I'll Be Wearing Green - Part 5 [NSFW] [FINAL]

By the time they made it up the stairs to Izuku’s apartment, his jeans were straining at the seams. He couldn’t get that breathy voice out of his mind, so low and so close to his ear. It wasn’t fair, the way Katsuki could be so effortlessly sexy – Izuku couldn’t achieve that even if he tried, let alone just on a whim!

He stepped aside to let Katsuki go in first, following him inside and making sure the door was locked behind him. The moment their privacy was secured, and their shoes were set aside, Izuku threw caution to the wind and wound an arm around Katsuki’s neck, pulling him in close.

“Show me,” he whispered, nipping lightly at Katsuki’s neck and praying it wouldn’t make Katsuki shove him off. “I’m all yours.”

“Damn right you are,” Katsuki smirked, tangling a hand in green curls. “Gonna make you beg.”

“That won’t be hard,” Izuku chuckled, grinding his crotch against Katsuki’s, pleased to find a bulge waiting for him. “How about I say ‘pretty please’ right now and we skip right to the fucking?”

“That could be arranged.”

With a grin, Izuku reached around to grab a handful of Katsuki’s ass, bringing his lips to Katsuki’s ear and feeling goosebumps rise on the tanned skin.

“Pretty please, Kacchan, I want you to fuck me.”

Katsuki grabbed him under the thighs, hitching him up to carry, and Izuku giggled despite himself – he knew it wasn’t sexy to be laughing on their way to the bedroom, and he tried his best to hold it back, but he just couldn’t help it. Never in his wildest dreams had he ever considered that he could end up on his way to bed with Kacchan, that was beyond anything he could ever have imagined. Katsuki didn’t seem to mind the laugh, though, just hitched him up a little higher as he padded down the hall in his socks.

“Uhh...” Katsuki began, glancing at a couple of closed doors. “Which one is your room?”

Izuku couldn’t stifle his laughter this time, and Katsuki had to lean against the wall to brace them both, Izuku’s body practically convulsing in his arms. He was so damn good at ruining the moment over the stupidest things, it was no wonder he had such bad luck with relationships.

“You’re an idiot,” Katsuki murmured into his neck. “Come on, either tell me where your damn bed is or I’ll have to fuck you here in the hallway.”

“Sorry,” Izuku giggled, trying his best to get the laughter back under control. “I know I am. It’s the door on the left, you can put me down if you want.”

“No way.”

Katsuki kept his firm grip, straightening up to walk the rest of the way, and somehow it made Izuku smile – maybe Katsuki didn’t mind if he ruined the moment after all.

“So you still mutter too much, huh?” Katsuki hummed, throwing Izuku onto his wrinkled duvet. “You didn’t ruin shit, cut it out.”

“Sorry.”

“None of that shit either. Sex is meant to be fun, stop stressing yourself out.”

“Easy for you to say, you’re not the one about to sit on your childhood best friend’s dick.”

“Would you prefer it if I did?”

Izuku raised an eyebrow, looking up at Katsuki’s face. It was surprisingly open and honest, and Izuku didn’t quite know what to say.

“I’ll take that as a yes,” Katsuki shrugged, when Izuku just stared at him blankly. “You wanna stretch me or should I do it myself?”

“I- You- You’re gonna- I can-? What?”

“Alright,” Katsuki snorted, spreading a hand over Izuku’s chest and pushing gently, until he was laid out on his mattress. “You clearly need to calm down before we make these decisions. Can I kiss you or is that too intimate?”

“I like intimate.”

“Oh good, a straight answer,” Katsuki teased, leaning in closer and pinning Izuku to the blankets. “Relax for me, Deku. If you don’t like it we can stop, there’s nothing to be afraid of.”

“I’m not afraid,” Izuku pouted. “I just… You’re Kacchan.”

Katsuki bristled at that, backing off a little.

“What, like you can’t get past seeing me as a little kid or some shit?”

“What? Where did that come from?”

“You don’t want to fuck me because Kacchan?”

“I never said I didn’t want to fuck you!” Izuku squawked, blushing bright red. “Oh gosh I hope my neighbours didn’t just hear that.”

“Oh, they definitely did,” Katsuki snorted. “Then what is it?”

“I’ve always wanted to fuck Kacchan,” Izuku mumbled, covering his face with his hands. “I just can’t believe it’s real.”

“Is that all?”

“You make it sound like it’s no big deal!”

“It isn’t,” Katsuki shrugged. “You have me now, isn’t that what counts?”

“When did Kacchan get so mature?”

“You don’t like it?”

“I do.”

“Then look at me, Deku.”

Izuku cracked his fingers apart, surprised to find a little smile crossing Katsuki’s lips when their eyes met.

“There he is,” Katsuki smirked. “There’s the anxious nerd I know.”

“Know and love?”

“Don’t push your luck.”

Katsuki slowly unzipped Izuku’s puffy jacket, working his hands underneath the fabric and gently peeling it off him when he got no complaints. Izuku reached up, and Katsuki halted in his tracks, relaxing a little when Izuku tore off his bright red hoodie and threw it aside. He waited still, letting Izuku’s fingers creep under his shirt and run across his abs, until finally Izuku found the confidence to drag him back down close.

“You promised me a kiss,” Izuku smiled softly. “I’m waiting, Kacchan.”

Katsuki leaned in, pressing their lips together with a surprising gentleness, and Izuku moaned into his touch. Every part of him was so hot, from his lips, to his abs, to the hand that cupped Izuku’s cheek tenderly.

“I’ll take good care of you,” Katsuki promised. “Do you want to do this?”

“I do.”

“Okay. Let me help you relax, then.”

He gently pulled away, sliding to his knees at the edge of the bed and reaching for Izuku’s jeans. He yanked them down along with his boxers, and Izuku breathed a sigh of relief as his dick sprung free – he hadn’t realised exactly how confined he was until it was finally over. The relief was gone again in an instant when Katsuki’s tongue trailed up his shaft, leaving a hot, wet strip from the base to the tip. Izuku moaned, throwing his head back when Katsuki’s lips wrapped around his head and sucked lightly, and Katsuki’s mouth twitched as if he might smirk even around the cock.

“So good,” Izuku gasped, when Katsuki sank lower, swallowing him down. “Amazing, Kacchan.”

A little huff of air came out Katsuki’s nose, and it took Izuku a moment to catch on – he wondered if that was the first time in history that someone had laughed while giving a blowjob.

The thought left him quickly, Katsuki humming around him and sending vibrations all the way down his shaft and into his spine, his whole body arching as he fell under Katsuki’s spell. That was what it had to be, after all – no one could possibly make Izuku feel this good without some kind of witchcraft.

Katsuki’s eyes narrowed at him when he reached out, tangling his fingers in blond spikes, but when a moment passed and he hadn’t pushed or pulled at him, he seemed to relax again. Izuku didn’t need to force him into anything, didn’t need to take control of the pace, all he needed was to feel Katsuki in his grip, to remind himself that this was actually happening and not just the resurgence of a wet dream he’d had often back in high school.

“Want you to fuck me,” Izuku whined. “Kacchan, pretty please.”

His whine grew louder when Katsuki popped off, but Katsuki just snorted at him, wrapping a merciful hand around him to stroke slowly as Izuku gathered himself again.

“You sure you want me to do it?”

“I’m sure,” Izuku nodded. “Take care of me, okay? Be gentle.”

“Of course I will, nerd. Where’s your lube?”

“Bottom drawer.”

Katsuki leaned over to grab it from the nightstand, hidden away with a few other toys that mad him raise his eyebrows. He picked up a bright orange dildo, holding it up where Izuku could see him, and Izuku groaned as his face turned bright red again.

“Nice colour,” Katsuki smirked. “You choose it for a reason?”

“Shut up, Kacchan.”

“Mine’s bigger.”

“It better be.”

Katsuki snorted, tossing the toy back in the drawer and grabbing the lube instead, shaking the bottle lightly to make sure there was still enough of it in there – from the look of it, Izuku used the stuff regularly. All the same, he lubed up a finger, giving Izuku a quick little rub across his hole as warning before he slid it all the way in.

It went in easily – unsurprisingly, Katsuki thought – but Izuku tensed up around him, making it harder for him to move or stretch him out any further. Rather than wait for Izuku to calm down enough to ask him to relax, he just leaned forward again, managing to find an awkward half-crouched position where he was able to swallow Izuku’s dick again and make him whine for more.

“That’s the way,” he praised, when he popped off for a breather. “Just let me make you feel good, Deku. Relax for me.”

Izuku nodded frantically, moaning when Katsuki sank straight down to the base, his nose pressed dark hairs. He was in half a mind to tell the nerd to clean himself up, to get rid of them or at least trim them if he was planning on getting blown again any time soon, but he supposed neither of them had shown up on the date expecting it to end like this. Katsuki had expected a few drinks with some relative stranger, some awkward small talk as they acted as if they hadn’t been sexting for the better part of a month, and maybe, if it went really well, a kiss goodnight as they parted. Never in his wildest dreams had he expected the night to end with sex, let alone with his childhood best friend slash high school rival slash competitor for number one hero.

“Kacchan,” Izuku groaned, tossing his head to the side. “I can hear you thinking.”

Katsuki responded by pulling back his lips, letting sharp teeth graze over Izuku’s skin, and sure enough, the complaints ceased immediately.

“Don’t be like that,” Izuku huffed. “I’m happy it turned out this way. I hope you are too, Kacchan. There’s no one else I’d rather have in my bedroom.”

Katsuki lubed up a second finger, sliding it in beside the first, and thankfully, Izuku’s sentimental nonsense gave way to shallow breaths and stifled moans.

If he’d known he could shut the nerd up so easily with a finger in the ass, he might have tried it out in high school.

The nerd probably would have loved that, come to think of it.

It didn’t take long for his third finger to find its way in, and then Izuku was thrusting frantically, trying to push them deeper while Katsuki forced him to calm down and go slow. The idiot was going to hurt himself if he got his way, and Katsuki knew he was the one responsible for keeping it all safe and sensible.

“You ready?” He asked, when he pulled off with a last little lick over the slit, smirking when Izuku bucked up into his touch. “You’re gonna have to relax for me again.”

“I’m trying,” Izuku whined. “You make it really difficult.”

Katsuki stood up, stretching out his cramping legs, and after a moment he sat down on the edge of the bed. Izuku watched as he cautiously lay down beside Izuku’s sweaty body, pulling him in gently for a slow, soft kiss. Izuku seemed to melt into his touch, forgetting about everything in the world but their joined lips, and Katsuki took the opportunity to lube himself up as they kissed. It only took a few quick strokes, unwilling to push it any further lest he ruin the night right then and there, but then he was pulling away again and Izuku was clutching at him desperately.

“C’mere,” Katsuki instructed, turning them around to lie on the bed properly. “Get comfy, nerd. Want you to be relaxed.”

“You know, nerd isn’t exactly a cute pet name.”

“Alright, fucking honeybuns or whatever, just get up here.”

Izuku giggled, and Katsuki couldn’t help but smile too. Izuku’s happiness was so infectious, not that it was difficult to be enjoying himself in his position. Finally, though, Izuku slid up the bed, nestling into his squishy pillow and beaming up at Katsuki sweetly. Katsuki knew he didn’t look approachable, especially in the bedroom – with his narrowed eyes and furrowed brow it was no wonder people didn’t approach him for his phone number or to buy him a drink. To use the damn sparkplug’s words, he always looked ready to slap a bitch.

Izuku never seemed intimidated, though.

In fact, with that same stupid smile still on his lips, Izuku reached up, cupping Katsuki’s cheek in a scarred hand and stroking it gently with his thumb. It gave Katsuki goosebumps, his touch so light it made him tingle, and for a long moment they just watched each other in silence.

“You’re so handsome,” Izuku said finally, grin stretching impossibly wider. “I’m so lucky, Kacchan.”

“Damn right you are.”

Izuku giggled again, and this time Katsuki cracked a smile, shuffling himself to kneel between Izuku’s legs.

“You still want this?”

“Of course, Kacchan. As soon as you’re ready. I trust you.”

“Good,” Katsuki hummed, leaning in to kiss him once more. “If you change your mind, just tell me to stop. I promise I will.”

“I know, Kacchan.”

Katsuki wrapped a fist around his shaft, repositioning a thick thigh with his other hand, and then he was lining himself up at the waiting hole, gently beginning a slow, steady thrust into Izuku’s warmth.

With their bodies linked together so perfectly, Katsuki felt liked they’d merged and become one person. There was no Katsuki and Izuku anymore, no Kacchan and Deku, just one mass of pooling heat and heaving lungs, of fingers lacing together, and teeth finding necks, and lips so close the shared the same breath.

As he thrust in and out, slowly increasing his speed and power, he watched the freckled face for any sign of discomfort or pain or regret, but all he found was those same open, innocent eyes, staring up at him, baring his soul for Katsuki to see.

“Touch me, Kacchan.”

Katsuki ignored all the snarky comments that filled his brain, about how they were already touching more than they’d ever touched in their lives, about needing to be more specific. Instead, he just shifted a hand to Izuku’s chest, raking his fingernails lightly down the scarred skin as he continued his steady pace of in, out, in.

He wrapped a hand around Izuku’s cock, beginning to stroke him in time, and Izuku’s mouth fell open on the loudest gasp Katsuki had ever heard. He smiled again, watching as Izuku fought to keep himself sane and conscious amidst the pleasure, but then his head was falling back again, his back arching to lift his hips clear off the bed, and white fluid hit Katsuki in the chest.

“Good boy,” Katsuki praised, slowing off his strokes as he helped finish Izuku off, his own cock still rock hard in Izuku’s ass. “That’s good, baby. Relax, feel how good it feels.”

“You too, Kacchan,” he gasped. “Fill me up, please.”

The desperation alone was almost enough to tip Katsuki over the edge, and despite his concerns about overstimulation he began to thrust a little harder again. Izuku didn’t complain, didn’t even cringe, he just moaned like the sexiest porn star in the world as Katsuki chased his own pleasure.

All at once Katsuki tipped over the edge – tumbled off a cliff, more like. He came harder than he’d ever come before, and that included the endless, frantic tugs in high school that could go on for hours as a time. It began to spill out onto the blankets as he made his last shallow thrusts, emptying his tank completely, and Izuku just smiled at him again with that exhausted, adorable smile, as he pulled out and watched it go everywhere.

“Kacchan is gonna have to keep me warm,” he beamed. “I’ll wash it tomorrow.”

Katsuki nodded faintly, wiping off his chest and crotch with a corner of the duvet before he tore it off the mattress, giving Izuku a quick swipe between the legs before he finally cast it aside.

He fell onto the mattress with a sigh, oddly content, and then Izuku was snuggling into his arms, tucking them both under the sheets and making sure Katsuki had enough pillow to get comfortable. Despite the sweat sticking them together and the half-assed cleaning job, it was all sickeningly perfect, and Katsuki could already feel himself getting addicted.

“Thanks, Kacchan,” Izuku mumbled, tucking his face into Katsuki’s neck. “I feel good.”

“Me too,” he admitted. “Can I stay the night?”

“You can stay forever.”

“Careful nerd, I might take you up on that.”

He felt cheeks twitch against his neck, that smile stretching wider again, but Izuku just held him a little tighter.

“Works for me,” he yawned, cracking on eye open to glance at the clock on the bedside table. “I could use some more early nights.”

“It’s gonna have to be extra early if you wanna do this every night.”

“Sounds good. You wanna wake me up like this too?”

“Sure,” Katsuki smirked. “If you think you can keep up.”

“Didn’t you know, Kacchan? I’m an athlete, I can keep up with anything.”

“Yeah,” Katsuki snorted. “And I demolished your ass.”

Izuku giggled, joined by a little chuckle of Katsuki’s own, but then silence fell between them, Izuku contemplating how best to phrase the words.

“Oi nerd,” Katsuki grumbled, before Izuku could get there. “In the morning, I’m deleting your account on that dumbass app. Got it?”

“Gladly, Kacchan. It already served me better than I ever expected.”

“Yeah,” Katsuki agreed, sighing and letting his eyes fall closed. “Just don’t say that to the dumbass extras I hang out with.”

“I wouldn’t dream of it.”