far that his head spins. “ Spread yourself open and show everyone what a slutty omega pussy looks like.” Should he use such foul language in front of a class of budding young heroes? Probably not. But he’ll admit that the nearly overwhelming scent of aroused omega has his own alpha chomping at the bit.
Katsuki’s fingers shake as he reaches back behind him and spreads himself open, putting his shiny cunt on full display for the entire class just as wetness begins to trickle to the floor. There’s a series of sharp inhales and suddenly the room is practically inundated with the smell of aroused alphas. When Shouta glances over them, every set of eyes is glued to Katsuki, especially the three alphas: Kirishima, Todoroki and Midoriya. Even the betas are practically drooling at the sight. Kirishima is already palming his hard cock through his pants and Todoroki’s knuckles are practically white as he grips the edge of the desk. Midoriya is mumbling something so rapidly that Shouta can’t really make out from this distance. Shouta can’t blame them and wonders if this is the first time some of them are seeing an omega’s breeding hole for the very first time.
He turns back when he hears Katsuki whine. He’s punished and rewarded many omegas over the years, but he can already tell that this one is going to be his favorite as he pulls the device out of his pocket and holds it up for the room to see. “How many know what a knotting ring is?” he asks out loud, struggling to keep his voice as level and neutral as possible.
Only one hand shoots into the air. Of course, it’s Yaoyorozu. “It’s an inflatable device that you insert into the vaginal canal to simulate a knot and force an omega into a state of prolonged release. It’s also used to dilate the cervix and make them susceptible to impregnation,” she states in an official voice as if she’s reciting a definition directly from a textbook.
“That’s correct,” Shouta purrs and reaches out to swipe his fingers firmly through the wetness between chubby pussy lips, massaging over the twitching opening and up over a swollen juicy clit. “When used correctly, a knotting ring is an effective form of punishment while an omega is subdued and is unable to remove it. It forces them into a heightened state of orgasm to the point of being overwhelming and also opens their cervix for breeding. The hormones released force the omega’s instincts to take over and thus provoking a reset for the conscious mind. The orgasmic state can only be soothed once the cervix is coated with alpha cum. Even after the ring is removed, an omega will crave for the process to be completed and thus teaching them the lesson to seek a knot out willingly before their emotions get the better of them,” he explains, voice gritty as his cock leaks into his boxers at the sight of what is probably a virgin hole. He doubts Katsuki has ever had a knot before. Based on his bad attitude, Shouta is guessing not. This omega is clearly lacking discipline.
He grits his teeth as he pushes one slick finger through the tight clinging entrance and confirms his suspicions. He’s forced to twist and wiggle the digit just to bury it further while Katsuki squirms and huffs out a strained wheeze. He rounds on the alphas in the class and gives them a sharp look. “This omega’s pussy has clearly never been used and as class alphas, it is also your responsibility to look out for your pack omegas. Katsuki is a prime example of an omega that has gone too long without a proper knotting. Now that you know the signs, it is your job to make sure that he gets regular knottings even if he protests. Part of protecting your pack is making sure all of its members are stable and regulated.” All three alphas look properly ashamed and nod their heads in agreement.
He pumps his finger a few times as he talks, using it to pull at the constricting walls and forcing them to loosen just enough. Katsuki lets out a little yelp when he shoves a second finger in and twists the combined digits. He tsks his tongue in mock disappointment. “If you would’ve sought out a knot, omega, you wouldn’t be in this position. I wouldn't have to waste valuable teaching time on opening you up. This cunt would be nice and relaxed. As it stands right now, I can’t even fit the ring in and I haven’t even inflated it yet. You’re on suppressants, Katsuki…this hole should always be dripping and loose with alpha cum. Given your volatile nature, I’m going to task your class alphas with making sure that you’re knotted multiple times a day. Consider it mandatory homework.”
Katsuki’s hole makes the sweetest squelching noises as his sweet smelling slick starts to trickle down his thighs and pool on the floor below. He writhes over the desk as he’s opened and Shouta is entranced every time he gasps or his pussy clamps down. Shouta is almost tempted to skip the ring all together and stuff him until he cries, breed his womb until the little omega smells like him for weeks. He glances over at the other alphas, who have already impatiently pulled their cocks free and are stroking themselves openly.
Katsuki mewls when Shouta crams a third finger in and he blinks in surprise when a splash of slick suddenly sprays from the little hole. He hadn’t even been trying to get the little omega to cum, but he’s definitely not disappointed when Katsuki’s pussy flutters wildly around his fingers and slick gushes from him in torrents. His mating fangs drip venom over his tongue at the lewd sight as Katsuki bucks against his desktop and cries out like an animal being mounted.
For a moment, Shouta imagines what his pretty student would look like in the throes of heat, begging hoarsely for a knot, tangled up and sweaty in a nest. He fantasizes about ramming his cock through that squirting cunt over and over until Katsuki’s belly swells with the amount of cum fucked inside him. All omega heroes (as rare as they are) are required to be on pregnancy suppressants, but Shouta daydreams about breeding the feisty brat until he’s fucked full of a full liter and imagines how good the petite blonde would look fat and pregnant, forced to waddle under the weight of the pups inside him. He pumps his fingers harder through convulsing walls, coaxing more of the release forward while his other students groan and pant heaving aroused breaths behind him.
Time to continue today’s lesson. Katsuki is still squirting when Shouta yanks his fingers free and positions the ring at his entrance, letting the hand pump hang free between shaking legs. Using all three fingers, he forces the ring past chubby slick lips and sinks it through spasming muscles, cramming it as deep into Katsuki’s pussy as possible. The little omega squeals at the stretch and Shouta smirks when he pulls his fingers free to grab the pump. He gives only a single pump to start inflating the ring and Katsuki’s noises heighten in pitch. The omega starts clawing at the desk as Shouta pumps his hand three more times, inflating the ring to an average sized knot. Slick pours from Katsuki in waves, gushing to the floor below. Typically, a true knot would block the entrance and keep the slick from escaping, but with the way the ring is designed (like a doughnut), it allows the slick to free-flow and allows for the omega to be fucked through the center with multiple loads with the intention of keeping the omega forced open and providing unfettered direct access to the widened cervix.
Call Shouta a sadist, but he enjoys watching Katsuki struggle and wants this lesson to be memorable…He pumps his hand three more times, watching as Katsuki’s pussy starts to gape with how large the ring inflates inside him. When he checks on the class alphas, many of them are salivating at the sight while pumping their cocks furiously. Even the betas have their hands down their pants. The room reeks of sweat and aroused pheromones. Hmmmm…perhaps his entire class could stand to let off a bit of steam.
He lets the pump drop back down to dangle between Katsuki’s slick-coated legs while the omega continues to howl as he squirts continuously and vibrates over the desktop, only Shouta’s command keeping him pinned in place. “Alright everyone, make yourself decent. Time for quirk training,” he announces, wiping the excess slick from his hand on his jumpsuit pants.
There’s a collective groan from the class as they shuffle to tuck themselves away and clean up. Kirishima is the first to approach him, the alpha’s pants tented visibly. “What about Katsuki, sensei?” he asks, voice barely above a feral growl and his eyes still focused hungrily on Katsuki’s spread and spraying hole.
Shouta straightens his scarf and reaches back to pat over the plush cheek of his student’s ass. “Katsuki is going to sit this one out and learn his lesson.”
With those damning words, the class filters out of the room… Katsuki’s desperate cries echoing down the corridor of the hallway as they file out of the building.
—
One hour later, the halls are silent as they parade back inside, sweaty and covered in grime. Smug satisfaction fills Shouta the closer they get to the door and the scent reaches his nose…syrupy and sweet…the janitors are going to have one hell of a time with that floor this evening. A pitiful whimper is the first thing he hears upon opening the door and grins at the sight of the limp quivering omega, still where he left him, bare feet standing in a pool of his own slick. He students all pause, gathered in the doorway, absorbing the sight of a properly used omega. Shouta is the first to break from the trance as he treads cautiously over the slippery floor and rounds the desk. Katsuki’s eyes are closed and fluttering where his cheek is smooshed against the desktop. As if sensing his presence, ruby eyes barely crack open and meet his gaze, hazy and distant.Those eyes hide once more as a whole body shudder rolls through the poor thing as more slick rushes from him in a river to the floor.
Shouta leans down and brushes sweaty blonde bangs away from Katsuki’s forehead and the omega willingly leans into his touch, an indication of his submission. “Have you learned your lesson?” Shouta growls in a low tone. Incapable of anything more, the omega gives a slow weak nod with a scratchy whine, clearly wrung out and deep into his instincts as even more slick rushes down his thighs. “Good boy,” Shouta purrs, running his fingers through soft blonde hair. “Would you like your alphas to stuff your pretty cunt and dump you full of cum? Answer me.”
He’s surprised when the omega shakes his head slowly. “Want you, alpha,” he mumbles, shivering and clenching his eyes closed with another wave of slick rushing from his cunt. “Please, sensei…” he whines, his voice pitching high.
Shouta’s cock had already been half-hard from just the scent in the room alone, but hearing Katsuki beg for HIM has him thickening painfully fast. He leans down, pleased beyond measure at his student’s response to nuzzle his nose against Katsuki’s. He hears a murmur pass through the students behind him, but he dutifully ignores it. He’d expected Katsuki to beg for just any alpha to end his torment, but no…As per usual, the omega defies expectations and Shouta couldn’t be more smug about this development. He’d tasked Katsuki’s peers with making sure that the omega is regularly knotted, but he’ll admit that the idea of doing it himself holds a certain appetizing appeal. “You want my knot, omega?” he purrs quietly, wanting the words to stay just between them.
Katsuki lets out a low whine, body twitching as another weak orgasm rolls through him. A singular tear drips from the corner of his dilated eyes. “Sensei, pleeeeeeeease…” he whimpers. “I-I’ll be so good, I swear,” he whispers hoarsely and Shouta’s cock kicks heavily over his swollen balls, aching from the simple promise.
Shouta pecks a soft kiss to Katsuki’s nose as a reward. “Good boy…” he purrs. “From now on, you’re going to come to me when you need your pretty pussy knotted,” he blurts before he can think better of it, images of his pretty student riding his cock while he grades papers bombarding him.
Katsuki’s eyes widen and he nods demurely. “Yes, Sensei…” he murmurs, his body shivering and pupils the size of saucers. Shouta leans further down and licks over slightly parted lips, suddenly needing a taste and Katsuki lets out a low groan as his tongue darts out to meet his teacher’s. Shouta wraps his fist in shaggy blonde hair to tilt his student’s face just enough that their mouths can truly slam together and he devours inexperienced and fumbling lips. He wonders if this is the omega’s first kiss for a moment and a bolt of panic zips through him, but then he realizes that he’s also about to take another first from his student. He’s going to be the very first to sink his knot into Katsuki Katsuki’s pussy, the first to stuff his little womb with alpha cum…Being the first to taste his lips is a minor thing in comparison. He finds that he wants to be this particular omega’s first everything.
Katsuki whines and chases his lips as he pulls away, but Shouta leans down to rub his neck over the omega’s to soothe him. Their oils glide smoothly together…Should he have scented a student’s neck directly? Absolutely not. It’s considered the highest form of intimacy and usually only reserved for bonded mates, but he can’t find in himself to be sorry when he pulls back and watches pretty ruby eyes roll upwards as swollen lips part for heightened aroused breaths. When he turns back to his class while the blonde is lost in the haze of alpha pheromones, he meets a lot of slack jaws and wide eyes. “Change of plans, class,” he announces with a stern look that has many of them closing their flabbergasted mouths and shifting to attention. “Katsuki has learned his lesson and has earned a reward.”
He eyes the alphas in the room who seem to be preparing for him to call them into action, making him smirk. Not today, little alphas. “Everyone, take your seats. Today you’re going to learn how to please an omega and reward them for good behavior.”
It takes them all a moment to process, but slowly they start filing towards their desks. He can’t help but notice the look of disappointment on all three alphas. As the pack alphas, this will be a sting to their pride, but Shouta is also teaching them a lesson in the process (to take care of the omegas under their charge). He can’t keep Katsuki from them as the class’ only omega, however, sometimes omegas will choose a “favorite” alpha to service them and their needs, often referred to as a “prime alpha.” By scenting Katsuki’s neck directly and being the first to knot, he’s cheating Katsuki’s biology. Even if it was unintentional at first, Shouta’s alpha is salivating over the omega choosing him. It’s unusual for an omega to choose one outside of his bonded pack, but Katsuki has never, in any sense of the word, been traditional.
He turns back to his student, his boots dripping with the slick that has created a large puddle surrounding his desk and a rumble crawls from his throat when his eyes land on Katsuki’s pretty pink pussy lips, gaping open from the ring inflated inside. He takes two steps until he’s right behind him, giving the class a perfect view from the side as he grabs the two perfectly perky globes of the omega’s ass and kneads the firm flesh. Katsuki groans and Shouta watches his eyes flutter at just the small touch. “Such a pretty omega,” he coos, letting the praise fall from his tongue easily. Katsuki really is the prettiest omega he’s ever seen. While his student is a notorious brat, even Shouta has imagined him many times with his hand locked around his knot and cumming into his fist at night. “You took your punishment so well…”
Katsuki shudders with a moan when Shouta releases his cheeks and grabs for the pump still dangling between Katsuki’s legs. “We’re gonna need a little more space though if I’m going to fit my knot into your pretty cunt though,” he growls and squeezes the pump three times in quick succession. Katsuki squeals at the new pressure, hips bucking against the desk as a new flood of slick pours from his pussy. He practically vibrates over the desk, sweat dripping down his back and face. Shouta drops the pump once more and strokes over tense back muscles, his cock threatening his zipper’s integrity. Katsuki whimpers and moans as he cums continuously and when Shouta glances at the class, many already have their hands back down their pants. Relatable… Shouta unzips his jumpsuit to free his straining cock and he hears a gasp from his students as his long thick veiny shaft is revealed. His tip is flushed and bright red, pre already beading from the tip.
“Alpha, knot,” Katsuki pleads, begging as if he’s in heat, sounding completely out of his mind…which brings a whole new set of images to Shouta’s mind of knotting his student over and over for days on end, breeding his pussy full of cum.
“Don’t worry, baby,” Shouta mutters quietly. “Gonna give you a nice fat knot for your first time,” he promises and doesn’t hesitate to thrust right into the omega’s hole with a wet squelch. Katsuki’s scream mixes with Shouta’s groan. Even with the ring, the fit is snug over his large girth. Fuck, what would it be like to fuck this cunt without the ring making it gape?
Shouta grips tightly to Katsuki’s hips as he pulls back to the tip. Katsuki is babbling helplessly and his cunt clenches down tight over Shouta’s shaft as if begging him not to leave. “Please, alpha. Please fuck me. Breed me full. Need it. Need your cum. Please…please,” he stammers out in a scratchy barely there whisper. Shouta can feel the heavy eyes of his class as he rams back in and makes Katsuki moan when his tip bumps against his exposed cervix. “Yes, alpha. Right there,” Katsuki hisses through clenched teeth and Shouta can tell that the omega is dying to thrust his hips back to meet him. He pulls his cock free with a wet squishing sound that has many in the class sucking in sharp breaths.
“On the floor. Present, omega.”
Katsuki practically collapses to the floor, slick splashing upwards as he drops to his hands and knees before lowering his chest into the pool coating the floor. Shouta is in awe of the stunning sight of Katsuki’s perfectly arched back, glistening pale skin, and exposed hole while the omega presents in a lake of his own cum. It’s the most erotic scene he’s ever seen and he’ll never forget it as long as he lives. Something possessive roars in his gut as he kneels down behind him, not caring that slick and cum are now soaking through his jumpsuit as he plunges his cock back into the gushing hole, making Katsuki squeal and buck.
Shouta isn’t gentle as he starts plowing inside with hard deep thrusts that kiss the open cervix with every stroke. Katsuki bucks rocks to meet him with mewling desperate sounds that have Shouta gripping his hips bruisingly. Shouta snarls when the scents of the other aroused alphas in the room swells around them, so he lets off more of his own to combat it. The only alpha his omega should smell is HIM. Katsuki shudders with a deep inhale the moment it reaches his nose. “A-alpha, knot,” he rasps, his claws dragging helplessly over the slick floor above his head. Slick gushes out around Shouta’s cock in waves, dousing him thoroughly with Katsuki’s sweet scent. He’ll reek of the omega for days after this and Shouta’s alpha is practically throwing a proud parade.
The knot swelling around his shaft is painful and throbbing as his balls swing low and heavy with every clap of their skin together. Only the sounds of their heavy breathing and wet squelches fill the classroom as Shouta’s students watch and get themselves off to the sight of their coupling. Shouta doesn’t even feel their eyes anymore, so focused on the omega in front of him. Katsuki feels so perfectly snug around his cock that he groans towards the ceiling as he rails into him with merciless strokes. Spasming plush walls grip him while Katsuki continues to cum over and over and over again.
“Alpha…” Katsuki sobs, his face dripping with sweat and half immersed in his own slick where it’s turned to the side over the floor.
“Almost there, baby,” Shouta promises through a huffing growl as his knot finally starts to beat against Katsuki’s abused pussy lips. “Gonna fill you up, omega.”
“Pleeeeeease,” Katsuki whimpers pitifully, eyes crossed and fluttering.
Just the simple pleading word has Shouta tightening his claws in bruised hips and yanking Katsuki back while he crams his swollen knot in through the ring, slamming his cock head flush to Katsuki’s open cervix. A guttural roar reverberates from his chest as his knot instantly inflates to lock them together and Katsuki squeals as his cunt is blown outwards with pressure. Grinding in furhter, Shouta clings to the small omega as cum begins to spurt from his cock to bathe the opening to Katsuki’s womb. A dark part of him is whispering about breeding…about stuffing his student with pups and making his belly fat with his offspring, but he barely bites back the words at the last second. He feels the moment Katsuki’s torment comes to an end as he’s pumped full of cum when the omega goes limp under Shouta’s hold, only kept aloft by Shouta’s claws. Katsuki goes silent, panting exhausted breaths with his eyes closed.
“Holy shit,” someone in the class mutters. Shouta isn’t sure who, but his eyes glance up sharply from where he’d been examining his omega.
Wide eyes greet him as many students are tucking themselves away and various fluids are coating the classroom furniture. He already knows that he’s going to have to report this…and imagines the impending headache of the cleanup. Then again, Nedzu has eyes everywhere and has no doubt already made the necessary arrangements. The voyeuristic rat probably cackled during the entire show. “You are dismissed,” he snarls, suddenly aware of the none too innocent looks of the alphas in the room and currently his alpha feels challenged and protective over the weakened omega stuck on his knot. MINE.
The class is near silent as they pack up and practically flee the room like their asses are on fire, leaving him alone with Katsuki. While he waits for his knot to go down, he pets over the damp sweat-slick skin of Katsuki’s hips and lower back. “Such a good omega for me. Did so well. You did perfect, Katsuki…” he murmurs softly even though he doubts that Katsuki is in any state to hear his praises. Eventually his cock slips free and is allowed a moment to watch as his cum begins to drool from Katsuki’s used hole. He admires it for only a second, determined that it’s a sight that he’ll see again…hopefully, in the very near future. He quickly grabs the pump and twists the valve to deflate the ring before gently thrusting his fingers into Katsuki’s creamy pussy to remove it. The moment it pulls free, Katsuki subconsciously slumps into a heap on the messy floor.
The omega’s breaths are soft and even when Shouta stands to tuck his spent cock away and zips up his now thoroughly soaked jumpsuit. He crouches down to loop his arms under his limp unconscious student and immediately pulls him to his chest as he picks him up. Katsuki’s scent is still heavy and gooey in the air, smelling satisfied and content…also smelling heavily of Shouta. He smells like Mate …and a heavy rumble starts in Shouta’s chest. At the sound, Katsuki’s pretty eyes crack open slightly and he nuzzles against Shouta’s chest in a surprisingly affectionate gesture. Shouta nearly drops him in shock when a strong purr greets his ears. An omega’s purr is only reserved for those that they implicitly trust…and like neck scenting…it is only for those an omega has developed some sort of intimate bond with. Before Shouta can question Katsuki about it, those pretty rubies fall shut again and Katsuki’s head flops back heavily against his arm, once more lost to unconsciousness.
Shouta tugs him closer and takes a moment to just enjoy having Katsuki in his arms. It’s been a long time since he’s been intimate with an omega and his alpha is luxuriating in having this one so close. It’s dangerous…the attachment that seems to be growing deeper by the second. Shouta doesn’t even bother to gather his things as he carefully navigates the wet floor and strides towards the door. He should be taking Katsuki back to his dorm, should be responsible and put him in his own bed. But, his alpha has other plans. He needs Katsuki in his den NOW. He needs to tend to his pretty omega and hold him close, dote on him and clean him up. He needs to inhale more of their combined scent while feeling more of Katsuki’s bare skin against his. The need is nearly overwhelming.
However, the moment he opens the door. An aroused alpha scent wafts into his nose and instantly makes his hackles rise territorially.
“Looks like he finally earned a punishment, huh?” Mic teases from the hall as Shouta kicks the door shut behind them. Shouta watches the other alpha’s eyes narrow down through his shaded glasses on the omega in Shouta’s arms with lascivious intent. “Been wondering when we’d get to see the pretty little listener open for use,” he purrs, eyes darting back up to Shouta with a conspiratorial expression.
An animalistic snarl tears from Shouta as he bares his fangs. “Don’t even fucking think about it,” he growls, tightening his arms around Katsuki protectively.
Mic’s eyebrows raise into his hairline at the display. “Sho–” he starts hesitantly and puts his hands up in front of him. “You good, man?”
Shouta takes a menacing step forward as his hair floats up into the air and his scent radiates outwards in his fury. “This one is fucking mine,” he grits out through clenched teeth, suddenly wanting to rip his best friend in half with his bare claws.
Mic gives him a hard inspecting look, but wisely takes a step back. “Sho–”
“Fucking MINE!” Shouta roars, the sound echoing in the hallway.
“I’m not going to take him from you,” Mic says carefully and starts to steadily back away. “Gotcha, man. The little listener is off limits. I read you loud and clear.”
Shouta’s breaths saw in and out of him, instincts not satisfied until Mic turns his back and quickly makes his way back into his own classroom without another word.
Needing to reassure himself, Shouta tucks his face down into Katsuki’s soft hair and takes deep inhales of his omega’s scent, addicted to the way it sticks in his nose and soothes his alpha down from the adrenaline high. He mindlessly prowls down the hallway, ignoring the curious eyes from classroom doors as he makes his way out of the building on autopilot with only one thought pervading his mind. He needs Katsuki in his territory where he can protect him and keep him secluded. He doesn’t remember the rest of the walk through the quad and to the teacher dorms.
It isn’t until he’s shutting and bolting the door to his apartment that he feels like he can take a relieved breath and the tension bleeds out of him. He makes his way to the bathroom and somehow manages to start the water without setting Katsuki down. The idea of his omega being separated from him almost feels like agony. This had started out as a punishment for his student, but something has now shifted drastically within him. He can’t explain it, but right now everything is screaming at him not to let the omega out of his sight. It’s only with great reluctance that he is forced to set Katsuki down gently and strip his own clothes quickly. He’s careful as he picks up the still slippery slick-coated omega and settles into the bath with Katsuki reclined against his chest. Even in his sleep, Katsuki turns and nuzzles his cheek against Shouta’s chest hair before settling again with his loud purr. Shouta is meticulous as he bathes every inch of Katsuki’s fair skin, trying to battle back his own pleasure at seeing the faint bruises starting to form. The way they’re reclined, his eyes are drawn to the long line of Katsuki’s tilted neck and the tender unmarked skin of his mating gland. Shouta can’t resist as he leans down and drags his tongue over the oily surface and his eyes roll back at the sweet perfection that gathers in his mouth. He worships the gland with licks and gentle suckling as he wraps his arms tightly around Katsuki and pets over his soft belly and plush chest.
It feels like only moments later, even as the bath water has cooled, when he hears Katsuki’s breaths quicken with awareness. He tightens his arms, not wanting Katsuki to startle and bolt from the bath. “Are you awake, omega?” he murmurs quietly, rubbing his nose soothingly over Katsuki’s gland, unable to pull away from the font of sweetness now that he’s tasted it.
“...think so…” Katsuki mumbles groggily and stirs slightly as he shifts between Shouta’s legs.
“You’re in my den, baby,” Shouta rumbles quietly and presses a gentle kiss to Katsuki’s neck. “You’re safe.”
Katsuki shifts a little more, settling more heavily against Shouta, purr revving a little louder and scent swirling with absolute contentment. Shouta knows it’ll be awhile before the hormones settle after being knotted for the first time. He wonders how his fiery bratty student is going to react to this sudden development of being in his teachers arms and in his–
“Should get punished more often, alpha…” he suddenly whispers.
Shouta blinks at the statement and looks down to where ruby eyes are tilted upwards at him, soft yet alert. It dawns on him then… “Katsuki, were you acting out on purpose instead of seeking a knot from one of your class alphas?” he growls.
Katsuki gives a soft half-hearted smirk, eyes drooping suddenly as he yawns. “Got your attention, didn’t it?”
Surprise filters through Shouta and he takes a moment to process that his student did this on purpose. “You wanted me to punish you?” he questions for clarity.
“I wanted YOUR knot for my first…” he mumbles almost shyly. “Don’t want the extras,” he then adds quietly.
Katsuki wanted him. Katsuki did this on purpose to trick him into action. Shouta should be furious that he’s been duped, but his stupid alpha has settled on being proud and smug that his clever little omega wants him and him alone…and was willing to be punished in front of all of his peers just to get it. “You could’ve just asked, omega,” Shouta purrs, amusement littering his tone.
“You would’ve said no…” Katsuki sulks.
Shouta thinks on that for a moment. Traditionally, he doesn’t knot students unless it’s for a punishment that he’s doled out (and that’s only if they’ve done well), so Katsuki might have a point. If Katsuki wouldn’t have acted out, Shouta would have refused to get involved and would have referred his student to his class alphas. But now that the deed is done, he wants to riot at the thought of anyone else knotting Katsuki’s sweet hole…He’s hesitant to admit it, but Katsuki is right. And now that he’s had a taste, he doesn’t think he can let him go. Well played…
“Are you mad?” Katsuki then asks in the smallest insecure voice that Shouta has ever heard from his passionate and stubborn student.
Instead, Shouta’s cock kicks beneath Katsuki’s ass. Tactically, the move was brilliant and he admires it…His alpha is practically giddy that now he doesn’t have to share. Katsuki CHOSE him. “That depends, omega,” he purrs, giving Katsuki’s gland a small nip of his teeth, making the omega suck in a sharp breath.
“On what?” Katsuki asks breathlessly and Shouta smirks at the arousal that suddenly blasts outwards from Katsuki’s gland while slender legs rub together under the surface of the cool water. He’s honestly surprised that his student is rebounding so quickly after cumming for hours straight and being knotted so recently.
“Now that you have my attention, sweet omega…are you going to let me keep you?” Shouta growls just behind Katsuki’s ear as his hand trails slowly south over Katsuki’s smooth belly. The skin under his fingertips shivers and Katsuki arches upwards into it as if encouraging him to go lower.
“Alpha,” he rasps and Shouta’s scent thickens with his own arousal at the title.
“Are you gonna be MY omega, Katsuki?” Shouta whispers and presses a kiss just under Katsuki’s ear.
“Yes…” Katsuki hisses through his teeth as Shouta’s fingertips reach his swollen clit and start to circle around it slowly.
Shouta hums, pleased at the answer, elated that there’s only pure submission radiating from the most unruly omega that he knows. As if he can hear Shouta’s thoughts, Katsuki’s neck tilts further to the side and his hips start to roll up under Shouta’s touch.
“Does my greedy omega need more ‘punishment’?” Shouta teases, bending them forward slightly so that he can notch their necks together. He sighs as their oils glide together and their scents mix together in an intoxicating unique blend that Shouta can’t get enough of. He takes the opportunity to dip two of his fingers into Katsuki’s tight cunt and groans at how far the little hole has already shrunk down and clenches tightly over just the two digits.
“Yes, alpha,” Katsuki sighs and bucks under the onslaught of Shouta’s mating pheromones and the curling of his fingers. Shouta takes a moment to tease at Katsuki’s sweet spot and work him into a frenzy. Suddenly, Katsuki pulls away from him and for a moment, panic bolts through him. But then, Katsuki shifts up over his knees and rotates in Shouta’s big tub until the omega is facing Shouta with a half-lidded and heated gaze. “Wanna ride you, alpha,” he murmurs and Shouta’s half-chubbed cock stiffens to full mast in record fucking time.
Shouta’s hands lash out to grab Katsuki’s slim waist and yanks him forward until the omega practically tumbles into his chest. “Then ride me, omega,” he growls when a quirk calloused palm brushes through his chest hair. Katsuki gives him a victorious smirk as he positions himself up on his knees. Shouta is enamored as Katsuki looks down at him while he grabs his cock between them and positions it just below Katsuki’s entrance. The air gusts out of him when Katsuki drops hard and fast, sinking to the root of Shouta’s cock with one slick glide.
“Fuck!” Katsuki gasps, his walls pulsing tightly around Shouta’s shaft as he buries his face in Shouta’s neck. “So big, alpha…” he whispers, clenching down and making Shouta hiss.
Shouta grabs his hips and grinds up into him until he brushes Katsuki’s cervix and the omega lets out a mewl that echoes in the bathroom. “Mmmm, it’s just because your sweet little cunt is so tight, baby,” Shouta responds through gritted teeth, lifting Katsuki up slightly and pulling him back down while pressing kisses to the omega’s shoulder. “Ride me, baby. Let alpha breed you some more,” he coaxes and groans when Katsuki lifts up on his knees until just the tip is inside and then thrusts himself down so hard that water sloshes in the tub and splashes out over the lip.
Katsuki moans freely as he sits up and starts a steady rhythm of bouncing up and down over Shouta’s cock. Shouta grunts and growls at the tight heat that strokes over his cock with perfect fucking pressure clinging to the shaft. Even with the water in the tub, he can feel the glide of Katsuki’s slick pouring from his hole around his cock. Water continues to splash violently out of the tub, but Shouta could give a shit less if they flood the apartment below his. This feels too fucking good as Katsuki speeds up, his sounds growing higher pitched as he fucks himself harder and faster using Shouta’s cock as a toy as his fingers curl hard into Shouta’s chest hair to anchor himself.
“Alpha, gonna cum–” Katsuki cries out suddenly, his walls convulsing and tightening even further.
“Cum for me, omega. Cum on my fucking cock like a good boy,” Shouta snarls and grabs Katsuki’s hips to pin them slightly in the air as he braces his feet in the tub and begins to piston up into Katsuki like a machine. Katsuki howls as his pussy is pounded and Shouta grins when slick begins to spray upwards over the remaining water in the tub, some of it even landing on his chest and face. He fucks hard and fast into Katsuki’s squirting cunt as his knot swells and rams over puffy pussy lips. The fountain bursting from his students cunt isn’t even done yet as Shouta suddenly drops his ass to the tub floor and yanks Katsuki down violently so that his knot rams into that spasming cunt and stuffs it full, inflating rapidly to seal the little entrance. Katsuki screams at being so suddenly filled while he’s still cumming and omega claws dig into Shouta’s chest.
Shouta doesn’t even see it coming as Katsuki suddenly leans down just as cum shoots in thick ropes from his slit. He roars as omega fangs suddenly strike the gland at the side of his exposed neck and euphoria radiates through his nerves and lights him up like one of Katsuki’s explosions. One of his hands winds into the back of Katsuki’s hair to pin him there as his omega marks him with a possessive mating bite. Rational thought is impossible as Katsuki squirms over his knot and leaves his mark on Shouta forever.
Shouta’s alpha snarls at him to make the decision right then and there. He yanks Katsuki’s head back from his neck, forcefully tilting the omega’s head to the side and lunges to sink his fangs deep into his student’s gland. Katsuki cries out as the gland is punctured and alpha venom injects deep into his veins. Shouta can never take the action back now, but his alpha howls in celebration at finding their mate.
Both of them collapse back into the tub, limp and boneless the moment Shouta releases from Katsuki’s neck. The omega’s eyes are still rolling from the claiming when Shouta wraps his arms around him and holds him close. “You’re mine, Katsuki,” he snarls and licks over his mark almost feverishly so that his saliva will heal the wound quickly and ensure the mark scars visibly.
Shouta knows that their mating will come under scrutiny. While underage mating is common and many omegas are mated off before high school…a teacher mating a student is uncommon, especially without the “courting” process, but Katsuki chose HIM…Katsuki marked HIM…His omega is clever and knows exactly what he wants. Shouta will have to keep that in mind for the future as he spoils him rotten and keeps him close.
Lesson learned.