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Katsuki’s burning the fuck up.
This hasn’t exactly been an only-today thing. The heat flashes, the irritation, the aggression, and need to control and dominate, and order — he feels like he’s going into rut, except on a little bit of fucking crack. It’s just a lot less fucking manageable today, and especially right fucking now.
Katsuki hasn’t been able to focus on shit for the last three classes, the last three goddamn hours stuck in this same fucking classroom with the walls closing in on him. Except, he’s the only fucking person who seems to think that’s the case. The heel of his shoe is repeatedly tapping against the classroom floor beneath his desk, fingers bruising with how much he keeps attempting to crack the bones in them. It’s loud. It’s fucking hot. And everything is itching and tugging at his skin the wrong way.
Especially with the goddamn nuisance sitting in front of him.
Deku keeps glancing over his shoulder worriedly.
Does that stupid thing where he chews on his pink, plump bottom lip before he turns back around with an anxious shuffle. It’s tripping him up, Katsuki — maybe cuz it doesn’t make sense, the way he can fucking smell the fear, the stupid concern dripping off the other Alpha. Or, maybe it’s the fact that he smells more than just all the bad stuff wafting off of him cuz Katsuki’s suffering just a few feet behind him.
Deku smells like … smells like rain. And then something soft, too. Something powdery like, like fucking florals and vanilla and cedar and — orange blossom. The mix of something Katsuki would smell after it rained, but also walking through a forest by a river early in the morning. With the butterflies and the sun peaking through the yellowish, emerald leaves of the trees.
Deku smells inviting.
He smells fucking good. So fucking good.
And Katsuki’s never ran into an Alpha with such a gentle fucking scent, it’s almost scary how deprived and crazed he feels about it. Like a subtle buzzing beneath his skin and just a little above bone, the fact that he feels like he’s been missing out on Deku’s scent since they were brats.
The confusion part — the part that’s got him all sorts of fucked up right now, is the fact that he’s smelling rain and vanilla cedar over any fucking Omega’s sent in class right now.
It’s gotta be like, like fucking — point of contact based or some shit. Round Face is a few seats over and he’s only getting subtle waves of her sickening bubblegum scent. And that cheese-eating sparkly fucker is way too far across the room to get any sort of hint of his usual citrusy scent. But it still wouldn’t make sense, not really.
Because, if that were the case, wouldn’t his mouth be watering over a fuck ton of other Alpha’s right now?
His leg bounces harder, and he swears his heart both slows in his chest and starts beating more intensely, so intensely it knocks the air from him.
Deku turns around again.
Katsuki grips his fucking desk, he feels someting inside of him switch, spike with the flare of his nostrils after he catches Deku’s scent again. What the fuck. What the fuck.
“Umm, Mr. Aizawa,” Deku says.
It’s distant, though. And he can’t hear the rest of it. Katsuki’s stuck now.
Stuck on the other Alpha’s skin, where a little bit of his neck is showing. Tanned. Freckled. Soft. Is it fucking sweet? Does it taste as fucking sweet as he’s smelling?
Katsuki wants a taste. Just a fucking taste.
He wants a bite. He wants to sink his fucking teeth into Deku’s neck and taste him.
He wants to see Deku — wants to see Deku … fuck.
Deku…
There’s a sudden, shrill ringing in his ear. High, sharp, fucking annoying. And a wave of overwhelming, sweltering heat hits him at once, immediately.
Mate. Mate. Mate.
Katsuki’s on his feet, maybe, he thinks so. He can’t fucking see – not really, and there’s a hand on his shoulder, ‘til there isn’t. Voices in his ear, ‘til he tells them to shut up. People in his way ‘til he tells them to move.
He can’t catch his breath. Can’t see his own fucking hands despite holding them up, in front of his own gaze. What the fuck. What the fuck?
Another hand on his shoulder — shit, more than just one, maybe. Fucking probably.
Off. Off.
“Get,” Katsuki feels himself growling the words more than he hears himself. “The fuck. Off.”
“Kacchan,” Deku. That’s Deku. The hands on him aren't, though. He can tell. Mate. Mate. Mate. “Mr. Ai—Mr. Aizawa, this – this feels like more than…”
Deku.
He looks like the cutest fucking thing in the goddamn world but Katsuki can’t really focus on his doe eyes and pretty bouncy curls right now. The walls are getting fucking smaller. The lights are getting dimmer. It’s fucking warm in this room and he can’t see shit clearly. He needs Deku. He needs to make him submit. Submit. Submit.
“Kacchan…I think—I think. Kacchan is - presenting.”
… Huh?
That’s not fucking true.
He presented seven years ago. Presented as an Alpha when he was eleven goddamn years old, a week before Deku presented.
“We need to get everyone out of here and secure the room!” Aizawa shouts.
It’s frayed at the edges, though. Sharp, fast, the same way Katsuki’s heart feels against his ribcage, breath rattling his insides, choking the same as he is on the spit in his throat.
He gets the urge to be louder. Louder than Aizawa, the Alpha of highest authority. He wants to be bigger. Stand taller. Command louder.
But with Deku not beneath him, across the room, all the way on the other side of it, so far away from where Katsuki needs him, from where he should be — beneath Katsuki, spread out for him, Katsuki has a different, much stronger urge.
“Kacchan doesn’t usually have a rut partner,” Deku explains, clearly not speaking to Katsuki himself, voice quick. Soft. Sweet. Alpha. Alpha. “But we could umm, always ask—” there’s ringing again.
Walls are smaller. Hotter. Mate. Mate. Hot. It’s hot. He’s burning up, he needs to fucking—he wants to bite.
It’s so goddamn hot, Katsuki’s fucking burning. He needs — needs … needs.
“Deku,” Katsuki growls. “Alpha.”
Katsuki’s panting. His eyes are wild, he can feel them, feel how crazed and wide they feel; fingers twitching as he begins to drag his way over to where he can blearily spot the smudge of green in the room. He feels his uniform sticking to his skin and frantically tries dragging it off his body, eyes ablaze and still set on Deku.
“Midoriya,” Aizawa says, calm, but serious. Urgent, as urgent as Katsuki feels as he marches his way over to Deku. “You need to leave now. If he’s presenting a second time, he’s presenting as a Prime. He’s challenging you.”
“Me? Wh–why me? You have more authority than I do!”
“Must be personal,” Aizawa sighs, agitated. “The aggression is strong.”
“If I go, he’ll challenge you next,” Deku argues. “If-if it’s both of us, we could restrain—”
“Midoriya.”
“I-I can’t leave Kacchan like this,” Deku insists. “I won’t, Sensei. Kacchan needs—”
Katsuki snarls and lunges, tackling Deku to the floor.
“Bakugou!” Aizawa shouts.
His fingers are sinking into Deku’s sides before anyone can register what’s happening. Nails break skin, teeth scrape against Deku’s collarbone, and he’s hunched over Deku’s entire form, both of his strong arms caging him in. Something inside of him flares, the air sharpens around him with his threatening scent as he snaps his teeth at the potential threat to Deku.
“This is mine,” Katsuki says, voice low.
He throws a look over his shoulder at their teacher, he feels fucking feral. Vibrating. Trembling. His breath is ragged, harsh through his own clenched teeth as his chest rises and falls rapidly, back hunched, shoulders tense. He holds onto Deku tighter from where the Alpha is trapped beneath him.
“Mine. Mine.”
Aizawa doesn’t move.
“Bakugou,” he says, still calm.
Katsuki growls, low and beneath his breath.
“Leave,” he says. “Not yours. Mine.”
He sees the faintest twitch of Aizawa’s brow. His eyes slide to Deku and Katsuki hunches over him even further, blocking him from view entirely as he bares his fangs, scent spiking dangerously and another, louder growl rips from his chest.
“LEAVE,” he yells, voice cracking and voice echoing off the walls. “Mine!”
Aizawa growls, a low, subtle thing.
Despite this, he raises both hands, takes a step back, and opens the door.
He leaves.
Katsuki immediately feels better with all the potential threats being gone. It’s just him and Deku now, him and what’s his.
Katsuki sets his gaze back on the boy beneath him. His. He needs him. He needs — he needs Deku to know. Deku’s shirt bunches in between Katsuki’s burning, itchy fingers when he tugs and pinches, and the catch of his breath when Katsuki grounds his crotch against Deku’s is goddamn beautiful.
“Alpha,” Katsuki growls. “Alpha. Submit.”
Deku’s wide eyes stare up at Katsuki, blinking slowly.
“Wha…what, Kacchan?”
Deku pumps out waves of vanilla cedar.
“Mine, Alpha.”
“Kacch—Kacchan’s u-umm, is Kacchan confused—?”
Thick, wafting pumps of rain and something a little sweeter when Katsuki continues rutting against him.
“Yield to me,” Katsuki commands. His shaking hands force up Deku’s uniform, shreds the middle of his button up to feet his skin. “Submit. Obey.”
He smushes the back of his hand against the line of Deku’s abs, head hanging, blond bangs brushing past his nose as he pants, quiet growls ripping from his throat every time Deku tenses beneath him.
Deku’s hands cup both of Katsuki’s shoulders.
“K-Kacchan,” Deku mumbles, voice rough. Something is fierce in his gaze, eyes blazing from where they meet Katsuki’s and he squeezes Katsuki’s shoulders. “Kacchan, you need an Omega. I-I can’t—”
Katsuki grits his teeth.
He seizes Deku’s raised hands, slamming them over Deku’s head, nails biting into his wrists, hard enough to make him wince. He squirms against the hold, face scrunched, tiny noises of complaint and protest squeaking from his throat as he fusses.
“Down,” Katsuki growls, using his body weight to keep Deku pinned to the floor, roughly grinding his hips down against Deku. He says, lowly, “Down, Alpha.”
Something in him wants to purr at the way Deku stays still and down beneath him. At the fog, the haze of submission slowly overtaking Deku’s eyes when another growl rumbles from deep within Katsuki’s chest.
“Kacchan … Kacchan’s presenting, hahh, as—a Prime,” Deku says, panting, voice far away. “Kacchan needs … needs—hanh,” he moans with another rock of Katsuki’s hips. “Kacchan c–can’t with—”
Katsuki ruts against him again. And again. Harder. He feels Deku’s cock beneath his own between their pants, picking up the pace as he humps against him faster, squeezing his wrists even harder to enforce submission.
“Mine,” Katsuki pants, legs squeezing harder around Deku’s waist. “Alpha. Mine.”
When Deku throws his head back at the next rock, the line of his neck is bare for Katsuki. Tanned. Sweaty. Flushed and freckled. Unmarked. Katsuki ducks his head, forces the crown of it in the damp spot of Deku’s neck, gets close enough to drag his scent gland against Deku’s. Deku throbs beneath him, a full body pulse as his hips buck up and dampens Katsuki’s pants with whatever spent spurting from the tip of his throbbing dick.
Deku’s scent thickens.
“Kacch, Kacchan,” Deku moans, breathing heavily, warm from where it puffs against Katsuki’s face. He throws his head back further, back arching with another pulse of his cock beneath his pants. “Kacchan, ‘m not…! Unn! Kacchan, nngh. We—we–”
“Haah, Deku. Good Alpha, good Alpha,” Katsuki pants, fucking against him faster.
He grabs onto Deku harder, nails sink into him deeper as he rubs their scent glands again and his hips stutter as he cums in his pants, trembling above Deku. Katsuki draws back only an inch before pushing closer against Deku, slamming his mouth against his, immediately tugging at his lips. He forces his tongue past, licking over Deku’s bottom lip and sloppily gliding over Deku’s own tongue as he pants into his mouth.
He keeps their mouths locked, keeps Deku pressed down and pinned to the floor as he messily unbuckles Deku belt, pushing down his pants, forcing up his shirt. Deku’s pink and tanned and freckled and flushed and beautiful. Good. Good. Good. Need. Need.
Katsuki doesn’t have the patience to wait for Deku’s pants to be entirely out of the way before he’s rocking his hips against him again. He goes back to Deku’s neck, breathing in his scent, using one hand to dig his nails into Deku’s side and clawing down the scarred skin of it. The other one rests just a little below where his face is buried to circle his neck and keep the alpha pinned to the floor. His mouth hangs, breathing hot against Deku’s flushed neck, his fangs still sharp and bared and bottom lip coated in his own spit as he drools against Deku. He fucks his hips in sharp, little animalistic thrusts, growls and grunts rumbling from his throat every time the tip of his dick bumps against Deku, Deku keeps scrambling at the floor, sliding down from the force of Katsuki’s thrusts. He pants wetly against the floor, growling cute little noises, breathing rough and ragged, clothes halfway torn and stuck to his skin.
“Deku,” Katsuki whispers hoarsely, dragging his still-clothed cock hard against the damp fabric still clinging to Deku’s wet, messy thighs. His touch is hot, and Deku’s burning skin does nothing to cool it. He feels himself swell up even more, feels goddamn bloated between his legs, from where his cock is resting heavy and thick against his own sticky thigh. Hot and sensitive. His cock throbs harder, tip pulsing and balls swelling from where they sag low as his chest heaves, fucking harder against Deku.
“Mine,” he growls, voice cracking, “ahh, unn, ah—fu-fuck!” He rucks Deku’s shirt up further, snarls and growls, snapping his teeth uncontrollably, like there’s something—something around that’s trying to fucking take him in this moment.
Deku sobs with a broken moan, spasming beneath him and Katsuki holds him down harder, snaps his teeth with another snarl as his eyes roll to the back of his skull. Another growl rips from his throat as he sinks his teeth into Deku’s neck and cums again. Thick, globs of cum spurt into his pants, pulsing through his veins in waves that have his hips jerking with every spurt as he bites down harder onto Deku’s neck, wetting his skin, making it flush a pretty red with marks from his sharpened canines as his hips still fuck in twitchy and choppy bursts. His chest is heaving, the tips of his fingers buzzing, and the world tilts when he finally stops cumming. He feels his thick cock sagging against his thigh in his pants, cum dribbling over his skin, racing down his leg from where it hangs, sopping and spent — only for half a second before that next wave of the need to mate rolls over him.
He hears Deku whimper.
It’s a quiet sound, a submissive, cute little sound that has the alpha in Katsuki blooming with fucking pride and satisfaction. More. He needs more. He needs more.
“Kacchan,” Deku croaks — kinda fuckin’ whines. “Kacchan, ‘m … hahh, s’mthin’s—”
“Alpha,” Katsuki croaks raggedly.
“Mm-mn. Kacchan,” Deku says again, shaking his head. “I—my …something’s… my….”
He doesn’t finish. His body quakes instead, he trembles violently in full body spasms as his fingers flex and his scent pumps out of him in thick, sickening waves. It makes Katsuki fucking dizzy — he doesn’t have the capacity to make Deku finish what he was saying before.
The world is still all fucking sideways. He can hardly see for shit, and Deku still feels like jelly and goo between his fingers. Sound’s still far away. He hooks his arm around Deku, and uses one hand on his hips to flip him over so Deku’s on his knees. Deku’s almost boneless despite the fact that they haven’t even actually fucked yet. Katsuki’s gotta prop him up a certain way on his knees, and rest a little bit of the body weight on his chest and shoulders as he shuffles over to hover behind Deku, resting heavy over him.
He presses one of Deku’s hands into the floor, beside his head full of green curls as he braces himself behind him. His other hand fumbles with his own loose belt, it clinks clumsily as he slides it through the loop before his pants sag and drop, pooling at his flushed knees. His body slightly sticks to Deku’s from where they’re pressed against each other with their sweat. Identical pink flushes are spread across each of them, and Deku’s skin glistens and shimmers beautifully, like glitter.
Katsuki’s dick hangs low, swinging and slapping against his thigh that’s got drying cum on it from his orgasm a minute ago when he shuffles forward. It feels — fucking heavier than usual and it goddamn burns. He wonders if he’ll have to prepare Deku, doesn’t wanna, but — but Deku should be able to take it, right? Rightrightright? Deku could take it for him. He could. He could. He could. Deku is strong. Deku is the best. The best.
Katsuki’s head falls forward when he presses against Deku’s ass. The best. Deku is the fucking best. He rolls his hips, and shifts so his cock drags along the cleft of Deku’s plump asscheeks. Then he pauses. If only for a second, as much as the fucking haze of whatever the fuck this is allows. And he blinks down at the clear string of something wet dripping from between Deku’s legs. Not his dick or his ass.
Deku’s squirming.
He looks up to see Deku’s pink lips are parted with small pants. His fingers are curled, pressing into the floor beneath, green curls stuck to his face, entirely drenched in sweat with his eyes rolling, and otherwise far away, red and teary and wet.
… Huh?
Deku’s gaze slides to him and he slightly widens his legs, more of that clear slick dripping. Almost — almost like the Alpha is goddamn presenting for Katsuki.
It smells … milky, suddenly. All around Deku. Sweet and milky and thick.
“Kacchan,” Deku swallows, licking his dry lips. “Wha…what … hh, what is that…?”
Katsuki’s head is all hazy again. He can’t … can’t think, he can’t… Pussy. Pussy, there’s—Katsuki. He can tell. Can smell it. Omega. Omega.
Deku? That’s Deku. But how? That doesn’t—he was just…
Doesn’t matter. It doesn’t matter, it doesn’t fucking matter, because Katsuki wants it. Needs it.
Katsuki sinks his teeth into his bottom lip. His hips and cock move on their own. His trembling hand slides between Deku’s thighs, two of his fingers find a wet opening, and as he sinks into the heat. Katsuki’s cock pulses and another small glob of cum spurts from the squishy head of his tip when his fingers get coated in the slick of Deku’s cunt. His — Omegan cunt. He smells like an Omega. Katsuki presses against all soft walls of the dripping pussy that seemingly came from nowhere, and rubs against the swollen pink clit as he drags them out. They're dripping, covered in that thick layer of milky slick.
Katsuki brings the fingers to his nose first, his dick twitching as he inhales the scent of Deku’s cunt.
Then, he pushes both digits into his mouth. Katsuki’s hips buck against Deku’s ass, cock pulsing as he groans around his fingers, swirling his tongue to soak up the slick mixed in with the musk of Deku’s pussy juices. Fuck.
Omega. Omega.
“Omega,” Katsuki growls. He squeezes Deku’s hips and hisses, “Presenting.”
“Hahh—how?” Deku sounds distressed, face cherry red, eyes wet and far away, and an exhausted air about him. “F-first Kacchan, ‘n now… ‘m. ‘M an Omega…?”
Mate. Mate Omega. Omega.
Mate Omega. Now. Mate. Mate. MateMateMate matematematematematematematemate—
Kastuki’s panting as his balls slap against Deku’s still-dripping cunt, clit engorged and spasming under the stimulation of both Katsuki’s sac, and the fingers rubbing furiously between Deku’s sticky, freckled thighs. Everything’s sticky, and Katsuki’s vision whites out every time he cums inside of Deku, every time his hips twitch, and balls draw up and release the fucking endless seed stored in them; semen splatters against Katsuki’s hips, his thighs slide wetly against Deku’s and Deku — fuuukfuckfuck, Deku. His fucking Omega, Deku, spread so fucking wide after being so fucking good for Katsuki and letting Katsuki fuck him through his knots. Deku’s small dick is bouncing with the thrusts, too. Katsuki swears it looks smaller than it did before Deku got his pussy. It keeps getting hard, then Deku’ll cum, and a small little knot will plump right at the flushed base of it, like the alpha in him is still trying to put up a fight. Katsuki can admire it, just a little.
Eventually, though, the knot just stops forming. And his cute little dick stops getting hard after he is cunt starts dry orgasming. Stop letting out globs of milky white for Katsuki to coat his thighs with.
Katsuki’s mouth is dry, and yet still manages to somehow drool all over Deku’s neck whenever he’s got his face buried in it for more bites and marks to be bruised into his skin. Deku’s eyes are glossed over, tear tracks dried on his cheeks, and body still twitching from the aftershocks of orgasms from four rounds ago.
“A’pha,” Deku pants, whispers, breathless. He shudders, twitches and spasms. “Hnnnh. ‘M, ‘mega, m’--A-al…”
“C’mon, Omega,” Katsuki breathes, swallowing hard and dry. More. More. He wants more, he needs to mate. Needs to mate with Deku—againagainagainagainagain.
Katsuki drags Deku’s hips back harshly, groaning at the way Deku twitches every time he passes the bump of Katsuki’s knot. Like a fucking ridge, and the way he pulses and squeeze, dripping of more slick every fucking time he does. His dick swings a little, again—Katsuki swears it’s fucking tinier. His tiny balls look like they’ve still got something in them — but overall, it’s a useless dick with a useless 1-inch knot, now. Which is why his Omega looks so fucking good taking Katsuki’s knot.
“Fuck yourself on m’ knot, there you are. Fuuuck,” Katsuki growls, panting, eyes wild, stuck on the view of Deku’s pussy pulsing, soaked.
He tugs back harder. Deku’s ass bounces every time he meets Katuski’s hip, the sound of skin against skin echoing in the classroom, the smack of Katsuki’s still-heavy balls against Deku’s flushed, swollen and new pink pussy lips. He watches as Deku spasms and again, watches the pulsing of his reddened clit, sensitive and throbbing. Deku pants as he convulses, thighs twitching and violently bucking up with every wave of aftershock that runs through him.
“Omega,” Katsuki growls.
Katsuki maneuvers Deku’s body, flipping him into his back, their sticky skin clinging together when he crawls forward, sinking back into him. Deku’s fingers brush against Katsuki’s shoulders, like he’s going to hang on — before his arms drop down beside his head and he lays limp, almost motionless.
“More,” Katsuki pants, voice fraying at the edges. “Omega, I need more, need more, need to mate, needtomateneed—”
“Alpha,” Deku pants. “Kacchan—can keep going. Kacchan … hahh. Kacchan can, can take. What Kacchan needs.”
So, Katsuki takes what he fucking needs. He takes all of it.
He fucks Deku against the floor like that again. Then takes him on his side, drooling against his neck, fucking two fingers into his cunt as he fucks his cock into him. Then changes to stroking his tiny dick that’s too spent and worn to get hard again. He maneuvers Deku all on his own, makes it so the newly-presented Omega is straddling him as he fucks his hips up, and brings him down to ride, gets a good look at his pink little cock bouncing like crazy, and that alone makes him bust a few loads. Again with Deku’s legs all the way up, pressed so far back his knees were pressed into the floor next to his ears, then again with both his thighs pressed to his chest, and in every single fucking position Katsuki could put Deku’s pussy on display for him. Glistening, pink, engorged and perfect.
And then a final time, on his back again. Katsuki fucks him so hard the mix of their slick, cum, and juices drench his thighs every time he thrusts his hips. He’s got Deku’s cum matting the hair on his legs, the pubes of his cock, Deku’s sweat clinging to every inch of his skin. His throat feels like it’s gonna break, and his eyes keep rolling as the world darkens, like he’s gonna fucking pass out. Deku’s already gone — passed out rounds ago, in and out of consciousness as he let Kacchan, let his Alpha take.
His final knot doesn’t take long to go down, but he doesn’t move when it does, either. Not cuz he can’t – he can. Deku’s more than loose enough now. But because he enjoys the warmth of Deku, of his Omega, skin to sweaty, dirty fucking skin.
Katsuki’s body is draped over Izuku’s and his cock is soft, against Deku’s leg, entirely spent. Deku’s own, much smaller cock is nestled between the fat, swollen lips of his cunt, rwal fucking cute, too. It’s only now that the haze in Katsuki’s mind finally begins to clear up, and he can remember the events before everything actually went to shit.
He went feral. Holy fucking shit.
Katsuki had been able to hear the words and the chaos around him, definitely, but he hadn’t been able to register any of it. At all.
Panic. Shouting. He’d accidentally commanded the other Alphas in his class through that shit show, more than a few times. God…where to even fucking begin?
A second presenting.
Prime Alpha.
That’s cool as shit and all, but…
Katsuki shakily lifts himself up to peer down at the boy beneath him. He raises a hand, and slides it between Deku’s legs. Lifts his cock with his index finger to peer at what’s beneath it.
Bloated. Deku’s pussy is absolutely swollen and bloated. Deku has a pussy now.
Deku’s — an Omega now.
How the fuck is that possible?
And - and Deku? Of all people Katsuki could have chosen to go feral on — he chose Deku? He wanted to give himself the biggest, most violent facepalm on the planet. He hadn’t even gotten to confess his feelings! There ain’t exactly a manual or course on navigating the supposed to be platonic relationship with your Alpha best friend after presenting as a Prime Alpha and then bitching him into an Omega. Is there?
Is Deku gonna be fucking mad? He just—he changed his entire fucking second gender. Like, 75% of his fucking identity. Oh fuck. Oh fuck fuck fuck.
Fuuuuck. Katsuki fucking hates his life. What a goddamn way to fuck up, huh.
Katsuki startles, but only slightly, when Deku stirs beneath him.
He blinks. Slow and dazed as he lifts his head a little, small nose twitching. Probably at the overwhelming smell of pheromones and sex and cum and sweat and … whatever alpha-omega shit is mixed in the room right now.
Katsuki holds his breath, heart stuttering in his chest.
“Wow,” Deku mumbles. “Kacchan’s a Prime Alpha…” he drops his head back down, slowly closing his eyes. “Mmn. Was ‘n Alpha, and now ‘m n’ Omega … mmm. Kacchan’s ‘mega … Kacchan Sugoi…”
He slumps again. Sleep.
Katsuki slumps, too, feeling a weight lift off his shoulders.
Thank god Deku is fucking Deku. His Deku.
Katsuki smirks as he presses a kiss into Deku’s neck, getting a whiff of that vanilla cedar under all the musk of sweat, sex, and cum. It smells sweeter than it did when Deku was an Alpha.
Thank god for that, too.
He could spend the rest of his life drowning in the vanilla cedar of Deku.
His Omega.
Heh. He likes the sound of that.