thinking about prohero wonderduo bkdk being roommates bc it makes their lives easier.

...until Deku starts getting tail and Katsuki has to stare at the ceiling at night, listening to some rando get railed round after round, moaning their voice raw.

and like...those fuckers REALLY enjoy themselves.

sometimes, the voices are soft and feminine; sometimes, they’re gruff and masculine.

...but regardless, it always goes the same. the two stumble into the apartment, kicking their shoes off and then try to sneak into Deku’s room

without making much noise.

Katsuki doesn’t know why Deku bothers; their voices always carry.

then, they get into his bedroom, and Deku always makes sure to remind them, “listen—I live with someone, so try not to be too loud.”

some of them take offense, others consider it a

challenge.

either way, Katsuki has to lay there, glaring at the ceiling, and listen to the soft whispers and moans get louder and louder until he’s got to yank a pillow over his head.

sometimes, if they’re having a REALLY good time, Deku’s headboard even bangs into the wall.

he listens to Deku grunt out filthy nothings, ‘you like that?’ and ‘fucking slut’ under his breath; and pretends his cock isn’t rock hard, wishing he were on the receiving end of those taunts.

although, most times, it’s difficult to even hear Deku, because his dates always

underestimate the nerd, and when he finally gets inside them, it’s almost like they can’t help themselves.

it’s annoying; though Kat can’t tell what upsets him more, their moans, or the fact he can’t hear Deku’s.

and the worst part? he can’t even bring himself to mention it to Deku.

they’re on perfectly good terms now, he should be able to say something akin to ‘dude, you have sex like, really loudly. maybe give me a heads up? so I can head out & give you some privacy?’

but he can’t.

he can’t, because Deku might have sprouted another foot taller—but he’s still got those big ol’ puppy dog eyes.

and Kat just knows the nerd would be MORTIFIED to find out that he’s been awake and LISTENING to him having sex for the past three months.

but maybe one night in particular is the straw that breaks Kat’s back.

maybe he catches a glimpse of the extra on his way to brush his teeth—and maybe his chest fucking seizes—because the fucker is tall, jacked on top, lithe in the waist, and has a head of thick, blond hair.

everything comes crashing down at once, and he starts putting things together as they fall—Deku always made sure his dates were gone before Katsuki got up for the day. either before he got dressed for his early run, or while he was gone on it.

he’d never once SEEN one of them.

and the restraint he’s held for months now just snaps.

he’s at deku’s door, banging on it harshly, even as he feels it open under his fist. Deku’s mop of curly hair peeks through, “Yeah, Kacchan?”

“Don’t ‘yeah kacchan’ me, who the FUCK is that, and why does he look like me?”

and Deku...Deku does the darnest thing.

he glances over his shoulder, then back at Katsuki, and SMILES.

“Goodnight, Kacchan.”

and then the door closes.

in Kat’s face.

he stands there for a minute, in complete and utter shock— but his body processes his anger faster than

his head. his palms start crackling, and he’s seconds away from blowing the fucking door off of its hinges before he realizes he can hear the extra inside.

“Is that—is your roommate Ground-fucking-Zero? Oh my god—are you two a thing?”

and Deku sighs, “It’s complicated.”

‘it’s complicated?’ Kat thinks to himself, ‘you think this is complicated? i’ll SHOW you complicated—‘

but then the extra is talking again, shuffling back into his clothes, it seems.

“Oh FUUUUUUCK no. Sorry—i’ve seen the news, he’s fucking crazy. I can’t do complicated—not if

he’s involved.”

and then the door is yanked open again, and Katsuki gets a good look at his look-a-like.

there’s a resemblance, sure, in build and hair color—but he’s got harder features and deep brown eyes.

he supposes those wouldn’t matter, if Deku got him on his hands and

knees.

“S-Sorry man,” he says, stalling in the doorway, where Katsuki is still in the way.

“Fuck are you waiting for? Get the fuck out!” Katsuki barks, sending the kid skittering around him, towards the front door.

he hears it slam shut, then turns back to Deku.

the bastard is standing there, arms across his chest, scowl on his face.

“I was gonna have that.” Deku says.

Kat points an accusatory finger at him, trying to form his question properly. “He LOOKS like me.”

the smile returns, “Yes, he does.”

Katsuki feels like his face

on fire. he—he didn’t even deny it. his heart thunders in his chest.

“Why the FUCK does he look like me? Is that on purpose?”

Deku hesitates—but only for a second. “Yes, it is.”

His chest starts rising hard and fast, adrenaline pumping a billion miles a minute, “Did they

all look like me?”

“Honestly? When I can manage it, yes.” Deku says, sounding a little disinterested now, and it makes Katsuki want to fucking scream. Deku props himself up in the doorway, gazing down at his angry blond friend.

“WHY are you fucking people who look like me?”

Katsuki yells. “What the FUCK, that is so weird!”

Deku smiles a little, “Why have you been listening to me fuck people who look like you?” He tilts his head, “That is SO weird.”

his mouth falls open, and guilt stifles his face, making it even harder to breathe.

“I-I didn’t know they looked like me until just now!”

“...so you do listen.”

“Fuck else am I supposed to do? Do you have any idea how loud you can get?”

“You could’ve asked me to stop.” He tuts, “You live here too; if you asked, I would’ve stopped—but instead, you decided to

listen. How odd is that? ”

“I—“ Katsuki grinds his teeth, “I thought you’d be embarrassed if you knew I overheard—that doesn’t fucking matter. Deku, WHY do they all look like me?”

“C’mon, Kacchan. Why do you think they look like you?”

Katsuki swallows hard. green eyes bore into his, and he can’t help the way his voice shakes on the way out. “What, so you want to fuck me?”

“Yeah,” Deku says, without hesitating. “I want to fuck you, Kacchan. On the daily. I see you making your coffee every morning, and I want

to bend you over the counter and fuck your legs out from under you.”

Katsuki can’t help the way he inhales so sharply. Deku is suddenly so close, and he feels so hot—and oh god, he’s still going.

“I see you get into your hero suit and I want to peel you right back out if it.”

he says, the brilliant green of his eyes going dark. “but then I see the way you look at Kirishima—not me—and so I keep my hands to myself, and I fuck people who look like you.”

Katsuki can only blink at him—K-Kirishima? What the fuck is he talking about?

“And you,” He

says harshly, “Just scared off my you of the night.”

“Fuck you, you asshole,” Katsuki shouts. “You don’t get to make guesses about who I want to fuck! And I don’t LOOK at Kirishima, you fucking numbnut, he’s a friend!”

“You expect me to believe that you don’t want to fuck

Kirishima?” Deku narrows his eyes.

“I EXPECT you not to make assumptions—maybe ask a fucking question if you want to know so bad.”

“Do you want to fuck Kirishima?” He yells.

“No!”

“Do you want to fuck me?”

“Yeah, I want to fuck you, you fuckin’ pussy!”

and so Deku grabs him by his tank and hauls him close, crushing their lips together, hard. his big hands grab at Kat’s ass, yanking him up into his arms.

he kicks the door shut, and carries Katsuki over to his bed, tossing him down so hard, Kat bounces.

“You fucking tease.” Deku glares, shucking clothes off left and right. then he grabs Katsuki’s ankle and hauls him closer, tearing his tank down the middle.

“It’s your own fucking fault,” Kat gasps, watching Deku’s big, rough hands yank his pajama bottoms off, then his boxers.

Deku doesn’t even give him a second to feel bare and embarrassed—he’s just grabbing the backs of his knees and folding him in fucking half.

Katsuki barely manages a gasp before a hot, wet tongue is against him.

“Oh, fuck,” He gasps, and his toes curl hard—it-its been so long

since anyone’s—

“When’s the last time you did this, Kacchan? You’re all tight.” Deku says, suddenly equipped with lube to drizzle it all over his hole.

“Fuck you,” Katsuki whimpers, unable to stop a moan when Deku’s thick finger slides in. “Oh fuck-fuck-fuck, hurry,”

“Relax,” Deku hums, crawling up so Kacchan’s legs drape over his shoulders. “You’ve gotta open up for me—I know you want it hard, but I’ve gotta get you ready first.”

With his free hand, Deku cups Kat’s chest, his index finger flicking over a flat, pink nipple.

“Look at these

fucking tits,” He says darkly.

“They’re not, ah—“ another finger slips in, “—They’re not tits,”

“Yeah they are,” Deku nods, laving his tongue over the opposite one, “I could push them together and slip my dick through, look,”

Kat watches him bar his hand across the top

of his pecs to squish them together.

“I could fit riiiiight here,” he says, matter-of-factly. “And I bet you’d fucking like that, too.”

“I—AH,” he pants, because another slick finger slides in, and he’s so full he could scream, “Put your fucking dick in me you big bitch—fuck

NOW, please—no more fingers, just fucking fuck me!”

“Are you always this way?” Izuku asks, but obliges—his fingers slip free, and then he’s guiding his cock inside and—

“Oh-oh fuck!” Kat’s brow knots together, and his breaths come quicker—it’s so big, he’s gonna fucking—

“Is this what you wanted?” Deku leans down, pressing his weight down into Katsuki’s chest through the backs of his knees—“Wanted it to hurt a little?”

“Yeah—fuck, Deku, sl-slow, please,”

“You sound so sweet when you beg,” Deku noses his jaw, “Let me hear some more.”

He draws his hips back and Katsuki’s eyes go wide, because he doesn’t even have a chance to stop him—Deku slams his hips down hard, so hard that the bed frame slams into the wall with a loud, reverberating crack.

Katsuki doesn’t realize he’s screamed until Deku’s shutting him

up with another filthy kiss.

and when Deku breaks it and sets his brutally quick pace, Katsuki realizes—all those extras were NOT just being dramatic.

he has never been loud in bed—EVER—but it’s like Deku’s dick punches the sounds out of him with every mean thrust.

he’s moaning openly at the drag of Deku’s cockhead over his prostate with every thrust out, and choking with every slam back inside; he’s clutching the fucking sheets so hard, they very well could tear—meanwhile Deku’s just smiling at him.

“You like that?” Deku asks sweetly, pushing Kacchan’s hair back, off of his forehead, so he can meet his eyes, “Look at you—fuck, does that feel good?”

around another desperate cry, Kacchan manages, “Fuck—fuck yes, yes it feels so fucking good, Deku,”

“I bet it does, you

pretty little slut,” Deku groans, and Kacchan screams another moan out because—no, NO he can’t take the dick AND the dirty talk, he’s gonna cum—

so he reaches between them, and captures his rosy cock at the base with a bruising grip.

and when Deku notices, he leans back—still

snapping his hips up into Kacchan’s heat—but enough to look at the pitiful display.

“I thought it felt good?” he teases, flicking his red little cockhead, “Don’t you want to cum?”

“Not—AH—not yet,”

“What if I want you to, though?” Deku asks, all threat and venom, and he

angles his hips upward, which makes his cock slip even more firmly against his prostate, making Kat scramble to grip his dick with both hands—and no, he doesn’t miss how that pushes his fucking tits together, or the way Deku stares at them hungrily.

“What if I want you to cum over and over again? Until you’re nothing but tears and my fucking name?”

“Izu—ku,” Katsuki cries and that seems to make Deku snap—he grabs Katsuki by his pale throat and yanks him up in a show of sheer brute strength, and forces one of Kat’s arms up

around his neck.

Katsuki’s fingers quickly slip into wild green curls and Deku’s slide down to Kat’s ass as he turns them around and presses Katsuki against the wall.

“You’re gonna cum, and you’re gonna fucking scream that again, got it?” He asks, slowly returning to the

quick slap of his hips that sent Kacchan wild.

Kat can only nod and hold on tight.

“Pretty fucking slut, just fucking look at you—you’re telling me I could’ve had you like this, this whole time?” Deku whispers almost like he’s speaking to himself, “Look at this gorgeous

fucking body—they were never you, you know? As much as I tried, they were never you,”

And Kat would grin, but he’s too busy trying not to cum or die—because both seem likely here.

“Never you,” he repeats, “Never these tits, or this ass—never these lips, fuck,” he kisses him,

“These sinful fucking lips, always fucking yelling.”

And Katsuki feels Deku twitching inside him, his strokes getting more desperate, so Katsuki finally lets the hand around his cock go.

“Oh are you ready to cum now?” Deku teases, “Let me see it, Kacchan.”

and really, that’s all it takes—he cums hard, his eyes rolling back in his head and his fingers tugging at Deku’s hair.

and Deku follows right after; Kacchan can feel the hot liquid flooding inside of him—and when Deku’s hips stutter, he can feel it drip out.

it takes Katsuki a minute to come down—he’s a bit dizzy from cumming so hard, if he’s completely honest, just a shaking, babbling mess of gaspy breaths and little mewls.

no one has ever fucked him like that, and his entire body flushes red with embarrassment.

when he finally catches himself, he realizes that Deku’s sat on the bed, and he’s curled up in his lap—cock still deep inside him, legs still wrapped around his back, fingers still in his fucking hair.

he pulls away, slowly, and looks up at Deku through long blond lashes.

“Fuck you for holding out of me,” is what he settles on saying, moving his fingers through those curls, “Fucking those extras when you could’ve been fucking me. Dummy.”

Deku’s hands settle on his hips, and he’s breathless, “Oh believe me, I’m done holding out on you, Kacchan,”

“You fucking better be, or I’ll kill you.” He says, wiggling his hips a little, “This is mine now.”

Deku grins and his cock twitches to life again, still inside Kat—whose eyes blow wide at the sensation. HOW is he hard again?

Deku hums, “See, I was hoping you’d say that.”

[END] LMFAO WHERE DID THIS EVEN COME FROM?? if you’ve been reading as a write, have a nice night, lol!!!!