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Izuku sunk into the cushioned seat as the plane took off, the velocity making his stomach swoop a bit but he was too tired to pay it much mind. His wounds had stopped bleeding after the rudimentary clean-up job he had done on the most secluded stretch of road they could find between upstate New York and New Haven airfield.
They’d elected Kirishima to run into the pharmacy as the one among them that was the least bloody and the least likely to forget bandaids in favor of blue raspberry sour straws. Kaminari was indignant about that but he didn’t deny that he had a weakness for anything that was a violently unnatural color.
Their fight with Shigaraki was still fresh and none of them wanted to be separated for long so, in the end, Kami sat quietly with his head on Ochako’s shoulder and Kirishima was in and out of the store in under 5 minutes. Izuku sat in Katsuki’s lap, both of them listening to the others talk while they fought to stay awake against the immediate crash of adrenalin.
Rhodey had been waiting for them at the airfield, the rest of their team had gotten there ahead of them and unloaded everything they had collected from this job. A lot of artifacts that would need to be returned to their rightful owners and a few that would need to end up in the right museums, their owners long dead but still important.
That would be their next mission. Izuku thought they could make it into a vacation of sorts seeing how he could never properly relax while there was still work to be done. And there was always work to be done. But spending a few days in each place could be okay. He’d talk to the team about it later.
Now, he was less likely to fall asleep if he closed his eyes but his mind was exhausted. The mission had gone on for two weeks as they’d planned but it had taken so much more out of him than he had expected. And given him his hearts most selfish desire.
Katsuki sat next to him, he hadn’t let Izuku be more than a few feet away from him for a few hours now. Not that Izuku was complaining, the very opposite in fact. It was still surreal but every time Izuku started to doubt or question how things were he could just look to Katsuki and usually found him already looking at Izuku in return. Like he might disappear if bright red eyes weren’t on him for too many minutes at a time.
The attention was more than his poor heart could handle in the best way. He’d been utterly without shame for the first hour after the fight but then Katsuki had disinfected his wounds and kissed his split knuckles so tenderly that Izuku thought he would melt. He’d spent most of the intervening time since then in a constant state of blushing and fighting the embarrassing giddiness that threatened to choke him.
They’d been in the air for a few minutes now, their private aircraft courtesy of All Might was the perfect place for them to celebrate the win and lick their wounds. Already, Kaminari and Cami were connecting a laptop to the speakers and scrolling through an intimidating playlist. Inasa was getting everyone drinks like the gentleman he was while Shoto and Shinsou helped patch the others up properly.
He was listening to Mina praise the headlock Ochako put Dabi in when he felt the now familiar tingle from those brilliant red eyes. As if Katsuki could touch him without even needing to lift a finger.
He turned his head to find his partner already looking at him, his gaze intense and layered in a way Izuku couldn’t immediately read. He tilted his head in silent question to which Katsuki stood and held his hand out to Izuku expectantly. Never one to keep him waiting, Izuku took his hand quickly and let himself be pulled to his feet.
Grabbing one of the medical kits along the way, Katsuki led him to the bathroom just as music started to play throughout the plane. The bathroom on the private jet was bigger than those on commercial airplanes but was still far from roomie. The two of them barely fit inside together but that didn’t stop Katsuki from closing and locking the door behind him.
“Your nose looks better already,” Izuku comments, the swelling had gone down almost immediately after they’d set it back in place but the bruising was just getting started.
“Gonna have double black eyes again,” Katsuki looked at himself in the mirror clinically, the comment just a statement, not an insecurity.
“I still think you’re handsome, even when you’re a little bruised,” Izuku replied shyly, still working himself up to give the more intimate compliments he’d always held back.
“That right?” Katsuki put the first aid kit in the little sink in favor of putting both hands on Izuku's hips. Izuku instantly felt like jello. Katsuki leaned in, a teasing grin on his lips Izuku couldn’t look away from making a fire ignite in his veins. Katsuki stopped a breath away, holding Izuku in place as he tried to lean forward and claim the kiss he was being baited with.
“Lucky me,” Katsuki said in a gruff voice, his lips brushing Izuku's skin as he spoke. Izuku actually whimpered when Katsuki pulled away. “You need stitches, dumbass,” Katsuki chuckled at him and Izuku suppressed a pout.
“It’s not that bad, I think some glue and the butterfly bandages should work,” Izuku argued. He did not mention that that was the quicker option as well.
“Fine, stitches always scar worse anyway,” Katsuki agreed easily already pulling Izuku's shirt up and over his head.
“I’m not too worried about that, just add it to my collection,” Izuku said it lightly but Katsuki didn’t smile. He was worried he was about to get a lecture, again, about how he might have fewer scars if he stopped throwing himself into danger head first, but it didn’t come.
Instead, Katsuki grunted and got to work. Izuku stood still while he applied the medical grade super glue to the minor stab wound on his stomach. Izuku’s skin felt raw and sensitive everywhere Katsuki touched him, his calloused hands making him break out in goosebumps. Katsuki blew on the glue once it was in place like that would actually help it dry, making Izuku shiver embarrassingly and blush again in the face of Katsuki’s teasing little smirk.
Izuku turned to the kit for something to do and picked up a bandage. He gently grabbed Katsuki’s jaw and turned his head to see the cut just behind his ear. He carefully disinfected it again before taping the white gauze to Katsuki's pale skin. On impulse, Izuku leaned in and placed a careful kiss on the skin just below the bandage and was rewarded with Katsuki’s breath hitching and his grip on Izuku’s hip tightening.
“This is going to take forever if we keep this up,” Katsuki complained but looking at his face, Izuku could see he was embarrassed and pleased in equal measure.
“You’re right, Kacchan,” Izuku agreed easily now that he’d had a bit of revenge. He needed more bandages than Katsuki did anyway so he knew it was a losing battle. He let Katsuki work in peace, hyperfocused on every brush of skin and heated gaze he got. The pain barely registered, nothing compared to the cocktail of feelings he was getting drunk on everytime Katsuki let his fingers linger.
This was ridiculous. They’d known each other pretty much all their lives, been fighting and cleaning each other up for years. But suddenly, in the face of their recently changed relationship statues, every touch which should have felt routine brought fire instead. He’d never felt anything like this before. Izuku had always known his feelings for Katsuki were singular and unique but he never would have guessed how amazing and new everything would feel if Katsuki ever returned those feelings.
Katsuki finally finished covering his wounds with the butterfly bandages over the glue, his fingers lingering after making sure they were secured. Izuku stopped breathing as hot fingertips skirted over his bare stomach, lightly up his chest, just barely over a nipple, and came to rest on the unbandaged side of his neck.
He let himself be pulled in, all too willing to go where ever Katsuki would guide him. Very aware of Katsuki’s healing nose, Izuku met his kiss lightly. Both of them tender and gentle with the other as they finally met again in what was quickly becoming Izuku’s favorite pass time. Their tongues slid against each other, drawing a groan out of Katsuki who tighten his hold and kissed him with more urgency only to immediately draw back with a hiss.
“Fucking ass hat just had to get my damn nose,” Katsuki growled as he winced.
“It’s ok,” Izuku was quick to say, he didn’t really want Katsuki thinking about Shigaraki right then. “We can-”
“Shut up,” Katsuki snapped and winced again, “I mean, I know what we can do, and I know what I want to do.” His voice was like gravel as he made an effort to soften it. The music outside tried to drown them out but all Izuku could focus on was Katsuki, all but hanging on his every word. “You’ll tell me if you want me to stop. If this is too much too soon or whatever.”
It wasn’t even a question, more a demand, but Izuku nodded all the same.
Katsuki started with his light touches again; whispering his fingers over Izuku's shoulders and chest while he placed barely there kisses against any free skin he could find. He found an angle on Izuku’s neck that he could suck on without causing either of them pain and Izuku moaned. His knees were ready to call it quits but Katsuki kept him up with one firm grip on his hip.
Izuku needed to return the favor, the need the explore and discover was almost overwhelming. He got under Katsuki’s shirt and pulled it up quickly so they could both keep their hands on each other. His fingers were less feather-light but more caressing, finding and loving every curve and dip of Katsuki’s bare torso. He ran his nails lightly over Katsuki’s shoulder blades while Katsuki moved to find a new place to suck a mark into and they both moaned into each other’s skin.
Izuku was letting Katsuki lead this time and he was beyond pleased when the other man unbuttoned his pants. He very quickly did the same, needing to fulfill every wet dream he’d ever had about the man before him. Without much thought between them, their pants and underwear were around their ankles in seconds.
Izuku felt breathless when Katsuki touched him again. His cock had been at attention for most of their time in the bathroom and he could have cried with the relief of Katsuki’s hand on him. He fumbled a bit, reaching blindly for Katsuki’s length and finding it easily. He was just as hard as Izuku making him think he had been struggling just as long as Izuku had.
“Fuck,” Katsuki hissed as Izuku wrapped his hand around his cock. It was almost the same sound as when he was in pain but more restrained, like he had to hold back from showing the full extent of his feeling. Given the full plane they were on, Izuku could understand but he planned on getting them somewhere they could be loud as soon as possible.
They started stroking each other while their mouths continue to explore. Katsuki, the brilliant man, paused long enough to get a little packet of petroleum jelly out of the med kit and squeeze some in his hand. He took both of them in hand and groaned through his teeth as their heated lengths rubbed together.
He put his glorious biceps to work and he pumped them both with his slick hand. Izuku couldn’t repress his needy, breathless little huffs with every stroke. Katsuki started biting the places he was marking, leaving a collar of bruises that were wholly different from any other on Izuku’s body.
“Fuck, you look so good like that. I want to leave a fucking mark for every fucking scar you have,” Katsuki almost growled, like he couldn’t hold the thoughts back anymore. Izuku felt himself twitch just from the sound of Katsuki’s wrecked voice and praise.
“You like that?” Katsuki asked like he even needed to. Izuku just nodded and had to bring a hand up to his mouth to keep himself from getting too loud. Their usual rolls switched at the moment, Izuku didn’t think he could utter more than a syllable if he tried. He was getting close and he thought Katsuki might be too, he could feel the other man’s pulse in his cock as they were squeezed together.
Until Katsuki stopped. He slowed before holding them together while he kissed Izuku on the lips again carefully. In a quick, firm movement, Katsuki turned them and spun Izuku around so he was standing in front of the sink and mirror of the tiny bathroom. Izuku wasn’t sure he was actually prepared for where this might go but he trusted Katsuki with everything.
Katsuki watched him from over his shoulder in the mirror. He watched his own hand trail up and down Izuku’s torso and the shiver that followed in its wake.
“I fucking love watching you react to me,” Katsuki’s voice was husky in his ear and Izuku pressed back into him. He ground his ass into Katuski’s hard cock in single-minded determination to get them both to cum. “So needy,” Katsuki teased but he groaned as he thrust a few times in the crevice of Izuku’s cheeks.
He trailed his hand down to tease Izuku’s cock for them both to see. Izuku was flushed red from embarrassment and arousal as he eagerly sought out that touch.
“Katsuki… please…” Izuku whined.
“I’ve got you, ‘Zuku. Just let me look, I need to see you,” Katsuki breathed against his neck and Izuku twitched again, cock bouncing of its own will at Katsuki’s words. “Fuck, you’re so good, squeeze your legs together for me. Just like that.”
Izuku did as he was told and was rewarded with a few light strokes before Katsuki pulled off for a few seconds. As quickly as he could, Katsuki squeezed the last of the petroleum jelly onto his hand and Izuku could guess where it was going from there. His clean hand returned to its new favorite spot on Izuku’s hip and his breath hitched as he felt Katsuki’s cock teasing at the seam of his pressed thighs.
“I love you,” Katsuki said as he met Izuku’s watery eyes in the mirror and before Izuku could reply, he thrust. His hard cock was hot and slick and the motion was so ungodly arousing that Izuku moaned loudly as he gripped the counter for support. The head of Katsuki’s cock was nudging at his balls sending surprising shocks of pleasure through every nerve in his body.
“I need you to stay quiet for me,” Katsuki brought his clean hand up to cover Izuku’s mouth while his other still slick hand found his weeping cock again. Thankful for the hand over his mouth, Izuku whimpered as Katsuki teased the head of his cock in the guise of spreading the lubricant around.
“You’re so fucking beautiful, Izuku, I can’t fucking believe it took me so long to realize,” Katsuki groaned as he started slowly pulling back and thrusting in again in long strokes. His hand on Izuku’s cock matched his pace and it was all Izuku could do to keep his trembling legs held tight together.
“I can’t believe I’ve been missing this,” Katsuki gradually picked up his pace, his thrusts becoming more shallow as he panted hot breath into Izuku's neck. Katsuki bit down just as he hit against Izuku’s balls again and he actually cried out his pleasure, the hand over his mouth the only thing keeping his voice contained.
“Fuck, I want to hear you,” he sped up, his husky voice becoming almost desperate as his pace increased and his grip tightened. Izuku was a mess; he was freely moaning into Katsuki's hand and involuntary tears were gathering in the corners of his eyes and his ass was jiggling like crazy with every thrust. But he didn’t feel any of that, all his focus on the hot points where Katsuki was touching him and the words spilling from his lover's mouth.
“I love you, I- fuck- I need you, Izuku,” Katsuki panted desperately, “I want to keep you all to myself, I fucking love you so much- ah fuck fuck.” He thrust hard twice and came. His cum shot hot and coated Izuku's thighs in burning white stripes. The sight, his words, and the hand still on his cock sent Izuku hurdling after him, cumming hard enough in Katsuki’s grip that he splatter the mirror in front of him.
He felt like he was floating even with Katsuki's arms around him. They were panting and a bit sweaty but Izuku had never felt better. When Katsuki removed the hand from his mouth, he was still letting out little breathy moans, the aftermath of his orgasm and the lewd sight in the mirror too much for his fizzled-out brain.
Katsuki couldn’t seem to look away from the sight of them either. His blood red eyes took in every detail of exactly how debauched he had managed to get Izuku in the span of a few minutes. Izuku felt Katsuki’s cock give a tired little twitch between his thighs and felt like he was glowing with just how stupidly pleased he was right then.
After catching their breath for a moment, Izuku carefully reached back and let his fingers thread through Katsuki’s spiky hair. He craned his head around to kiss the side of Katsuki’s mouth with a smile.
“I love you, too,” Izuku said into his skin. Katsuki wrapped both arms around Izuku's waist and squeezed gently, careful of his wounds. They stayed like that until the cum on Izuku’s legs started to get cold and gooey and prompted him to finally take a step away from his partner.
They cleaned up quickly, the musical stylings of Denki Kaminari reminding them that their entire team was just one flimsy door away. Katsuki helped him wash up and ran a cool paper towel over Izuku’s face in an effort to make his flush go away. They laughed when they realized all the medical supplies were only saved from bodily fluids because of their waterproof packaging.
“How long do you think we were in here?” Izuku asked a little nervous about reemerging.
“Long enough that they will definitely know something was up,” Katsuki replied and smirked like he was looking forward to Izuku's impending embarrassment. He unlocked the door and stepped out and Izuku had no choice but to follow.
“Finally,” Shinsou muttered and passed them so he could use the bathroom. Izuku felt a little bad about hogging the only bathroom on a plane but couldn’t bring himself to feel any actual remorse.
“So what took you guys so long?” Mina asked with a shit-eating grin from where she sat playing cards with Kirishima, Shoto, Inasa, and Cami.
“Mind your own business,” was Katsuki's only response but he sounded unusually calm which only added to the mischievous glint in everyone’s eye. Katsuki walked past them like it was nothing, going to rummage through his bag while Izuku stood frozen. Everyone’s gaze fixed on Izuku like he was the only prey for miles and they were the hungry predators.
Mina raised a perfect eyebrow, her evil smile still in place.
“N-nothing! We were just- I- Kacchan thought I needed stitches but I just needed some butterflies, that’s all,” Izuku knew he was screwed. They already clearly knew they were doing more than just first aid, he wasn’t sure why he was trying to hide other than the fact that this was all new to him and he had always been a bit prudish.
“That’s very nice of Kacchan to give you butterflies,” Kaminari appeared at his side and poked Izuku’s blushing cheek, “did our sweet Kacchan give you anything else?” Katsuki snorted looking far too pleased with himself. Izuku resigned himself to having heart palpitations until he was worn down by the teasing.
“I mean, he did an excellent job patching me up,” Izuku tried.
“Did he also need to suck poison out of these snake bites?” Kaminari shouted and yanked the collar of Izuku's shirt down to show the group his new collection of markings. Everyone broke out into ooh’s and applause and Izuku just barely resisted putting his burning face in his hands.
Katsuki pulled something out of his bag looking smug and handsome and confident and Izuku glared at him. Katsuki just shrugged in response and threw the bundle at Izuku who welcomed the Edgeshot hoodie and planned to never give it back.
“Ok, yes, we may have made out… a bit,” Izuku was still trying, he couldn’t seem to stop. Shinsou rejoined them and threw his arm around Kaminari’s neck.
“Is that why it smells like sex in there?” Shinsou said and smirked on a Katsuki level while everyone’s cheers doubled. Even Shoto was clapping next to a loudly whooping Inasa.
Izuku finally gave up and stuffed his head into the sweatshirt to hide his shame. He was also hiding his smile. He couldn’t let them win everything!
Kaminari and Shinsou were patting him on the shoulders while they laughed. Izuku only came out of his hoodie hideout when a pair of familiar arms wrapped around him. He wiggled his arms out through the arm holes and felt his hair poof up with static as he emerged. Screw it, he couldn’t hide his smile in the face of Katsuki looking at him with that soft gaze Izuku was only just starting to get acquainted with.
Kirishima brought them both something pink and fizzy to drink and clapped them on the back, his smile big and toothy for his friends. Izuku felt like his heart was going to burst with how warm and fuzzy he felt at that moment, taking in everyone’s joy at his newfound and hard-fought happiness.