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"But everyone's talking about the top hero list!” The television blares. "No no, not that one— the top hottest hero list! This year's number one is the sexy symbol of peace himself— Pro Hero Deku! Not that I think anyone here is surprised. Just one look at these big green eyes is enough! And—”
Katsuki shuts off the television. He just barely resists blowing it up.
It’s fine. He doesn't care. Deku is objectively hot. And Katsuki is just happy that he himself beat lcyhot this year.
It's not like he doesn't know Deku is gorgeous. He's pretty up close and personal with how hot Deku is. The problem is that ever since that article named Deku as the hottest Pro-Hero, everyone has been a little too… supportive.
It started off innocent enough; when the article dropped there were comments and jokes, but Katsuki could mostly handle that (although if Kirishima weren't so quick with his quirk he might have actually been murdered when he suggested they do an expose on Deku's thighs). But then the agency PR wanted to capitalize on it, leading to a series of shirtless photoshoots that were plastered everywhere , which just made everyone start going crazy all over Deku again. They started getting stopped on patrol fucking constantly so people could take selfies with him or touch his fucking arms. Katsuki is going fucking insane.
It doesn't help that everytime anyone brings it up to him, Deku blushes and stammers some dumb bullshit about being honoured and now ultimately attractiveness was subjective and blah fucking blah and becomes obnoxiously cute and charming. Katsuki can't blame the country for falling in love with Deku, but that didn't make it any less fucking annoying. And it didn't help that they were still keeping this thing between them a secret, so he couldn't even stake his claim on Deku in public.
Yeah, thats what made this whole situation fucking unbearable. Everyone thought the hottest hero was single .
It was bound to come to a head eventually. Katsuki could only take so much of watching people hit on his secret boyfriend. Really, they're just lucky it happened at home and not in public.
Katsuki is making dinner when Deku's phone rings; he doesn't pay much attention until he hears Deku say, voice sounding nervous, "Oh, I don't really think that's a good idea." Katsuki looks over at him, interest piquing. "No, I definitely understand why, but it isn't really— I appreciate the thought but I'm not interested."
"What is it?"
Deku pulls the phone away from his ear and says, "Um, they want me to go on a dating show?"
Katsuki very calmly turns the stove off and then turns around and says firmly, "Hang up the phone, Deku."
Deku takes one look at his face and hangs up without saying goodbye. Katsuki stalks over to him and scoops him up, throwing him over his shoulder without saying another word.
"Wahchan!" Deku yelps. He kicks his feet a bit, and Katsuki smacks him sharply on the ass. "I'm obviously not going to go on a dating show!" He shouts, pounding his fists lightly and ineffectually at Katsuki's back. Katsuki stays silent all the way to their bedroom; then he throws Deku onto the bed and immediately climbs on top of him.
"I've had about enough of this," he says, before claiming Deku's mouth in a bruising kiss.
"You know it doesn't—" Deku tries to say, but Katsuki cuts him off, teeth clamping down on Deku's lip before he shoves his tongue in Deku's mouth. Deku tries to wrap his arms around his neck, and Katsuki pins them.
"Everyone wants a piece of you, don't they Deku?" His voice is low and deadly in Deku's ear, who is starting to squirm and whine beneath him. "Everyone wants to look and touch. They don't know you already belong to somebody, do they?"
"Kacchan—"
"We're gonna have to change that, aren't we? Can't have all of Japan getting the wrong idea." Deku is panting, and Katsuki can already feel him hard against him, from just some kissing and some words. "We know the truth, don't we baby? You know I'm the only one who can give you what you need."
"Yes," Deku readily agrees, always eager. Katsuki moves to bite at his jaw.
"Gonna mark you up, Deku. Gonna let everyone know you're not. fucking. available."
Deku whimpers. "Please," he begs. "Do it, Kacchan."
Fire burns through Katsuki's veins at this explicit permission to mark Deku up. It had been a mutual decision to keep this quiet; they were still early in their careers, and they didn't want everyone in their business. And they could still keep it quiet— Katsuki just needed people to see Deku marked up and claimed. They didn't need to know who was doing the marking.
He yanks Deku's head back by his hair and sinks his teeth into his neck. Deku yells in response, hips jerking against Katsuki's as he starts sucking the first of many bruises into his skin. He gets methodical with it, ensuring they'll last, a mosaic of red and purple etched onto the expanse of Deku's neck. He leaves an obvious trail, starting from Deku's jaw in a line down his neck, a treasure map of everywhere Katsuki has been leading down to where he's going. Deku's collar of his hero costume will cover most of it, but not all, and all it'll take is one conveniently leaked pap photo of Deku in a regular shirt for people to know. Maybe Katsuki can convince him to wear a V-neck so people can really see.
"Kacchan—" Deku is always impatient at times like these, hips still circling against him, hands scrabbling at Katsuki's shoulders. Katsuki pulls back from where he'd been sucking a bruise into the base of Deku's neck. Deku looks up at him with hooded eyes and flushed cheeks, chest heaving and cock hard between them. And all Katsuki has done is give him some hickeys.
He smirks down at Deku, pressing a kiss that is teasingly gentle to his lips. "Top hottest hero, huh Deku?" He teases, fingers coming up to press into the bruises on Deku's skin, making him hiss in pain. "Imagine what they would think if they could see you like this." He starts in on the other side of Deku's neck, biting and sucking at the skin there as Deku moans beneath him. "The really fucken annoying thing is it would just make people want you more. You're so hot, Deku, all desperate and whiny and ready to take my cock. You'd drive the nation mad." He leans in to whisper his next words, a threat right in Deku's ear. "But they can't have you."
"Kacchan—"
He moves down to start sucking at the skin around Deku's collarbone and down his chest. He takes one of Deku's nipples in his mouth, satisfaction curling hot in his gut when Deku gasps and suddenly grabs two fistfuls of Katsuki's hair.
Katsuki's patience runs out all at once. He pulls back to study the mess he'd made of Deku, momentarily content with his work. He'll go back to marking Deku up once he has him split open on his cock. He leans over Deku to grab the lube, giving him another kiss before he coats his fingers. He's feeling a little too sentimental towards the shitty nerd today.
"Do you know how many people would kill to see you like this?" He asks, shoving two slick fingers into Deku's ass and watching the way his back arches off the bed. "How many of them probably jerk their worthless cocks to the thought of you beneath them? When they think about you, do you think they know what a little whore you are? Or do you think they'd be surprised at how fucking dumb and desperate you get when you want cock, hmm?"
"Kacchan," Deku whines again. It seems to be the only word he knows, just how Katsuki likes him.
"I guess it doesn't really matter, does it Deku?" Katsuki pulls out his fingers and slicks up his cock, pressing the head to Deku’s hole, but he doesn't push inside yet. "Do you know why it doesn't matter, Deku?" Deku nods weakly; at some point he'd started to cry, although Katsuki can't be sure when. "Yeah? Can you tell me? Tell me and I'll fuck you, Deku. Why doesn't it matter what they think?"
Deku's eyes struggle to focus on him, and he can see the way he fights to gain coherency in the face of Katsuki asking a question.
"Because…" Katsuki can practically see the gears turning in Deku's head. It's offensively cute. "Because they don't get to see me like this."
"Good boy," Katsuki says, rewarding him by pushing the head of his cock inside his ass, enjoying the way he can feel Deku stretch around him. "And why is that Deku?"
Deku frowns and squirms, and Katsuki grabs a hold of his hips to keep him still.
"Because — because only Kacchan gets to see me like this.”
Something about the way he says this, like it’s one of the indisputable facts of the universe, makes Katsuki's heart beat out of time in his chest. He leans down to kiss Deku, lips and tongue a little overeager.
"Yeah, baby," he says, hoping Deku is too fucked out to hear the desperation in Katsuki's voice. "That's it, Deku. Only I get to see you like this. Only I can make you feel like this." He thrusts completely inside Deku, relishing in the strangled cry Deku gives as he bottoms out.
"Yeah," he whimpers, clutching onto Katsuki as he starts to fuck into him harder. "Kacchan's, m'Kacchan's."
Katsuki groans and kisses him again. "Everyone wants you, Izuku," he growls into Deku's open mouth. "But I'm the only one who gets to have you."
"Just you," Deku says. "Don't want anyone else to see, Kacchan."
Katsuki swears and fucks into Deku faster. Deku is fucked out and delirious, and Katsuki knows he shouldn't put much stock in the horny ramblings of a cock drunk Izuku, but he can't help how much he likes hearing Deku talk like this, like they belong exclusively to each other. Deku loops his arms around Katsuki's neck and hauls him down to kiss him again, mouth opening eagerly under Katsuki’s; he grabs the back of Deku's thigh to push it further back against his chest, pushing deeper inside him. Deku cries out, fingers tangling tightly in Katsuki's hair.
"Let them see, Kacchan,” Deku says into the kiss. "Yours, yours, let them see.”
He's going to come, just as much from Deku's words as from the feeling of him tight around Katsuki's cock. He wraps a hand around Deku's dick, trying to get him off before Katsuki does. Deku is still whining his name as Katsuki fucks him into the mattress, arms and legs wrapped so tightly around him that Katsuki can barely get a hand between them to jerk Deku off. It doesn't take long for Deku to come, spilling over his hand as he comes apart in Katsuki's arms. Katsuki looks down at him, face blissed out, skin marked up, for Katsuki's eyes only— and he comes, and as he's coming he gasps out, "I love you."
It doesn't take long, after he comes, for the horror to creep in. He makes the mistake of looking Deku in the eye; they're wide and bright from crying, and they're filled with surprise.
Katsuki rolls off of him and onto his back, covering his eyes with his arms so he doesn't have to see Deku. "Shut up," he says, before Deku can do or say anything. “I don't want to talk about it."
"Okay," Deku says slowly. Katsuki can feel the bed shift as he rolls onto his side. "Can I… say it back?"
Katsuki stays very still, as if any movement will break whatever fragile moment he accidentally walked into. He clears his throat but he still keeps his arms crossed over his face. "Do you want to or are you just—"
Deku doesn't even let him finish the thought. "I want to," he says, cutting Katsuki off. There's a large swell of emotion in his chest, and Katsuki can't say he's too fond of the feeling.
"Then— yeah," he grunts. "If— if you want to."
Carefully, Deku says, "Would you move your arms?"
"No," Katsuki says immediately.
"Okay," Deku concedes easily. "Can I touch you?"
"...Yes," he says.
Immediately he feels Deku's hands on him, and he presses a kiss to Katsuki's shoulder. "I love you too, Kacchan," he says. "You don't have to be embarrassed."
"I'm not fucken embarrassed," he spits, despite all evidence to the contrary. Deku wisely doesn't respond to this, as he's long since learned to pick his battles, where Katsuki is concerned at least.
"Okay," Deku says again. "You don't have to say it again until you want to. But can I say it again? Like... can I keep saying it?"
Katsuki moves his arms away, rolling over to immediately shove his face in Deku's neck instead. "Yeah," he mumbles. "Want you t'say it again."
"Okay," Deku says for the third time. Katsuki can fucking hear the smile in his voice, the stupid sappy nerd. "I love you, Kacchan."
"Shut up," he says reflexively. He wraps himself more firmly around Deku and then says, "Say it again." Deku does— over and over and over, until Katsuki has to find a creative way to shut him up.
The picture is everywhere by the next morning, posted by an "anonymous source," who just so happened to have a chance to get up close and personal with hero Deku during a late night trip to the convenience store. PR is pissed, as is half the country when they find out Deku isn't single, but despite the myriad of theories and news articles trying to figure out who was sucking on Deku's neck, the identity of his mystery lover isn't revealed until the two of them decide to do so. And until then, Katsuki has a grand time staking his claim on every inch of Deku's skin he can reach.