Work Text:
“Villain down, done deal, next,” Katsuki says, dusting his hands in a show of pride.
Izuku walks back over to him after signing paperwork with the cops and making sure they head out safely. “We’re only a little over halfway through patrol, though,” he smiles, a small twitch in his eyes.
“I told ya you should’ve eaten with me instead of working overtime on your perfect notes, bricks-for-brains. Now you’re hungry, ain’tcha?”
“I just wanted to make sure I didn’t miss anything. The kids have been really enjoying the class content recently and I… hang on, did you call my notes perfect?” Izuku crosses his arms over his chest, rests on one leg, and raises his eyebrow. “When did you sneak a peek, Kacchan?”
“Hey, don’t change the subject, nerd.” Katsuki walks up to him and flicks his forehead lightly. “Do you need me to cover for you to stuff your face? I can steal all your kills and surpass ya,” he grins.
“You need to stop calling saves ‘kills,’” Izuku snickers. “Besides, I love our patrols. I don’t want to miss a second.” He places his hands on Katsuki’s chest, trying to softly push him away, to which Katsuki doesn’t budge. “And I'm fine! Really! I'm totally not that hu—!”
Izuku’s stomach growls like a rabid Nomu before he can get the lie out. He sheepishly and swiftly turns away from Katsuki. “Hey, is that a limited edition All Might in NYC figurine?” he rambles before bolting off. Katsuki shakes his head and follows the light of his life.
Just at the end of the shift, the Wonder Duo perch on their agency’s rooftop with a few onigiri Izuku quickly grabbed from a 7-Eleven. They’re coordinating with Kirishima’s agency for the season while they languidly sort through applications, and Kirishima gave them the a-go to rest up as it was a pretty slow day overall.
Katsuki only actually had one out of five, but he kept swiping them from Izuku to mess with him.
“Kacchan, give me a break,” Izuku grumbles, standing to try and grab the last onigiri before Katsuki pulls it further out of his reach.
“No, you give me a break, Deku-sensei! I didn’t figure out the whole suit shit so you could die of ADHD mismanagement,” Katsuki retorts, getting up too. Once out of Izuku's reach, he begins unwrapping it, seemingly going to eat it.
Izuku softly closes his eyes, breathes in, and huffs, about to apologize again. Katsuki doesn’t want an apology; he wants his future husband to lock in. “I promise I'll get out of my own head and eat with you before patrol next time, Kacch—”
He’s cut off before he can pull out his winning doe-eye look. Katsuki kicks behind one of Izuku's knees so it buckles and catches the tipped Izuku by his jaw. Katsuki then presses his fingers against Izuku's cheeks and stuffs half an onigiri in Izuku's shocked, parted mouth before letting go.
Izuku tumbles to the ground, disoriented and blushing while trying not to choke on the onigiri. Katsuki smugly walks over to him and throws Izuku a water before clearing their trash into a can by the door. Katsuki hears Izuku approaching once he’s done and glances at him over his shoulder. Izuku, about to throw his water out too, tries to kick Katsuki but narrowly misses—Katsuki cleanly swerving to the side.
“Roughhousing Teach over here, hah?” Katsuki flips him the bird and grins.
Maybe the snacks haven’t quite settled yet, or maybe Izuku just really wants his "lick back," because he pursues Katsuki. “Kacchan, you’re being a brat,” Izuku says, glaring at him.
“I thought you could handle a brat or two, Sensei. You mad?”
Izuku jolts at the drawl in his voice when Katsuki calls him "Sensei" and turns his back to him. He crosses his arms and huffs, trying to hide his reaction to the pleasant surprise with a pout. Katsuki moves next to Izuku and imitates his crossed arms. He bends a little to get in Izuku's peripheral, and when Izuku notices him, he hopes his blush isn’t still visible. Katsuki snickers.
“You getting off on riling me up?” Deku tilts towards him.
Katsuki straightens up. “Ooo! What’re you gonna do, spank me?”
Of course, Izuku’s body moves on its own and his palm cracks over Katsuki’s ass like a whip. He was going to cross his arms again when the pathetic moan from Katsuki sinks in. He pauses, looking over at him—arms crossed, muscles tense, face flushed, and a shiver creeping through his body.
Izuku blushes again, breaking the silence. “Do you…” a smile tugs at his lips, “want to explore that when we get home or—”
“GOD, please, yes,” Katsuki blurts out, his voice getting quieter with each word.
The hand that started all this balls into a loose fist which Izuku uses to stifle his amusement. Katsuki, who was hiding behind his bangs, glares at Izuku. “You think this shit's funny, hah?” He stomps over, closing the gap between them. “And you’re not making it home, are you?”
Izuku makes a motion to cross his arms again, but Katsuki grabs them and jerks Izuku's hands to his own hips. “For fuck's sake Izuku, I can barely make it off this rooftop.”
They book it down from the rooftop to their shared office as sanely as they can. But when a flustered Katsuki fumbles with his card, struggling to lock the door, how could Izuku stay sane? ‘I wasn’t gonna make it home myself,’ he thinks as he runs his thumbprints along the neck of his cape to dismantle the suit. Almost in the blink of an eye, the suit settles into its disguise of a briefcase and softly plops on the ground.
Izuku, dressed in a button-up and black slacks, looks up from admiring the masterpiece that changed his life to see Katsuki looking at him like he was a masterpiece in his own right. Katsuki breaks the silence, clears his throat, and hovers his hand over his mouth. His voice is soft and surprisingly small. “You don’t have to listen to a brat like me, you know? We can go home, change, forget about it...”
His ears turn red and he looks away. So that’s what got him nervous all of a sudden, Izuku thinks. He tries to commit the scene to memory before he firmly grasps the wrist over Katsuki’s mouth and pins it above the blonde on the door. Izuku snakes his other arm around Katsuki’s waist, pulls him closer, and places a solid, sentimental kiss on his lips. Then another, then another, then one more with tongue.
Feeling Katsuki melt beneath him, Izuku decides to progress. He grinds against Katsuki, pulling him even closer.
“Fuck,” Katsuki gasps.
Izuku, eyes half-lidded, places a firm kiss on Katsuki’s cheek before abruptly stopping. “Now that we’re clear,” he says, moving away from the riled-up blonde while unbuttoning his shirt. He leans against the frame of the daybed they placed away from their desks and palms his erection.
Katsuki looks at Izuku incredulously, breathing hard. “God, you drive me insane.”
Katsuki closes the space between them quickly, kissing Izuku hard and fast. He guides Izuku's hands to the clasp of his utility belt and zippers. Izuku undoes them, pulling the suit off layer by layer in between kisses. When Izuku slides under the last layer to feel Katsuki’s muscles tense and relax with every touch, Katsuki pulls back and slides his top off. Izuku sits on the bed.
As usual, Izuku leers at Katsuki’s figure. He especially takes in Katsuki’s chest—his muscles defined and the healed skin over his scar taut.
“I’m not some delicate, frail weakling,” Katsuki had blurted out a few months ago. It was their first time going all the way. “So promise me you’re not gonna treat me like some pillow princess, else I’ll blow your fucking brains out, ya hear me?!”
Back then, Izuku had just grinned and nodded; he was too tense to comment. Katsuki was nervous too, and yet he was able to get his truth out. Since then, Izuku learned to be braver and braver.
“You’re always so sure.”
“I can’t help but admire you.”
“You’re a lot of things, Kacchan, and weak isn’t one of them.”
Before Katsuki can place Izuku's hand over his chest to snap him out of his thoughts, Izuku trails a calloused finger over the outer edges of the scar. Katsuki is a little surprised since he knows the nerd still has his reservations over the scar. Izuku looks up at him, doe eyes calculating god knows what. Just as Katsuki is about to ask, Izuku places his lips on the scar and sucks. Hard.
Katsuki gasps at the sensation, gripping Izuku's hair to sustain himself. Izuku moves to Katsuki's nipple, letting his tongue map it as it gets sturdier. He moves his trailing finger to the other nipple as well, slightly rubbing. Katsuki clenches his jaw, his moans getting higher pitched. By the time Izuku has littered Katsuki’s neck and shoulders with hickeys, Katsuki thinks he’s had enough of standing, too.
He tugs Izuku back by his hair, eliciting a low moan, and pulls the rest of his suit off to stand in his briefs. Once Izuku does the same, Katsuki crawls on top of him and hurriedly marks him all over. He makes it as far as sucking and biting on Izuku’s collarbone, shoulders, and biceps before an impatient Izuku dry humps him as a plea. Katsuki reins himself in and lays beside Izuku so Izuku can get on top.
Izuku pulls Katsuki’s bangs back and lays a firm kiss on his forehead, then on his cheek scar, then on his lips, before descending. Izuku teases with feather-light touches on his abs, tracing all over until he reaches the band of Katsuki's briefs. When Izuku dawdles like this, he isn’t just asking for permission—he wants to hear Katsuki’s wishes.
Katsuki cries out, “Izuku, please,” and hands him the lube that was hidden under one of the pillows.
Izuku smiles, satisfied. He sits up, pulls the briefs off Katsuki, and gets to work. He takes in how every twist of his thumb around the head causes Katsuki to grip the bed; how every jerk causes his muscles to tense and relax; how a kiss and a lick causes Katsuki to arch his back and moan like the sensations are overwhelming him.
Izuku gives Katsuki a second to breathe. He takes off his own boxers and grabs the lube. He lines Katsuki’s entrance and coats his fingers. First finger in, he looks at Katsuki—who is already watching. Izuku decides to hold his gaze and thrusts back and forth. Katsuki doesn’t waver, so he continues. While looking so, so innocent, he adds a second finger. Katsuki breathes much harder now, fingers flexing against a pillow and the bedsheet, but his gaze hasn't faltered yet.
“Keep it coming, you softie,” Katsuki retorts, now looking away and leaning back as if from boredom.
Izuku chuckles, and Katsuki spares him a glance. “You of all people should know better, Kacchan,” he pulls out and re-lubes his fingers. He lines them up again and his voice reverberates, low and lustful, “than to play with fire.”
Izuku thrusts four fingers into Katsuki this time, his thumb rubbing the rim, earning him an arch in Katsuki’s back and a moan of a lifetime. Izuku uses his other hand to give well-deserved attention to Katsuki’s throbbing length. He watches as shivers wrack Katsuki’s whole body.
“Holy fuck, Izuku, hold on, I’m gonna cum!” Katsuki whines, flexing and relaxing his muscles to gain some composure.
Izuku releases him and pulls out his fingers. He grabs Katsuki’s thighs, pulls him closer, and pushes his knees toward his chest and over Izuku's shoulders. Izuku slots two fingers back in and massages Katsuki’s walls. When he reaches as far back as he can, he finds the spot he was looking for and presses.
Katsuki tenses, then sighs deeply, letting his eyes close. He rocks his hips, and Izuku switches from steady pressure to short pulses. “Fuck, that feels so good, Izuku,” he whispers like a prayer. They both go at it for a little bit longer, thin milky liquid leaking from Katsuki, until Katsuki reaches out and grabs Izuku's face.
“Enough,” he pants, “I need you.” His red eyes are glossy but determined.
Izuku nods. “Okay, Kacchan.” He pulls out his fingers and backs up. “Do me a favor and get on your knees, please.”
The politeness in Izuku’s otherwise obscene request causes Katsuki to blush, but he does as requested. He flips around, down on his knees with arms stretched in front of him. He places a pillow beneath his chin and relaxes. Katsuki draws hearts and circles in the sheets until he hears Izuku chuckle to himself.
“You’re losing it, ‘Zuku, mumbling and laughing to yourself all the damn—”
Izuku slaps Katsuki’s ass, almost causing him to fall over, then grabs the blonde's hips and thrusts into him. Katsuki doesn’t think he’s ever whimpered this hard. He attempts to steady himself on the pillow again, but Izuku wraps a hand around his dick and he can’t think anymore.
“You always feel so good, Kacchan. You’re doing so well,” Izuku moans through the thrusts. “Is this okay? Do you feel good? Can I make you feel better?”
Izuku queries, and Katsuki doesn’t know how he’s expected to form a coherent sentence. Izuku presses his thumb over Katsuki’s tip and strokes him with the pre-cum as lube. “Oh my god, Izuku, fuck.”
Izuku releases his hold for a second to grab his ass and spank him one more time. Katsuki moans and tears prickle his eyes. He bites down on the pillow to hush himself, the fabric steaming a little.
“Is this too much? Should I slow down?” Izuku places his hand on Katsuki’s hips, slowing his pace.
“Don’t even fucking dare!” Katsuki growls. “I can take more—I want more, fuck, keep going, please…”
With not even a second to waste, Izuku places his hand on the small of Katsuki’s back and pushes him down before fucking him deeper and harder. “S-shit, ngh!”
Katsuki is losing his mind, feeling his length rub against the sheets. Izuku spanks him with his other hand and pinches his cheeks. “Stay at that angle if you can, honey,” Izuku coos.
Releasing his hands to grip Katsuki’s hips one more time, Izuku realigns himself. With an agility and precision only he can pull off, Izuku thrusts at the perfect angle to pummel into Katsuki’s prostate. Katsuki chokes on a moan, squeezing his eyes shut to feel some semblance of control over the pleasure gushing through him.
Izuku goes at it again and again, getting faster and more erratic. He releases a hand to soothe Katsuki again, and the sensation tips him over the edge. He feels all kinds of pleasure explode through him, tensing every muscle. The feeling around Izuku’s cock makes him climax, too.
Izuku keeps thrusting to ride the high a little longer, and Katsuki thinks he’s going to pass out. When Izuku finally pulls out and releases him, Katsuki collapses onto his side, breathing heavily. Eyes still closed, he settles on listening to Izuku's rustling. Sooner or later, there’s a nice cold towel wiping him off. He opens his eyes finally to see Izuku hovering over him, cleaning him up with love in his eyes.
“Good thing we went shopping and restocked,” Izuku says, marching into the bathroom to wash the cloth once more. He comes back without it and pulls on his boxers. “How’re you feeling?”
“Over the fucking moon,” Katsuki answers, eyes half-lidded, trying to hold back a dopey grin.
Izuku smiles wholeheartedly and reaches his hand out to help Katsuki up. Katsuki sighs and takes it, pushing away muddled thoughts and memories—they’re all in the past now anyway. Izuku hands him the change of clothes they brought, and they get dressed.
Once they’re done, Katsuki holds Izuku by the waist and rests his head in the crook of his lover’s neck. Izuku runs a hand through Katsuki’s hair. “You wanna go home and order some beer and mapo tofu? I’ll change the sheets tomorrow.”
“Best idea you’ve had all day, nerd.”
