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The pleasures of the locker room.

Summary:

Tenya has been obsessed with Izuku for years; his best friend had become the center of his fantasies, and he has been taking drastic measures—especially involving Izuku's used underwear. But when Izuku finds out, Tenya has no idea what his best friend is planning.

Notes:

Happy early birthday, Tenya—and a shout-out to one of my favorite ships, DekuIida; they’re just so cute. But instead of writing a fluffy, sweet fic, the smut muse inspired me to write this one.
This is dedicated to tjlyricz, whose story *I Give You Control*—even though it was IidaDeku—inspired the creation of this story.

Work Text:

His toes curled over the edge of the pool and the defined muscles in his calves tensed as he readied himself. Further up his perfect legs, my eyes trailed each inch. His knees, thighs, and finally, the magnificent bulge contained tightly inside the dark blue swimming trunks that I forever wished to inhale.

 

Tenya knew those weren't the kind of thoughts one should have about their best friend. Sure, friends could feel admiration for one another—and me and Izuku had come a long way since first meeting at the entrance exam: classes, training, battles against villains, war, and now, practically in their third year, just weeks away from graduating and becoming professional heroes.

 

I doesn't know when his thoughts about Izuku began to change; the only thing he was sure of now was that he eagerly awaited the days when they had swimming practice. I longed for these days. Of course, I could still steal glances in the locker room, but without a doubt, what I saw during swimming practice was what fueled his nightly fantasies in the privacy of his room.

 

Izuku was the pinnacle of perfection. Everything about him, from his green eyes and his scarred skin, muscular body and the trail of green hair that led from his belly button, down into the treasure chest of his trunks. Every bit of him made me swell with excitement, and who could blame me? Not only was Izuku extremely hot, but rather was genuinely good, always looking to help—the epitome of a hero. It would have been easy to have felt bitterly jealous of Izuku, but I was more concerned with loving him, than hating him.

 

He soared through the air like an arrow. Every dip, curve and muscle in his body looked tight and strong. His toes pointed downwards and his thick arms extended out over his head, and as quickly as Izuku had jumped, he was gone. The water swallowed him, and he surged through it as I stood up from the bench. He was easily one of the best swimmers in our class—even though his physique wasn't the classic swimmer's build, his technique was excellent.

 

I stepped back slowly, edging out of sight as the whole class watched the pool intently, waiting for the handsome young man to emerge, all wet and beautiful. I was also eager to see him again, but I had other things to do which were slightly more important.

 

As soon as I’d escaped the rest of the class, my brisk walk turned to a run. I had less than ten minutes to do what I needed to do, and after this many months, I’d perfected my timing. I hurried back into the empty changing rooms and rushed toward Izuku’s locker. I was well aware of how very creepy this was, but I simply couldn’t contain myself. It felt like I was in a desert whenever I was around him, and the only source of hydration was right here.

 

I plunged my hand into the locker and found his clothes, rolled up in a warm ball, heavily worn throughout the whole day. I felt the fabric of his pants, socks, and shirt, and then, right where they always were, I plucked his boxer briefs out and held them to my face.

 

I had noticed his extraordinary scent when we rescued him during the war, after he had left U.A.; undoubtedly focused on fighting AFO and Shigaraki, Izuku hadn't bathed, so the first thing we did upon his return was share a bath—guy-style.

 

I volunteered to take Izuku’s suit and clothes to be washed, and that was when I smelled it. Having an older brother meant body odor wasn't exactly a constant in my life—sure, he smelled, but nothing like Izuku. I found myself inhaling the scent of Izuku’s clothes as if it were ambrosia, until I realized what I was doing and stopped myself.

 

Yet the urge returned; trying to fill that void, I would offer to wash his clothes, but as a model hero student, Izuku didn't believe in letting others handle his responsibilities. So, I took a different approach: I sought to be close to Izuku after training sessions or in the locker rooms. Izuku believed I was just by his side because I was his best friend; he had no idea of ​​my true intentions.

 

His aroma was the most beautiful thing I had ever inhaled. The powerful stench of sweaty cock and balls, mixed with the sweet ripeness of his intoxicating asshole. Every time I huffed his underwear, my entire body came alive with excitement. It had become a drug to me. Every time I had the pleasure of changing with Izuku, I knew that I’d get to do this.

 

I opened them up, desperate for a wet, warm treat, and found only some pre-cum stains that had poured from him and dried throughout the day. Instinctively, my tongue brushed over them, and I tasted the light flavours as they became moist with saliva.

 

“Fuck” I moaned, pushing my trunks down my thighs and grasping my plump, hardening cock.

 

I covered my entire face with them and sucked the musky air into myself as I jerked off. Like any other eighteen year old, I was no stranger to beating my meat, but the most pleasurable wanks always came when Izuku’s used underwear was draped over my face.

 

I imagined having an endless supply of them, all damp with his fresh loads. I imagined the taste and the texture, dripping into my mouth as I pumped vigorously. My toes began to press into the tiles below, and I knew that in just a couple of seconds, my pent up horniness would burst from my eager cock and spray onto the floor.

 

I gasped, groaned, and just as I felt my balls tighten in preparation, I heard him.

 

“Tenya?!”

 

With the underwear wrapped around my head, I panicked and stepped backwards, falling over the bench behind me, and landing hard on the tiles. My trunks had fallen to my ankles, my hands manically searched for them, and all the while, Izuku’s underwear remained twisted across my face.

 

“But what are you doing with my boxers??!” The voice spat, and finally I managed to get to my feet and unmask myself.

 

Izuku stood before me. The one person on the planet who I didn’t want to see. His eyes were wide and showed his disgust, and his mouth hung open as though he was about to scold me.

 

“Izuku, I’m so sorry” I managed, cringing as I stuffed his wet underwear back into his locker. “I… I can explain!”

 

His face contorted as he grimaced. What had I done?! I winced and stepped back as he approached me. I expected a punch. In fact, I would have welcomed a punch if it meant that I’d forget all about this horrible ordeal.

 

“Please Izuku” I whimpered, pressing my back against the lockers as he stepped closer again. “I’ll quit the Class A” I told him, “I’ll stay away from you from now on, I’m sorry”.

 

He continued watching me like I was his prey. His eyes flickered up and down my half naked body, and then, much to my shock, Izuku grinned at me.

 

“No you wont” he whispered, and looked back over his shoulder as the sound of the approaching team echoed through the room. “You’re gonna wait right over there until this place clears out, and then you and me are gonna have a little chat”.

 

With those words, the male classmates burst into the room, and I scurried back to my own locker in shock. What was he going to do? Was he going to beat me up? Report me? Expose me to the rest of the class? Maybe even the rest of the U.A,?! The knot in my stomach twisted as I sat down on the bench, sweating nervously.

 

I watched as everyone around me began to change out of their swim clothes. Usually, the sight of so many cocks and asses would be enough to make me pop a boner, but even as the muscular, handsome guys from the class A walked around with their cocks swaying, all I could think about was how very fucked I was.

 

The bell rang shortly after, and slowly, my classmates dressed and left. One by one, I watched as they unknowingly left me to face the wrath of my ex-best friend. When the room finally emptied, Izuku walked over and locked the door.

 

“So you’re the one who’s been sniffing and licking my underwear?” He asked, strolling back toward me.

 

I felt sick to my stomach. He’d known that someone was doing it, and I’d stupidly allowed myself to be caught red handed. I lowered my head and sighed.

 

“I’m really sorry, Izuku” I said sincerely, “I know you’re going to report me, but I’m sorry, anyway”.

 

I could see his bare feet right in front of me now. He was standing over me, still wearing his tight trunks, with his hands on his hips. Perhaps he was trying to intimidate me, and it was working.

 

“Report you?” He scoffed, “why would I do that Tenya?”

 

I glanced up at him with my cheeks still blazing red. If he wasn’t going to report me, then what?

 

“You’re gonna beat me up?” I asked timidly, and he scoffed again.

 

“You could try running away from me!” He smirked, and point to the engines in my legs.

 

 I lowered my head again, and waited for whatever punishment he decided to dish out. How had I messed this up so much?

 

“Stand up” he said, and beckoned me to my feet with his hand.

 

This was it. My ex best friend who I had been lusting over for years was about to beat the shit out of me, and all I could do was stand up and take it like a hero. I swallowed nervously, took a deep breath, and got to my feet as my body trembled.

 

He was shorter than me by a couple of inches, and I could feel him glaring up at me. I closed my eyes, tensed my body, and waited for the pain, but a moment later, I felt something that wasn’t painful at all.

 

Izuku’s lips pressed against mine, and my eyes shot open. For the briefest of moments, I was sure that Izuku had indeed Smash punched me, and now I was dead, and this was heaven.

 

His tongue pushed into my mouth, and I could taste him as he held the back of my neck and kissed me with such passion that my cock began to swell inside my trunks. I couldn’t believe it. I couldn’t believe any of it. Just a few moments ago, Izuku was preparing to beat the shit out of me, and now he was kissing me.

 

I tried to kiss him back, but my mind had completely exploded, and all I could do was moan as my secret crush in the school plunged his tongue deeper into me.

 

It lasted for well over a minute. The kiss became wet and sloppy after a while, as Izuku’s lips engulfed mine, and our saliva mixed together. When he finally pulled away, he grinned at me and ran his thumb across my bottom lip.

 

“Get on your knees, Tenya” he whispered, and I gawped down to find his trunks draped across his bare feet, and his perfect cock in his hand.

 

I had seen him in the locker room; Izuku definitely seemed to be a mix between a "shower" and a "grower." Kirishima had joked that Izuku might be one of the smallest in the class, but he was bigger where it counted. I had never seen him erect.

 

It was huge, but that was fine by me.  Undoubtedly bigger than my respectable 7 inches, more than 9 inches of thick, long flesh. His plump cock head was already glistening, and I could make out the faint scar where he’d been cut. His rod was already hard, and sticking out from a bush of dark green pubic hair.

 

I didn’t even have to think about it. I was on my knees in seconds, and could smell the fresh scent of sweat from his bare groin. My mouth began to salivate instantly.

 

Izuku took me by the back of the head and pulled me closer to his junk. I inhaled more of him, and watched with excitement as he guided his cock toward my face.

 

“Suck it Tenya” he whispered, and rubbed his slippery helmet across my lips, coating them in his salty juices.

 

My whole body shook as I tasted him. I opened my mouth wide, still unsure if this was really happening, and felt his glans slide across my tongue. He let out a sharp breath as my lips closed around his shaft, and just like that, I was sucking Izuku’s cock.

 

I had practiced my blowjob skills very diligently with a dildo; the fact that I took it all so seriously was now paying off. It was the perfect size for my throat. He pumped himself deeper into me, and even when my nose was buried in his pubes, I could still breathe without choking.

 

I wanted it to last forever. The feeling of his rod dripping pre-cum into the back of my throat made my own cock leak. I swallowed him down, and ran my tongue along the underside of his pole as he shivered and gasped.

 

“Good” he mumbled, stroking my dark blue hair as he thrust lazily, “real good”.

 

It was good. Far better, in fact, that sniffing his underwear. Why hadn’t I just asked for this in the first place? The thought made me smile onto his wet meat, but I continued sucking him as best I could.

 

I felt his heavy balls press against my wet chin with each stroke. He held me with two hands now, gently yet firmly, as he slid his cock in and out of my mouth. I looked up at him, and he looked down at me, and for a moment, we simply stared at each other as he impaled me.

 

I’d never felt arousal like it before. There was something so soft, yet so rugged about Izuku. We were the same age, yet he had an authority about him that made me want to submit to him.

 

He sped up. His strokes became quicker and harsher, making me gag as he fucked my throat. His hips jerked forward, keeping his cock buried inside me as he grunted, and for a moment, I was certain that he’d cum directly into my stomach.

 

“Take off your trunks” he said, pulling himself out of me, “take them off and bend over the bench”.

 

My eyes widened. Was Izuku suggesting that I let him fuck me? I’d never been fucked before, and truthfully, I had imagined my first time being somewhere more romantic than a sweaty high school locker room. I let his cock fall out of my mouth and gawped at him, but he simply waited.

 

How could I turn him down? After everything, I wasn’t exactly in a position to turn him down, and now that I thought about it, did I even want to? I’d been fantasising about this for months now, and so I stood up, gulped hard, and slowly lowered my trunks.

 

His eyes studied every inch of my body as I exposed myself to him. I’d always been quite modest, but I had nothing to hide behind now, as my trunks fell to my ankles, and Izuku smiled.

 

“I’m gonna fuck you, Tenya” he whispered, and kissed me softly, “I’m gonna fuck you so hard”.

 

He twisted me around by my naked shoulders, and guided me toward the bench. My heart felt as though it would explode at any second, and when he bent me over and pulled my ass cheeks apart, it almost did.

 

“Such a hot ass” he mumbled to himself, and I shivered as his finger slid across my opening.

 

I kept myself steady as Izuku spat onto his hand and began to massage it into his hard cock. This was it. This was the moment that I had been waiting for. I prepared my mind and body for what was to come, and gasped as his finger slipped inside me.

 

“You like that?” He asked, as I purred, “yeah? You like that, Tenya?”

 

“Y… Yes!” I managed, as he massaged my prostate and caused my balls to swell.

 

“You’re gonna like this even more” he breathed, and I felt his wet cock head slide up and down my exposed asshole.

 

I squeezed the wooden bench as Izuku grasped my hips and began to feed his cock into me. I waited for the pain of it, but Izuku worked slowly, pulling my hole open and gently easing himself deeper and deeper into me.

 

“Oh fuck” I moaned, as his cock rubbed against my prostate, but Izuku continued until I felt his balls against me.

 

“I’m in” he whispered, stroking his fingers down my spine, “and now I’m gonna fuck your brains out”.

 

The words had barely left his mouth when he pulled most of his cock from my hole and slammed it back inside. I gasped and whimpered as my body exploded with pleasure, and suddenly, I was being drilled by the man of my dreams.

 

The sound of flesh on flesh echoed through the empty locker room. His balls slapped off my ass and his pole spread me wide as he rammed me, and each thrust sent darts of electric pleasure through every inch of my naked, sweating body.

 

Izuku’s grunting became more laboured as he ploughed me. His fingers dug into my hips, and his thrusts turned violent as I moaned and gasped.

 

“You like this, huh?” He snarled, slamming deep, “you like being on my cock, Tenya, isn’t that right?”

 

“Yes!” I moaned, my eyes rolling backwards with pleasure, “I love it!”

 

“Yeah, fucking right you do!”

 

Much to my amazement, Izuku took it up a notch. I could see and feel the lightning that accompanied Izuku using his quirk, it felt like a jack hammer inside me, pulverising me as I leaked pre-cum onto the bench and then finally, with sweat dripping down both of us, Izuku let out a long, loud growl, and I knew it was happening.

 

His cock expanded inside me. I felt myself widen as his shaft bulged and his balls crawled upwards. He moaned out, squeezed me a little harder, and then stopped as a volcano of cum erupted deep into my bowels.

 

He began to fuck again, forcing every last drop into my aching hole. I was almost delirious now, barely able to comprehend what had just happened as he dumped the last of his load inside me, and then finally he pulled out, and I felt open and wet.

 

Izuku sat down next to me as I slumped forward, and rubbed the sweat from his forehead. He reached over, pulled open my ass again and chuckled to himself.

 

“All this time, you’ve been sneaking back here to sniff my boxers” he grinned, “when all you had to do was just ask”.

 

I could hardly breathe. I looked up at him and nodded.

 

“Well” he continued, and pushed some of his own cum back into my ass with his finger, “I guess there’s no need for all that anymore, not when you’re gonna be getting this cock as much as you want”.

 

I gawped at him as he stood up and looked back down at me with a smile.

 

“Or should I say, as much as I want, my boyfriend”.

 

Izuku strolled back to his locker completely naked, and I lay there, gasping for air and nursing an insatiable erection. He really was the most perfect man I’d ever met.