Chapter Text
Rain. Of course it had to rain on one of the only occasions Izuku decided to go outside besides school. As always Izuku’s luck was shit, no surprise there, so of course today was no different. Izuku was used to things like this happening so he just tried his best to get through it. He held his head low and his steps patted quickly on the wet sidewalk, rushing home to get out of the heavy rain.
Not only was it hard to see as his hair kept going into his face and blocking his vision, but the floor was slippery as well. Not only that, Izuku was about to cry because of how uncomfortable he was. His wet clothes clinging grossly to his freckled skin. The conditions were unfortunate so he failed to see the crack in the sidewalk he should've walked over. Too busy with his complaint filed thoughts to notice it. “Ahh!" his arms quickly flailing forward to brace himself. His arms hit the sidewalk and scraped the skin off. The feeling was burning and unpleasant but it was better than his face.
He was exhausted, the day was already extremely tiring. He had to do a ton of homework and then when he finally had free time he decided to go out to get his mom a present for her upcoming birthday. Because of that he brought his school bag with him so he didn't have to carry it in his arms but he knew that if he took all his school stuff out it would be a bother to put back in so he took it all with him to the mall.
So the backpack was weighing down, making it harder to get up. Not to mention some jerk ass teenage boys were making fun of him for his outfit that day. He knew he wasn't exactly a ‘fashion expert’ but it wasn't even that bad, they just wanted someone to pick on. Nonetheless, it all made it hard for him to stand. He just wanted to be home already, in his warm bed without worries of the outside.
—
Izuku groggily blinked his eyes open. The familiar scent of burnt caramel and gunpowder filling his senses. Izuku pulled the soft covers closer to his bare skin. Why did he feel so comfortable? He was just… Wait—Izuku quickly opened his eyes and sat up in alarm. Where the hell was he and what the hell happened? He was struggling to access the situation with tiredness still heavy on his mind. Instead he felt strong arms pull him back down onto the mattress, into the warm heat again. “Calm down Deku. It's just me idiot." Kacchan said roughly behind his ear, though the remark had no bite to it. Instead it made Izuku feel hot down there.
Recently, he and Kacchan had been more… intimate. Specifically, they now kissed regularly. They also had touched each other, though neither of them had talked about it. What it meant, what they even were to each other. Each afraid to break the comfortable silence on the topic they both just decided to let it keep going. Katsuki had even stopped bullying him— though he never let anyone but himself make snide remarks about the verdant haired boy, much less lay a finger on him. He basically kept Izuku as his personal punching bag— both emotionally and physically. But now? This was just emotional. Touching Izuku whenever and wherever he pleased, making Izuku squirm with worry whenever he did it during school but letting him continue nonetheless.
Izuku knows he should say something but… the silence continues anyway. From the blond and from the green haired boy. Izuku just decides to focus on the warm arms wrapped around himself instead. It was so easy, to lean onto Kacchan, to let himself sink into the comfort. So he did. He let his eyes shut back close and relaxed. He didn’t think about anything important— just Kacchan. That was until he felt the hand that was holding his own— glide down his body. “Uhmp!” Izuku let the small noise slip out of him when Katsuki’s fingers teased along his nipple. “Horny, baby?” Katsuki said knowingly as he continued playing with his chest. Of course he was, Izuku was always desperate for these things. Horny dork– although he couldn’t deny that he loved seeing the nerd like this. He kissed the back on his neck, along his shoulders. Feeling Izuku shudder at the gentle touches.
The unaffected rain still paddering heavily against the window. The lighting was dim, the sun was not visible, only it’s light shining slightly, making the sky a soft gray color.
The touches felt nice on Izuku skin but he felt a bit awkward. Katsuki was still fully clothed, with a plain black shirt and long black shirts that reached his knees. Even if it was shameful, Izuku could admit that he wanted to see Kacchan too.
Katsuki’s other hand had started to play with his other nipple as well and Izuku’s already nonexistent dignity was dwindling as he let out more and more mewls of pleasure. “K-Kacchan..!” Izuku whimpered out his name, making Katsuki's pants feel a little less roomy. Izuku definitely feeling it as their bodies were flush against each other. “Gonna cum for me already, De-ku?” Katsuki barked out, saying his name in a particularly cruel and teasing tone. Katsuki was loving the sight of Izuku melting under his touch. He wanted to make Izuku into a puddle of whimpers and then some. “S-stop…” A tear fell down the soft skin on his cheeks. The overstimulation becoming too much. Katsuki stopped his ministrations and instead brought a hand up to Izuku’s face, pulling him to look each other in the eye. “What's wrong?”
He whimpered and sniffled quietly before answering. “P-please! Stop teasing me…I really want to cum– I'm so horny for you Kacchan. Please please please let me get what I want! I need it so bad Kacchan- Please I want to cum so bad–oh my gosh-” Izuku had started rambling out needy begs as tears fell from his emerald eyes. So fucking cute. The blond haired simp thought to himself. He leaned forward and captured Izuku’s lips in a rough kiss, silencing his parade of whines and pulling him closer. Wasting no time dipping his tongue into his warm mouth, the kiss was fast paced, deep, and breathtaking. Izuku felt addicted to the way Katsuki’s lips pressed firmly into his own and the way his tongue expertly explored the familiar cavern.
When he finally pulls away he sees Izuku looking back up at him with a wanting expression that says ‘keep going’. Who is he to refuse? His dick certainly agrees as it throbs at the sight of Izuku panting with a pathetic appearance and big eyes staring at him. He flips Izuku onto his back suddenly, pulling the latters soft thighs onto his shoulders for the perfect position to give head. The surprised moan that Izuku let out wasn’t anything worth noting but it still somehow made Katsuki’s pants feel impossibly more tight.
His hands dipped under the fabric of Izuku’s boxers and pulled them down. Sliding them off of his legs slowly and leaving him as naked as the day he was born. Izuku was about to say something about Katsuki’s clothes still annoyingly being on but his mind was interrupted when heat enveloped his cock. “Oh- ohhhh…” What started off as a sentence quickly turned into more wails and gasps of pleasure. Katsuki’s tongue expertly swishing around Izuku’s cock, taking him down like a champ. Katsuki sank down all the way to the base of Izuku’s cock. His nose inhaled near the verdant pubes, smelling a hint of the appley soap the nerd uses. Izuku felt Kacchan’s throat swallow around him and let out a cry from how good he felt. Katsuki started bobbing his head up and down, quickly falling into a comfortable rhythm that he knew Izuku would like. From the sounds hitting Katsuki’s ears, he humored that maybe ‘like’ was an understatement.
“Kacchan—I'm gonna—!” Izuku moaned out the warning. Too lost in the pleasurable sensations to even finish his sentence. Katsuki just sank down even further on his cock, making sure he would swallow every drop of seed Izuku was about to spill out. Izuku would normally make a fuss about Katsuki tasting his cum but at this point he was too far gone. With the pleasure overtaking him, all he could do is try to buck further down into Katsuki’s wet, cushy heat.
Katsuki zealously swallowed down Izuku’s spend. Not popping off until all of it was down his throat. By the time he was done and sat up to take a look at his work, he could see Deku was still in a fucked out daze. Laying there silent except for the soft huffs of panting he let out.
His face was overtaken by a toothy grin as he saw the effect he had on Izuku. “Head that good, huh?” Izuku tried glaring at the blond but it was ineffective when it was paired with the pink hues spreading across his face. Katsuki only seemed more amused at the display of faux rudeness. He wasn’t worried, even if the expression of sass had an actual bite behind it, he’d fuck that look off his face either way.
He quickly spun Izuku around to lay on his stomach, startling the verdant haired boy as he tried to get his bearings in the new position. Gosh, what perverted thing was Katsuki trying to do now? Although his mind was filled with complaints, his boner pressing against the sheets was telling a different story. Izuku knew this but decided to ignore it lest he embarrass himself any further. Staying quiet as Katsuki pulled him into a new pose. Katsuki put a pillow under Izuku’s waist to lift his ass up, giving him easy access.
Once he was done he leaned back to appreciate the sight. The beautiful ass sitting pretty on Izuku’s behind, freckles tattered everywhere along his back and legs. Fuck, he wanted to smack that frecked ass so bad. He felt himself throb in his pants as he imagined it jiggling and red hand shaped marks being set there. Izuku would wail out sobs of pain and pleasure. The thought of Izuku singing that sweet melody of moans into his ear was almost impossible to not linger on but he pushed it away apprehensively. He had to get to work on the meal in front of him.
Izuku felt nervous. He wasn’t sure what Katuki was doing but he trusted him. His anxiety was not soothed much though when Katsukui had leaned back and didn’t do anything for just a second too long, Izuku feeling the ruby eyes stare onto his back with lustful intention. He was about to turn his head around to question the blond but before he could, a long wet stripe of tongue was swiped along his asshole. He still had no idea what was going on, yes he watched porn but he’d never seen anything like this! Was it even okay to put your tongue in an area like that? Well— Izuku supposed that he was clean down there and I mean, people put their mouths in the front area so this wasn’t too surprising. He’d just not expected a tongue.
Izuku’s mind was quickly racing to explain what was happening to him but it had lagged a bit. The pleasure making it hard to think. Katsuki always did this to him, making him forget what he was even doing after Katsuki kissed him was a common occurrence. Same problem was happening here but after he got his bearings, he let himself melt into the erotic scene. Letting out desperate mewls and moans as Katsuki confidently did such embarrassing things. Though he’s not one to complain with his howls of sex filling the bedroom.
Katsuki’s tongue was plunging deep into the greenettes tight hole. Flicking it through the foreign cavern, exploring the heat. He was trying to find his prostate. He learned about it after reading some erotic manga and hoped to have the same effect on Izuku. The muscle was easy to find, Izuku’s moans were confirmations that he was in the right place. Once he found it, it was over for Izuku. He focused on it and swished across it roughly. Attacking it with determination and thanking his father for the long tongue genetics. He added two fingers to work along side it. Scissoring him open with them.
Although he and Izuku had gotten ‘closer’ lately, they’d never actually gone all the way yet. Today that was gonna change. The damned nerd just had the fucking nerve to get cuter and cuter everyday. Most of the time he didn’t even touch himself or ask Izuku to. He couldn’t help it. Seeing Izuku whine and beg for more as he bucked deeper into Katsuki’s mouth gave him the pleasure he needed. Gosh, when will he ever not get off to the thought of Izuku feeling good because of him? Never. He hopes.
“Ahhn—Ngh! I’m gonna cum— Kaccaaaaahn!” There it was, that quickly reminded Katsuki of why touching himself wasn’t necessary. Izuku screaming out his name was just the cherry on top. His ministrations continued, got more zealous even. He wasn’t finished opening up Izuku yet, if he managed to make him cum twice that was a bonus though. Okay, maybe Izuku was open enough but sue him! It’s not his fault that Izuku was sexy, he was just giving into what the universe was telling him, ‘Keep ass eating Katsuki!’
Izuku’s whines became more apparent as overstimulation ran through his body. Soft tears began to flow down his face but even with the pleasure becoming so much for him, he had no intention of telling Kacchan to stop. The whines slowly turning into moans, the moans going straight to Katsuki’s dick when it hit his ears.
Katsuki continued using his tongue to pleasure the greenette, his fingers still working alongside it, making sure Izuku was open enough and ready for him once he was done. As he felt Izuku shudder and clamp down once again, he finally stopped the thrusting of this tongue and fingers. He pulled out of Izuku and wiped his mouth of saliva. He saw Izuku burying his face in the pillow as he came down from his high. Katsuki leaned over his back to make sure he was okay.
He rubbed a comforting hand down his back and tilted closer to his ear, whispering softly: “You alright, Deku?” His voice had the usual gruff to it but it still made Izuku feel warmth across his face and butterflies. “Mhm..”
After hearing the confirmation, Katsuki waited a minute for Izuku to catch his breath after the intense orgasm. Giving him soft kisses along his neck and back, comforting words and hugs soothing the verdant haired boy.
After Izuku seemed to calm down, Katsuki lifted him up into a new position. Izuku was put on top of the blond, into a riding position. “Huh..what’s this?” Izuku questioned. Katsuki chuckled up at Izuku’s display of confusion. He knew what it was but he wanted Katsuki to spell it out for him. “After I did all that work making you cum so much for me…I thought it’s only fair you help me out too.” Katsuki leaned his head back as he put his arms behind his head, relaxing into the pretty view in front of him. “Ride me, Deku. And no touching yourself, I want to see you cum on my cock.” Izuku felt himself blushing again at the blunt statement. “Wait– we're really going all the way this time?” Izuku felt nervous, he wasn’t expecting this. He wanted to do it but at the same time he was scared. What if he was bad at it and didn’t make Katsuki finish? Or worse, what if he finished too quickly and wasn’t able to continue afterwards? Gosh, that would be embarrassing as hell.
Katsuki noticed the look of anxiety on his face. “Somethin’ wrong?” Katsuki asked as his face scrunched up slightly. “Not up for it?” “No! I want to!” Izuku said quickly, almost cutting Katsuki off. Katsuki was surprised at Izuku’s eagerness. Izuku was too, if the embarrassed look on his face was saying something. Katsuki only chuckled at Izuku’s ready reply. He brought his hands from behind his head to Izuku’s legs. “You’ll do good Izuku, just trust me. If you need help I can guide you.” Izuku still had a sheepish look on his face, he nodded in confirmation. “Alright, lift your hips up.”