i’m gonna get a little fucky here.... bare with me, i cannot get this thought out of my head.

CWs: ph!bkdk, rimming, brat-taming, dirty talk, power dynamics, scent kink & A/B/O dynamics (intersex Os)(A!dk, O!bkg) (idk how to tag this last bit but um, playing with cum? idk idk)

(((i know i suck at tagging, so if any of the vague cws squick you out, please be cautious and consider skipping this one, i really don’t want my fuckies to trigger anyone. love u beans )))

Sometimes, Kacchan gets in this mood.

This horrid, ridiculous, unbearable mood, where he doesn’t listen to anyone about anything and the slightest provocation sends him into fits of anger.

Kacchan liked to say he wouldnt have to act out if people would use common sense; but Deku liked to call it what it was—him being a fucking brat.

It starts off mild: cursing more than usual, cutting people short in conversation & walking away from people he didn’t wish to see.

But he’s /Kacchan/, he doesn’t half-ass anything, not even tantrums. So soon, it evolves into straight-up violence.

Shoving people out of his way, setting off explosions in people’s faces, burning through DO NOT CROSS police tape when they take over a scene, because he “wasn’t

fucking done” handling it yet.

It’s always right about then that his coworkers and friends start to get antsy—because he gets so riled up that he stops listening to reason and starts lashing out, largely out of spite.

At that point, there’s only one thing that snaps Kacchan back to himself—Deku.

Normally, Deku’s got all the restraint in the world to deal with his explosive boyfriend, but this time, he isn’t feeling so patient.

When Kirishima calls him, mouth running a mile a minute about how Katsuki had “decked the boss—no like literally, he broke his nose—“, he felt the last strand of his patience snap.

He’d been completely across town—in the /middle/ of a job, and what does he have to do? Turn the reins over to Shoto, just to book it across the city to deal with his mate’s stupid superiority complex.

When he shows up at Kat’s agency, everyone can tell that it’s not going to be pretty.

Bakugou might be especially destructive today, but Deku looks just as uncharacteristically angry—and that’s before they even smell him.

Deku’s scent has gone hot, woodsmoke and whisky

instead of his typical pleasant pine.

He looks /and/ smells like an angry alpha, and when he finds Kirishima, the redhead tells him as much.

“Whoa there Deks,” Kiri tries to smile at him, but it wobbles—and Deku doesn’t miss how Kiri seems to tick his face to the side

ever so slightly, instinctively needing to bare his neck.

“Where is he?” Deku all but growls, gaining him concerned looks from the bustling employees.

“You want to take a breath before you go to him?” Kiri glances around, “You uh, smell off.”

/“Eij.”/

“Medical.” Kiri squeaks. “He’s in medical, icing his knuckles.”

Deku’s off without another word—he takes the stairs two at a time, and when he looks through the glass doors of the med-bay, he sees his mate’s unruly blonde hair; he’s sat in a chair, facing away from him.

The second he opens the door though, Kacchan stiffens—he postures up like a spooked cat, and quickly whips around at the smell of his alpha’s disturbed scent.

He blinks big ruby eyes at Deku, as though he couldn’t process his presence.

“Deku? What are you—“

“—Let’s go.”

“I thought today you’d be in—“

“—I /was/, but now I’m here, aren’t I? Want to guess whose fucking fault that is?” Deku says through clenched teeth, “Let’s. Go.”

Katsuki’s scent sours slightly in response, and with a twitch of his brow, it goes hot again.

The sharp smell of molten caramel, deliciously sweet but dangerously hot, fills the air between them, and Deku’s mouth begins to water.

“I don’t want to.”

“I don’t care what you want.” Deku takes a step closer. “You’re acting like a child. Let’s go.”

“I am not acting like a child, you’re just treating me like one.” Bakugou folds his arms across his chest.

Deku closes his eyes, takes a stabilizing breath, then looks around to make sure they’re alone.

He’s on Kacchan in an instant—a big hand clasped at the back of his neck.

The sudden force of it pulls a shaky sound from Kacchan’s lips, but he’s wide eyed and gasping in response.

“I’m not going to say it again.” Deku says clearly, almost at a growl. “What do you say when

I ask you to do something, Kacchan?”

Bakugou shifts, uncomfortable at the sheer strength his mate has over him—it’s just his hand, but he knows it would be strong enough to snap his neck if he tried. His eyes search the hallway—anyone walking through there would see

Deku’s hold on him. He can hear the nurses further in the medical bay, too, but for right now, they’re completely alone in triage.

So, he gives Deku the answer he knows he’s after. It’s a soft whimper, barely audible, “Yes, Alpha.”

“That’s right,” Deku hums, the hint of a praise there—maybe he’d dole those out later, but right then, Katsuki didn’t deserve any. “So when I say ‘Let’s go,’ you ought to say?”

Katsuki shifts his weight annoyedly, but his response is a bit firmer this time. “Yes, Alpha.”

***

The walk back down to the lobby is quick, mostly because Katsuki knows he’s lost this round and wants it to be over as quickly as possible.

Everyone in the lobby stares at the firm grasp the alpha has on his mate, but they do their best

to stay out of the way as they leave.

Izuku gets Kacchan into his car, and they drive home in near silence—the only inkling of communication between them is the quickly sobering scent of the cornered omega.

When they get to their apartment, Deku lets Katsuki set his bag down in the entry—but the very second he’s done that, he’s scooping the omega over his shoulder.

“Izuku!” He shouts, but the cry dies on his tongue when Deku firmly grasps his thigh—because the threat is wordless:

/Stay fucking still, and be fucking quiet./

Deku finally sits him down in their bedroom at the foot of the bed, and takes in the angry little look on his face.

His hairs all out of place, and his face is pink from being held upside down.

Deku is completely silent when he reaches forward, wordlessly unclasping the various clips on Katsuki’s uniform.

“Izuku?”

Katsuki has seen Deku angry before—at various stages ranging from ‘Ugh, seriously Kacchan?’ to ‘Bend over, Katsuki.’

But he’s never been silent before.

Deku keeps going, squatting down to untie the leather laces on Katsuki’s boots, carefully removing them, then his socks.

“Zu...zu?” Kacchan whispers, and his voice trembles a little.

His mind is full of flashbacks to the last time he’d misbehaved like today.

Deku had taken him over the edge of the kitchen counter—fucked him absolutely silly until the front of the cabinets were a sticky mess

and Katsuki was within a hair’s breath of passing out.

Even just the memory sends a shiver down his spine.

Deku keeps going, not uttering a single word until Katsuki is left almost completely naked, in just his underwear.

Sufficiently undressed, he reaches for the clasps of his own belt, “When are you going to learn, Kacchan?”

“L-Learn?”

“That you can’t just hurt people when you need attention.”

That makes his scent flare again—gooey caramel laced with his defensiveness.

“That’s all this is.” Izuku rolls his eyes, shoving the top half of his suit down. “You, needing attention.”

“No,” Kacchan ticks his head off to the side—but he can’t help it, his eyes flit over his alpha’s exposed torso, at the scars that litter his tight, toned body.

His lip wobbles and he feels that heavy pooling of arousal in his gut. At least he wasn’t slick yet—

“I wasn’t asking.” Deku clicks his tongue, and undoes the zipper at the front of his pants, exposing his filling erection, covered by thin cotton underwear—but he doesn’t pull them down.

That fully grabs Katsuki’s attention.

“Kacchan,” Deku sighs, “I’m not very happy with you right now—so I’d appreciate it if you’d drop the act.”

Katsuki looks up, tears forming in his eyes; he could take a lot of things, but hearing disappointment in his alpha’s voice made it hard to keep his cool.

“Are you listening?”

Katsuki makes a little sound—a grunt of half-agreement but still doesn’t meet his alpha’s eyes.

That is until Deku grips his jaw and /makes/ him. His voice is soft, but inching towards annoyed. “Then what do you say?”

“Yes, Alpha,” It comes out of Katsuki almost completely on instinct—his body desperately wanting to survive the pending punishment.

“Mhm.” Deku appraises his mate’s cheek, “You’re lucking he didn’t hit you back, or else we’d both be suspended for assault.”

Deku spends a good minute just looking over his mate, until he clicks his tongue and smiles slightly.

“Alright—here’s what’s going to happen, Kacchan. I’m going to have some fun, and you’re going to be good, and do as I say, /right?/”

The breath barely leaves him, “Yes, Alpha,”

“Look at you, learning so quickly. It’s almost like you /already/ know what to do, but you /choose/ to be a fucking brat.”

Katsuki can’t help but whimper.

“It’s okay—I know, Kacchan. I know you like this.” Deku crowds into Kacchan’s space, pushing him down against the mattress. “That’s why you misbehave—to piss me off enough to fuck you senseless.”

“No,” Katsuki sighs, then winces at how Deku yanks his legs up, holding a toned calf in each palm.

“No?” Deku hums, making Katsuki whine again, as his nails nick the soft skin of his thighs when they scrape his underwear away from his sex. “Is that why you’re slick?”

The cool air sends goosebumps over Katsuki's thighs, and he instinctively tries to close his legs.

But Deku doesn't give him the chance—he's got a firm grasp on the omega's legs, and yanks them onto his shoulders. "Now look at that—isn't that pretty?"

A firm, prodding thumb spreads his pussy open, making Katsuki hiss softly. Then, the rest of his fingers join, the tips swiping over the length of his slit in a soft, gentle touch.

Katsuki feels the silky wetness of his slick follow Deku's fingers across his skin.

At some point, Katsuki had covered his face—but suddenly, he feels a warm wetness over his folds, and when he looks up, he meets Deku's eyes as the alpha spits onto his pussy.

"F-Fuck," Kacchan whimpers, watching how Deku uses his thumb to smear it across his pussy.

He goes to cover his face again, but Deku's fingers pull away—then snap down to spank his bare cunt.

"Fuck!" Katsuki jerks in a feeble attempt to pull away—he doesn't make it far, because Deku's hands snap to his thighs, keeping him still.

"Then don't fucking hide from me.

You don't get to be a brat and get a half-assed punishment." Deku's eyes glint with mischief. "So you're going to watch me eat this pussy—not just until you cum, or until you cry, but until I decide I'm fucking done. Got that?"

Katsuki melts. "Y-yes, Alpha."

Eyes still locked together, Deku leans down and presses a wet, sloppy kiss to his dripping pussy. His pink tongue dashes out, collecting the sweet slick, and he moans, loud and raw against Katsuki’s glistening flesh.

A full body shudder shakes the blond, but he doesn’t dare look away from his alpha; No, he keeps his eyes trained on the tufts of green curls and those mean green eyes glaring down at him—and he realizes he’s really, truly fucked up.

Because the orgasm hadn’t been there a moment ago, and although Deku feels it building in his omega, he doesn’t slow down.

Katsuki’s breaths started coming faster, his legs tensed up, but /right/ as it started, Deku pulled away.

Katsuki chokes on a sob when it happens—his orgasm beautifully ruined at just the last moment.

Deku only looks down with a lopsided smile at that pretty cunt, spasming around nothing, cumming oh-so-pitifully.

When Katsuki’s thighs slacken up, Deku resumes his meal, slurping at the sensitive bundle of nerves in a way that makes Katsuki’s entire body jolt in Deku’s arms.

“No, no no,” Katsuki slurs, his legs trembling, “Alpha, alpha please,”

Deku only hums against his cunt, swirling his tongue with the taunt, but he also reaches one hand up to tug on Kat’s hard little cocklet.

And Katsuki sees stars.

This time when he comes, Deku doesn’t stop—in fact, he tongues him straight through it.

And this time, Katsuki slumps even more; because his cunt was still clenching around nothing, and his cock had dribbled cum all down his chest—some even landing on his chin.

And Deku. Doesn’t. Stop.

“—zuku,” Katsuki cries, trying to wrench himself away, but those big arms keep him right where he is. “—s’too much, too much, Alpha, please!”

Izuku pulls off with an exceptionally wet sound—but doesnt stop teasing that poor sore nub, instead rubbing it harshly with his fingers.

“So pretty when you cry, Kacchan,” Izuku growls. “C’mon, one more. Cum for me.”

The quick back and forth of Deku’s fingers makes him do just that, and this time his orgasm is so violent that it tears Deku’s name out of him—and sends a rush of sweet slick all over Deku’s chest.

————

(A/N: gib me QRTs pls my poor author heart needs ‘em or it’ll ‘splode)

————

“That’s it,” Deku grunts, forcing every last drop of that sweet stuff out of his mate. “Look at the fucking mess you’re making, Kacchan—don’t you close your eyes yet, I’m not done with you.”

Katsuki hears him, somewhere in the distance far, far away; because he’s swimming in the floaty happy-omega headspace that comes after having three orgasms ripped out of you consecutively.

His tongue feels heavy in his mouth when he whines Izuku’s name again.

He doesn’t even know what he’s begging for anymore. His body is buzzing with a heavy, sated feeling, but his instincts are still begging—no, screaming—for a knot.

And he must have asked for one out loud, because Deku’s chuckling and wrenching down his own pants in response.

“Such a greedy little thing. You cum all over me /and/ yourself, and you still want a knot?” Deku teases, “Kacchan, your slut is showing.”

Embarrassment burns hot in his cheeks, but he whines, legs still shaking, “P—Please?”

“Mhm, if my baby wants a knot, then he gets a knot.”

Deku flips him over, pushes his chest down against the mattress, and yanks his hips up, forcing his back into the deepest fucking arch, his ass round and beautifully displayed. “You’ll get your knot, but you’re gonna beg for it—and apologize for being such a bitch—before you do.”

Before Katsuki can even respond, he feels the thick, blunt head of Deku’s cock lining up against him, smearing slick across his folds.

“That’s it,” Deku grunts, inching his way into his mate. “You like the way I split you open?”

Katsuki murmurs something, so Deku slaps his ass

and growls, “Speak up.”

“Y—Yes, Alpha,” Katsuki whines, his eyes rolling back into his head. He’s a mess—drooling all over the sheets, barely able to feel his body save for where Deku is fucking into him.

The alpha’s hands settle on the smallest part of Katsuki’s waist, squeezing him there for leverage, then slamming into him hard enough to send the headboard cracking into their wall.

Katsuki yelps at the way it seems like the alpha’s cock displaces all his other organs,

filling him so much that he almost feels like he can’t breathe. His sobs are shaky, hitching when Deku pulls out, and flooding out of him when he slams back in.

A warm hand splays on the blond’s sweaty back, steadying him, then Deku’s voice snakes around him, a soft purr, “Breathe, baby.”

He tries to nod, to lie still and take his punishment as he knows he should, but his knees are wobbling and his chest is tight in over-exhaustion.

“Do you need to tap out, Katsuki?” Deku swipes his hand up, pushing sweaty blond locks away to look into to puffy, teary red eyes. “Tell me now, before we keep going.”

“No, Alpha,” Katsuki rubs his cheek into the sheets, a feeble attempt to hide.

“Good,” Deku groans, and starts to pick up the pace. “You get so full of yourself sometimes. If you need to be fucked back into your place, all you’ve gotta do is ask, baby.”

Katsuki’s palms start to heat up—Deku’s fucking him so hard that he’s losing control of his own quirk—and he cries Deku’s name so loud, his voice cracks.

“I can feel you tightening up—but you don’t get to cum again until you apologize.” Deku says between thrusts.

The words barely come out, a ‘please’ here, a ‘no, no alpha’ there, but nothing cohesive enough to make sense.

So Deku grabs him by his sweat-matted hair, and yanks him up until he’s flush against the alpha’s chest.

“Fucking /apologize/.” Deku snarls.

The start of the knot brushes Katsuki’s folds, rousing his inner omega to lucidity. It feels like it scurries right back into hiding at his alpha’s command; and the apology comes quickly.

“Mm—Fuuuuuuck! M’sorry, Alpha! So-sorry—sorry,”

“Not yet, you aren’t.” Deku growls, yanking the omega’s head back even further, so he could nose over the smooth scar his teeth had branded into Katsuki’s neck. “Beg.”

Katsuki gasps—this new angle meant that Deku’s cock was angled straight up inside him, brushing over his sweet spot with every thrust. “A—ah, Izuku,”

“I said, /beg/.” Izuku hums, “You wanted my knot, right? Then beg for it.”

“PLEASE!” The sounds punches out of Katsuki so harshly, it doesn’t even sound like him. “Please, Zuzu, please, knot, alpha /please/ knot me,”

“You know what?” Izuku teases, “Maybe it’s my fault—because you act out, and then I give you exactly what you want anyway.”

“Pleasepleaseplease,”

“Oh but how could I not, when you cry so pretty for me, Kacchan,” He sighs, “It almost makes up for you being such a brat.”

“Knot, please!” He gasps, his vision going to black splotches.

Deku starts fucking faster, the knot filling up fully. “You’ve got this perfect fucking body—God, it’s just your fucking attitude. Do you know how crazy you drive me, huh?”

“A-Alpha!”

“Fuck!” Deku yells, and his hips finally slam home, locking his knot inside Katsuki.

What feels like a gallon of cum explodes inside the blond—and outside, his own cock jumping with its release, sending the thin white liquid all over his thighs and their sheets.