A/N: Smut warning! 

Warmth.

He's surrounded by it—floating in it as it cradles him and he is helpless but to do nothing more than sink deeper into it. A sort of airy feeling overtakes him as he is scented by the heavy scent of wet earth and sandalwood. 

It isn't until the warmth pulls away that he comes to—pillowed by warm, tanned flesh and covered by a duvet that looks quite a lot like his own. A nest of green curls tickles against his forehead.

"Hey there." 

He registers Izuku's groggy, sleep ridden voice that feels like dark velvet smoke in his ears and it sends a shiver down his spine as he looks up to see those forest dark orbs staring back at him. 

"Deku." 

"Mm?" 

"You're in my bed." He doesn't seem as bothered by it as he should be—suddenly waking up with someone he used to despise cuddled against him in his bed. It's almost like they belong like that, fit together like a well played game of tetris. 

That's all Izuku's been doing since Katsuki's come home. Fitting himself into his life. 

It was ironic, really, how Izuku was always able to put him in a state of disarray; he was always able to make him second guess himself and feel small even though it was Izuku that was the underdog. Katsuki was like a hurricane to Izuku's serenity. He uprooted trees, flooded homes, and he hurt people but Izuku was always right behind him—the eye of his storm. 

The light of the moon catches Izuku's pearly white teeth as his mouth curls into a triumphant smirk. It glows on him.

"Obviously." He rolls them over, hovering over Katsuki to prop himself up on his elbows and press a kiss to his neck. His hot, heavy cock is pressed against his thigh and Katsuki slowly comes to realize that—

"We're naked." 

"Yeah." This time he presses the kiss against his ear. "People usually take their clothes off before they fuck." 

"Shut up; no we didn't." He's trying to recollect—trying to figure out just how they ended up like this. He doesn't remember drinking the night before. Quite frankly he doesn't remember being with Izuku at all since they finished painting the Bakugou's house a few days ago. He's confused, but honestly, he's not complaining. 

Which should be a red flag but he ignores it in favor of entertaining his mediocre sex life. He'd have plenty of time to regret it later.

"Oh yeah. You, on your knees. Throating me until I promised to fuck you until you couldn't walk—it was phenomenal, really." 

A nip to the sensitive spot beneath Katsuki's ear has him choking out a moan and he's never been this horny before—never wanted anyone this bad. 

Sure, he's had boyfriends that have let him push them around before. He's ridden a cock here and there, gotten a blowjob in the study hall at uni, and even fucked some chick in the back of her jeep but this—this was an animalistic hunger and boiled low in his being. 

His mother would have a field day with this if she knew.

"You're lying?" 

Izuku sat back on his heels and the duvet fell down behind his waist, the pale glow of the moon illuminating the alpha like the sun itself. Tanned skin covered in scars and freckles and hard muscles with that stupidly sweet, dopey, lovesick smile on his dumb handsome face. For whatever else Izuku was, Katsuki would not deny that he was a gorgeous man. 

"Sure. We're naked because we're both here for a physical." The sarcasm in his tone is easily detectable as he rakes his eyes down Katsuki's frame, biting down on his lip as his scent spikes with arousal. "You're acting like this is something new. Like you don't already know that you're mine." 

Katsuki lifts a brow in suspicion. "Yours?" 

"All mine. I'm your alpha, after all." 

He wedges himself between Katsuki's thighs, hooking his slender legs over his own broad thighs as he leans down to kiss Katsuki again, growling possessively against his lips. "God, you're fuckin' pretty. Nothin' on this earth has any business being this fuckin' beautiful." 

Katsuki's so confused and yet so aroused that he can feel his arousal winning the battle of reason here because—wait, only just came home to Texas. He just seeing Izuku for the first time in eight years. How could he be his Omega? And how could that moron even insinuate something like that? 

" 'm not yours." 

Izuku frowns. "You are. You're my mate." 

Confusion comes back with a vengeance. Mates? Messing around and having sex together was one thing but does Izuku actually expect for Katsuki to believe that he agreed to something as ridiculous as taking Izuku—or anyone else for that matter—as a mate? He could never commit himself to something like that knowing that choosing a mate means mating them for life...no matter how much alcohol they drown him in.

"That's not possible." 

"It is." 

"N—oooooh!" Katsuki gasps out a moan again as his tangent is cut prematurely, clapping his hand down over his mouth as Izuku's teeth raked over his skin and his thick, scarred fingers breached the omega's slick, wet opening. Katsuki's vision whitened at the touch and he jolted, spreading his legs wider—he was presenting for him and not even slightly embarrassed by the sloppy, squelching noise it made. He wondered, minutely, how Izuku's cock would feel instead—how good it would be to have it spreading him open—

But Midoriya was still in his bed, naked, fingering him and going on about being mates. Where's your counter-argument, Kat? Or have you resigned to simply just let it happen?

Maybe he is in denial.

"You think your little pussy would be so wet if it weren't? I didn't even have to try, it's pouring out over my fingers all sweet. It's cause you're mine, baby. And your gorgeous body knows that." 

The fingers slide deeper and Katsuki bucks against them, shuddering as they brush against his sweet spot. He keens. 

"D-Deku—"

"Nuh uh. What did I tell you, hm? You want anything from me, you call me Izuku." 

He leans in, suckling against Katsuki's earlobe as he picks up the pace and keeps Katsuki's trembling thighs spread with his free hand so that the omega can do nothing but lay there and take it. "C'mon, use your words." A harsh jab against his prostate.

"F-Fuck—oh fuck, put it in. Hurry up and put your fucking dick in me!" 

He moves to sit up—to sit in Izuku's lap and ride him until the bed frame gives out—but it's futile against the alpha's Herculean strength as a large hand splays out over his chest and shoves him back down to the bed. Izuku cages him against the mattress, all dense muscle and dominance and Katsuki is so thirsty for it. He feels his slick squirting over Izuku's hot fingers as the greenette grinds their cocks together, mouth wet and hungry against Katsuki's California kissed skin. 

"You want me to dick you, baby?" 

"Yes, YES, God, yes—"

"Tell me you're mine. C'mon, you know how to use that brazen mouth." 

Teeth scrape against his scent gland and Katsuki arches into it, tangling his lithe fingers into green curls to press his mouth into him more. "You're such a fuckin' asshole." Izuku bites down in response, relishing the way Katsuki convulses against him. A breathy, desperate whine leaves the blonde as the head of Izuku's cock grazes his hole.  

"Gimme it!" He whines, trying to sit up again only to be shoved back down, a bit rougher this go around. It nearly knocks the wind from Katsuki's chest but he still swells with pride as he watches Izuku's expression turn primal while he drinks him in. That look on his face—like he wants to devour him—it makes his privates tingle. 

"You know how to ask nicely. Being bratty don't work on me. Say it. Say 'Izuku, please fuck me. I'm yours.' And you can have all nine inches of cock, deep in you, drilling your little pussy out." Izuku's tone is firm, even as he continues to rut his cock against Katsuki's own.

It breaks the last of Katsuki's resolve. He needs it. He needs it inside of him. 

So he relents. 

"A-Alpha, please! Please, put it in me—" 

"Again." He presses against Katsuki's opening, just barely pushing the head in before he ruts against his cock again. It smells like a burning forest fire in his bedroom. 

"Izuku—Alpha—I'm yours—" 

Katsuki's eyes shot open and he sat upright, frantically reaching for his bedside lamp in the dark. Once the light flickers on, he twists around to find that he's alone in his bed with a sigh of relief. 

Still, he's very much wet between the legs. 

He huffed in annoyance through his nose, falling back against his pillows when he realized that he'd have to wash his sheets. 

Great. 

# 

"Oh hey, Bakugou." 

The blonde tears his gaze away from the frosted glass door, holding a package of double stuffed oreos to his chest as he sees Mashirao Ojiro waving at him a few feet away. 

"It's Katsuki. I've known you for literally almost fifteen years, you don't have to call me Bakugou." He says, waving him and his basket full of junk food over. The beta laughs nervously as he reaches him. "Sorry, it's just that we weren't as close as everyone else so I didn't want to offend you by calling you by your first name." He holds in a giggle at how protectively Katsuki is hugging those cookies to his chest. "You're up late." 

"Couldn't sleep so I decided to come get some snacks. That's a lot of food for one person." Katsuki points to his basket and Mashirao blushes. 

"It's, uh, not all mine. I'm here with Shouto and Mirio. Weight training ran a little late and Yagi's been kicking our butts with this new training regimen so we decided to treat ourselves to some junk food." 

"Seems counter-productive but alright. What's Halfie tagging along for?" 

"Moral support. Izuku would have come along but he decided to stay behind a little bit longer to work on his defense." 

Figures. Deku's always been extremely obsessive over things whereas Katsuki has been just plain out competitive. Deku worries over the small things; he's meticulous and compulsive. 

Not that Katsuki has any room to talk about compulsive. 

"You got pretty close to Deku and those other nerds, huh? Pretty weird to see you with a bunch like them." Katsuki said, reaching into the freezer to grab a pint of Chunky Monkey ice cream like he'd intended to do when he first arrived. Maybe he'd get two. 

"It's not really an extravagant story. I got scouted after winning a couple of martial arts tournaments and ultimately decided to get into the Beta League under Yagi and Mirio's supervision. Easier to decide when you already know them, right?" 

Also, who wouldn't train under a Pro Alpha who reigned undefeated for fifteen years straight before retirement? 

"I've only been in the league for three years compared to them, so I'm not as famous but it pays the bills." 

Shouto rounds the corner at that moment with his cell phone in hand, tapping away at it as he dumps an armful of Doritos into the basket. 

"Mirio is waiting at the register for the rest of the food." He said, watching behind Ojiro as he quickly bids Katsuki goodnight and wheels the cart towards the front of the store where the registers are. The blonde omega expects Shouto to follow after him, but he stands there for a moment to eye Katsuki with a slow, vertical gaze, blatantly staring down his shirt at his cleavage.

It felt...weird. 

Is he checking me out?

"Somethin' on my face, Halfie?" 

His eyes linger on Katsuki's chest for another eight seconds before they flicker up to his face. 

"I apologize for my brother's behavior the other night. He doesn't know how to behave like a proper person." 

Katsuki scoffs. "It's cool, it wasn't even him. Fuckin' Deku started it." And that's really the truth of it. He's not taking up for Touya but he's definitely not going to act like Midoriya didn't come to him literally asking for a fight. 

Shouto doesn't seem too convinced. 

"Probably within good reason. Touya isn't the type of person that decent people like you should be hanging around." 

"Why, because he fights in the underground? Made a couple of mistakes? Rejected your dad and his shitty grooming?" 

"If it was something as petty as that, I wouldn't be bothered to warn you. Don't insult me." 

He pockets his phone and holds out his hand. There's a stretch of silence between them, Katsuki just staring at the Alpha's hand with a look on his face. After a moment, Shouto sighs in exasperation and holds out his hand again.

"Your phone." 

"Uh...okay?" 

He hands it to him and fidgets as he taps at it a while, not entirely sure of what he's doing. "Speaking of Izuku," he says, "I told him about putting that video up like that. He can be sort of an asshole sometimes but he's still a good guy." 

"You don't have to take up for him, Deku don't bother me." 

Other than the fact that Katsuki sees him in his dreams now. 

Weasel-y fucker.

"Besides, it mostly just ended up with a bunch of horny fuckers asking me to let them eat my ass." 

A look crosses Shouto's features for a split second but it's gone just as quickly, replaced by something that looks like exasperation.

"What's up with you being so nice to me, anyway? We used to be at each other's throats constantly during high school. What changed?" 

Shouto hands his phone back. "Figured out it was just sexual frustration. Pretty easy to let go of once you fuck it all out." He says with a flat tone. Katsuki can't tell whether or not he's joking, there's not even a smile on his face. 

"I'm fuckin with you." He says, tone still flat. 

"Oh." 

The halfie turned with a shake of his head. "Well, I've gotta get back before they leave without me. Be safe, Katsuki." 

"Sure. Tell your wife I said hi." 

A pause. "She's not my wife." And then he's off again. 

Talk about weird. 

Katsuki decides to get two pints of ice cream.

#

It's well past five in the morning and Katsuki can't seem to get back to sleep, so he's been scrolling through his Facebook feed. Nothing much to look at there other than the memes that pop up from Denki's page every few minutes. For a moment, he thinks about trying to sleep again but an article from TMZ changes his mind. 

'Touya 'Dabi' Todoroki: the greatest Underground fighter of our generation!' 

His thumb hovers over it as he recalls Shouto's earlier warning but his curiosity wins over and he taps it nonetheless. 

The first thing to appear is a link to a YouTube video featuring Touya's greatest knockouts, followed by another video of an interview he had done recently. The article underneath goes on to praise him for his unique fighting style and then goes into talking about Enji, his father, and how apparently he used to be a Pro Alpha as well. 

After the retirement of his rival Toshinori Yagi, he also stepped down because he didn't want to take the number one spot by default. He didn't want it without beating him with his own two hands. 

His original plan was to train Touya and have him beat All Might by raising a better fighter than Yagi's protégé (fuckin' Izuku, of course) but it ultimately backfired when Touya decided to join the Underground League instead. 

So then he turned to philanthropy and building empires from small businesses, dragging Shouto on his coattails to prove a point.

"Huh. Learn something new every day." 

He hits the save button on the article in order to come back to it later, typing in Touya's name in his search bar only to find that the tattooed alpha was already amongst others in his long list of friend requests. He hit the accept button without hesitation, greeted with a saucy profile photo of Touya modeling a pair of Polo boxer briefs and showing off his muscled, tattooed body. 

Nipple piercings. Katsuki should have pegged him for the type. 

The photo pops up in a messenger bubble a few seconds later. 

Touya: hey, doll. 

Touya: you're up awfully early. 

Katsuki: you're one to talk. 

Touya: insomnia. I never sleep. 

Touya: wish I could, maybe I'd see you in my dreams. 

Katsuki rolled his eyes, but couldn't keep his lips from curling into a smile. 

Katsuki: You're so fuckin' corny.

Touya: you like me 😏

Katsuki: maybe 😒

Touya: let me turn that into a definite yes. 

Katsuki: you asking me out? 

Touya: is Midoriya a pretentious prick? 

Touya: the answer is yes. Unless he's actually your boyfriend. 

Katsuki: so he wouldn't be a pretentious prick if he were my man? 

Touya: nah, he'd still be that. I just wouldn't be asking you out. 

Kastuki: well he ain't. 

Touya: so that's a yes? 

Sure. Touya seemed like a fun guy and he definitely wouldn't mind having a couple of wet dreams about him instead of stupid Deku. 

Katsuki: sure, metal head. 

Touya: I told you to call me daddy. 

Touya: whoops, I meant Dabi.

Katsuki: "whoops" my ass. And I ain't calling you that ridiculous ass name. 

Touya: oh, but you'll call me daddy? 

Katsuki: play your cards right and we'll see. 

Whew, okay Kat.

Tone it down with your thirsty ass. 

Touya: God, you're adorable. Are you going to be busy today? 

Katsuki: not really. And fuck you, don't call me cute. 

Touya: whatever you say, love. Lunch at the diner? Say noonish? My treat. Unless you'd rather I take you somewhere a little more expensive.

Katsuki: the diner's fine. I don't care about your money. 

Katsuki: besides, it ain't like we got Red Lobster here. 

Touya: Red Lobster? By expensive, I meant fly you out to Italy for some Italian but okay. 

Katsuki: Extra ass. We literally could've just gone to Olive Garden.

Touya: you're so uncultured, I love it. 

Honestly, Katsuki doesn't know what Shouto was so worried about.