Flexibility Training - Bottom Cheerleader Yuji x Top Coach Reader
((A/N: Hi everyone!!! Finally back with a new fic, brought to you by the drive to make something nice for someone I care about 😎 Trigger warnings for this fic include manipulation, including potential gr**ming behavior, dubcon, lack of prep, and mild sadism! Reader is never referred to by gendered terms or pronouns, but they have a penis.))
As his coach, Yuji seemed to care about your opinion a lot. He seemed almost desperate for your approval, looking to you after every routine or stunt to see that little nod that meant he’d done well enough. You couldn’t help but enjoy how needy he was, honestly… he wanted to be the best, wanted to be special, and he seemed to think you were the best judge of that, so he clung to you for any little affirmation he needed. Sometimes, despite your better instinct, you found yourself using his desperation against him, withholding the praise he craved just to watch him squirm. Seeing him try harder and harder to earn your approval was a power rush that quickly became addictive… You found yourself wondering just how far Yuji would go to gain the praise he wanted so badly from you.
You didn’t often get the opportunity to spend time with Yuji alone, but you knew that for what you had planned, you couldn’t have other students around. That was a quick way to get into trouble with the school, and you didn’t feel like explaining to them why you were caught fucking a student. Instead, you found yourself working methodically, using your position as coach to your advantage to get Yuji alone in the gym, with nobody around to interfere. Practice was on Friday afternoons after school, and this Friday you saw a chance to get Yuji alone with you for as long as you could possibly need.
All through practice, you cast a critical eye toward Yuji, nitpicking his performance and criticizing him on every small mistake. Truthfully he was doing much better than any of the other cheerleaders on the team, but you knew that if you wanted to get him alone with you after school, he had to think he needed extra practice that nobody else on the team needed. When practice ended, poor Itadori looked more than a little dejected, and his usual energy had faded, giving way to a puzzled sadness. He looked at you with an almost wounded expression on his face as he stretched after practice, watching everyone else gather their water bottles and gym bags, filtering out of the gym slowly until you were the last two in the room.
Your plan was going perfectly, you could tell… too embarrassed to ask in front of all his teammates, Yuji was staying late to ask you in private what he was doing wrong in practice. You approached him as he sat on the ground, stretching his tense muscles, and he glanced up from his stretch when he noticed your shadow looming over him.
“Oh, coach! I was meaning to talk to you…” Yuji hesitated a little, brushing himself off and standing. “You were really hard on me in practice today. Am I really doing that badly?” He seemed distressed by the thought of disappointing you, and you crossed your arms, raising a brow as you looked down at him.
“I’m glad you stayed late. I want to work with you one on one for a while… your flexibility needs a lot of work, your muscles are just too tense to reach the poses they need to hit. Your pike fell short by a mile, and your high kick looked like it was about to rip your hamstring. Let me help you stretch the tension out.” You reached a hand out, running your palm down one of his arms to feel the tense muscles in his bicep. Yuji swallowed hard, seeming almost flustered by your touch.
“Ah.. I thought it might be something like that. Yeah, alright, I guess we’d better fix it if I’m too tense, huh?” He gave you an awkward smile, following as you led him toward the back room of the gym. It was mostly filled with weight machines, but there was a large mirror covering one wall, with a bar in front for the athletes to stretch at. You assisted Yuji in stretching for a while, leading him in some basic motions and trying to keep up the charade of a concerned coach. Then you pointed him toward the bar, motioning for him to set up for another stretch.
“Alright, Yuji, I want you to put one foot up on the bar and bend all the way forward to grip the bar with your hands.” You directed Yuji with an ease and tone of authority he couldn’t argue with, and he obeyed quickly, bending over in the vulnerable position you directed him to take. He looked good bent over like this, with only one leg keeping him stable on the ground. You approached, placing your hands on his hips and pushing down to stretch his hamstrings, and one hand reached around his thigh to brush against the spot where the muscle strained against the skin. “Feel that? This is where you should be focusing your stretches.” With your body pressed so close to his, your hips were nearly level with his ass, and you fought to keep a clear mind as you pushed him deeper into the stretch, enjoying the whimper of pain he released when the stretch pushed too far.
You were surprised, however, to find that when you glanced at the broad mirror in front of you, Yuji’s face was flushed, painted red with embarrassment. He looked away from you quickly when you glanced at his face, but you can tell he was staring at you before you looked. More surprisingly, when your eyes trail down the mirror, you can see a bulge starting to form in his thin spandex shorts. You let out a little laugh, derisive as you let your hand drift freely to grope at the erection straining against his uniform. “Wow, Yuji, I wouldn’t have expected this from you. Who knew my best athlete on the team was a little whore, huh?” You leaned in so you spoke directly into your ear, the warmth of your breath hitting his skin and eliciting a little shudder from the smaller man.
“Wait, we-.. We shouldn’t be doing this, you’re my teacher!” Yuji protested, trying to straighten up and move away from you, but going still again when he realized you had him trapped. He couldn’t get down from his position on the bar with you right behind him, holding him in place.
“Come on Yuji, don’t make this difficult… don’t you want to be a good boy for me?” A little smirk spread across your lips, and when he looked away in shame, you knew you had him right where you wanted him. A pathetic little whine slipped from Yuji’s lips, so unlike his usual voice you were surprised for a moment. It was thrilling getting to see someone so strong and composed fall apart under your hands, desperate for your touch no matter how much he wanted to deny it, and more than that, desperate for your approval. Even if he didn’t want this, you were sure he would have tolerated it anyways, if it meant gaining your praise and affection. The power you had over this man’s self-worth was intoxicating, and the knowledge that you could truly build him up or break him down any time you chose had you rock-hard in your pants.
“Shh.. stay quiet. You wouldn’t want anyone to hear what a slut you are, fucking your own coach.” You teased him with a cruel little smile on your face, your hands taking hold of his shorts at the waistband and tearing them as easily as if they were made of paper. They were thin shorts, so it wasn’t difficult to tear them from his body with your hands alone. The underwear followed soon after, made of a thicker material but still not too difficult to remove, and soon he was standing in front of you, wobbling a little to keep his balance at the bar. You could tell he was resisting the urge to pull away or hide, and you moved your lips to his neck, dropping warm kisses on his skin.
“You’re doing so well, sweetheart,” you murmured into Yuji’s ear, moving one hand from his hips to push your loose sweatpants down on your hips. You knew you should probably prepare him, but being rough sounded like much more fun, and you knew you would enjoy watching him wobble and struggle to walk normally in PE class on Monday. “You look so cute like this, all red-faced and needy.”
The praise had Itadori trembling, his pulse racing right below the skin as you freed your cock from your pants. When he saw the reflection in the mirror, Yuji let out an involuntary whine, a little afraid at the sight of your cock fully erect and ready. “Are you sure that’s going to fit?” He swallowed hard, looking back up to meet your eyes through the reflection of the mirror. You lifted your hand toward your mouth and spat in your palm, bringing it back down to stroke the saliva over the length of your dick. This was all the lube poor Yuji would get, and he seemed to know it too, because he was growing more nervous by the second.
“It’s going to fit, don’t worry. It will hurt at first, but I know you’ll be a good boy and take every inch for me. You want to make me proud, don’t you? I’ll be very proud of you if you can do this for me.” You coaxed Yuji gently, knowing without his response that he was going to do exactly what you asked. He wanted your praise and approval far too much to back out, even if he was terrified of your size and the lack of preparation. You used your free hand to position the head of your cock against Yuji’s tight hole, watching him tense nervously as you tugged him closer by the hips, You lifted your other hand from his hip, running it up his back slowly to rest on his shoulder, soothing even as you savored the fear in his expression.
“You’re doing so wonderful, Yuji… You look so good like this, all bent over for me. Take a deep breath baby, alright?” Though you made it seem like you were going to go slowly and walk him through the pain, the truth was you knew damn well he wasn’t ready yet when you thrust in, burying your entire cock inside him without any adjustment time, bottoming out with a groan. Yuji slapped a hand against his mouth to muffle a cry of pain, fighting to stay quiet even as you split his virgin hole open on your cock.
“Ohh fuck, you’re so tight, sweetheart. You’re so perfect, you’re doing amazing, baby.” Your voice was husky with pleasure, and your hands came down to grip his hips, leaving oval-shaped bruises where your fingers dug into the flesh as you began to move, slamming into his ass hard and fast, never giving him a moment to adjust or grow used to the feeling. He let out a pathetic little yelp with each thrust, a new stab of pain hitting him every time you buried your cock inside his ass. Still, the pain wasn’t enough to erase the pleasure that grew inside him as your tip slammed against his prostate with every thrust, abusing the sensitive spot until tears were running down his face, not out of pain but out of pleasure.
His expression was too beautiful to leave in the moment, and your thrusts slowed for a moment as you dug into the pocket of your sweats, snapping a picture of his expression in the mirror as you destroyed his tight ass, his one stable leg wobbling as he struggled to stay standing. You tucked your phone back in your pocket once you were satisfied with the pictures, watching as Yuji tightened around you almost spastically, driving you closer and closer to climax. He couldn’t even find the words to warn you before he was overwhelmed by the pleasure of orgasm, his cum hitting the mirror in front of him as he tightened around your cock almost hard enough to hurt.
The tightening of Itadori’s insides was enough to drive you over the edge, burying your cock deep inside one last time and filling his guts with your cum, watching him tremble as he tried to stand steady. You finally pulled out slowly, and as soon as your hands were off his hips, releasing their support, he sunk to his knees on the floor, too exhausted to hold himself up. You nudged him with your foot, urging him to turn toward you, then ran a hand through his strawberry-colored hair, tugging it as you pulled his head closer to your cock, still half-hard and slick with the remains of your climax.
“Be a good little whore and suck me clean, alright baby?” You murmured, your head practically spinning with the excitement of having him on his knees like this, desperate enough for your approval to suck a cock that just came out of his ass. He didn’t even question it, though you could tell he was embarrassed by the order as he leaned forward and took you into his mouth, sucking the slick cum off your length, his tongue lapping the last bead of cum from your tip. You couldn’t resist the urge to embarrass him further, and you shoved his head down further without warning, watching him gag at the sudden invasion of his throat, then released his head and let him pull away, a cruel satisfaction eliciting a smile as you watched him cough.
“That was perfect, baby. You were so good, taking it like the pretty little whore you are. I’m so proud of you for doing it without being loud and getting us caught.” You leaned down, lifting his chin and pressing a kiss to his forehead, then putting your cock away in your boxers and pulling your sweatpants back up. “Now let’s get you showered off, okay?”
Yuji nodded shakily, and despite the humiliation of being choked on your cock and the pain of his asshole still gaping and raw from being ravaged so mercilessly, all he could seem to feel was joy. You were proud of him! The look of joy and awe in his eyes as you helped him up and led him toward the showers was enough to tell you that you would have no difficulty getting your poor little whore alone again. Hell, give it a week, and a few little insults, and he would be crawling on his knees begging to make you proud again.