Bending Eli
Copyright© 2025 by Broken Boundaries Gay Erotica
Chapter 16: Core Tension
Erotica Sex Story: Chapter 16: Core Tension - I'm Eli, an 18 year old university freshman. I join the school's gymnastics team in search of something new but find myself caught in a world of lust, dominance and kink that I never expected when I become entangled with my sexy Assistant Coach, Casper, all while hiding things from my equally sexy, straight, roommate, Mason.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Ma Ma Consensual Gay School Sports DomSub MaleDom Humiliation Rough Anal Sex Analingus Exhibitionism First Masturbation Oral Sex
When I got back to the dorm, Mason still hadn’t returned. He must have really had a good time with that girl.
I wasn’t angry about the privacy. After what had just happened with Casper in the gym, I was already frothing at the mouth ... well somewhere else, and I needed release again.
Fully aware of Mason’s penchant for barging in on me mid-stroke, I decided I’d give myself some insurance this time. I grabbed the sneakers I’d worn to the gym and put them both by the door’s edge. That way, when the door opened, it’d collide with my shoes, slowing it down to give me some time to hide what I was up to if Mason interrupted things again.
It wasn’t an amazing plan, but I figured it would give me the extra few seconds I’d need to spare myself more embarrassment. I briefly considered removing the shoes when I remembered what Mason walking in on me had led to but Mason’s failure to remember our encounter — real or feigned — had me too confused.
I stripped out of my gym clothes and headed over to my bed, eager to get to business. I knew I might not have long so the second my back hit the sheets, my hand was on my cock.
The instant my hand closed around my cock, it was like flipping a switch. All the heat I’d been carrying since the gym hit at once, sharp and low in my gut. I stroked slow at first, keeping my grip steady, feeling every inch like I had all the time in the world. My skin was still a little damp from training, the faint bite of sweat sticking in the air, but that wasn’t what had me hard.
It was Casper. Him standing over me, calm as hell, his cock filling my mouth, both hands braced on my head. That weight. That stretch. My jaw aching while I fought to breathe through my nose, holding as still as I could. I could feel it now, like it was happening all over again. The drag of him across my tongue, the press of his hips until my throat locked up.
Loosen your core, Eli.
My stomach tightened at that. I hadn’t known if he meant it as a joke or if he was serious, but it didn’t matter anymore. My hand kept moving, slow but firm, working my cock from base to tip. I could feel my thighs flexing, legs pressing down into the bed like I was holding position for him. Like he was standing right behind me, watching.
His voice wasn’t loud in my head. It never was. Just steady. Low. The way it had been the whole time I’d knelt for him. His fingers had slid down while he moved, thumb brushing the back of my neck, the other hand tightening around my hair when I got too eager.
Good boy. Take it slow.
My hips twitched up against my hand. I squeezed a little harder, chasing the feeling without pushing too fast. I didn’t want to cum yet. I wasn’t there. I needed to hold it, to feel it longer. That stretch in my throat, the way my eyes had watered while I worked to keep breathing, swallowing around him until I could feel it all the way down. Like he was filling my whole body from the inside out.
I shifted on the bed, back arching slightly, legs locked tight. My free hand grabbed the edge of the sheet, knuckles pale. I wasn’t thinking about anything else. Not Mason. Not the dorm. Just Casper. His cock stretching my throat, his hands holding me in place, his voice dropping even quieter when I really started to lose it.
Relax into it. We’ll loosen you up more tomorrow.
The memory hit so sharp I had to pause, hand tightening at the base of my shaft, keeping everything right at the edge. My breath came in slow, uneven pulls through my nose. I could feel how close I was already, my body trembling with it, thighs shaking like I’d just finished another round of drills. But I held still.
I kept stroking, slow at first, then faster again. My hand was slick now, the head of my cock flushed and aching, every pulse sharp. I wasn’t even trying to hold back anymore. My hips rocked up off the bed, legs tense, toes curling into the sheets. The whole room felt hot and tight, like it had shrunk down to just me and the air in my lungs. And him.
Casper.
I could still feel it. His cock in my throat. That final moment when his grip had tightened, both hands locked around my head, pulling me in until there was no space left. The thick rush of it hitting my tongue, filling my mouth in hard, sharp pulses. No warning. No words. Just the weight of it, hot and salty, flooding my throat until I didn’t have a choice. I’d swallowed without thinking, throat working while my eyes burned, face hot, chest tight.
My breath caught, chest pulling tight as my hand sped up, strokes rough now. My thighs clenched. My stomach locked. I could feel it building sharp and low, pulling tighter with every flick of my wrist.
Good boy.
The words echoed like he was right there.
But it was the comment about loosening my core...
That did it. My hips jerked up hard, body snapping tight as I came fast, hot streaks spilling across my stomach in sharp, messy pulses. My hand didn’t stop right away. I kept stroking through it, eyes shut tight, mouth open like I was still trying to breathe around him. Every nerve lit up. My whole body shook. By the time it faded, my arm dropped heavy to my side, heart hammering in my chest.
I lay there, breath slowing, skin flushed and damp. My cock twitched against my stomach, the air cool now where cum streaked across my skin. But my head was still full of him. Casper’s hands. Casper’s voice. That last look he’d given me as I wiped my mouth, chest still heaving, trying to pull myself together while he just watched like it was no big deal.
We’ll loosen you up more tomorrow.
My stomach twisted. I wiped my hand off on the sheet, forcing myself to sit up, but my body was still humming like it wasn’t finished. Like there was more coming, whether I was ready for it or not.
I was so spun up between Mason and Casper I felt like I was on the edge of some precipice that I was about to fall off of ... or maybe at the base of a mountain I was just beginning to climb. It didn’t know where I was headed with either of these boys — men — but I knew my body and my brain wanted me to follow them wherever they led.
The shoes had been unnecessary. Mason didn’t surface back at the dorm until long past noon. As usual, he gave me all of the gory details of his night (and morning) with the girl from Bumble and I sat there, eating up every word.
Mason didn’t mention the other night, he didn’t give any indication that anything had changed between us or that he remembered anything at all. I decided to let it go for the time being and just resume our normal roommate routine. Bros, teammates, nothing more.
Something kept gnawing at the back of my mind though.
In his drunken state, Mason had confessed that he’d followed me to the gym in the morning. He told me that he’d watched Casper and I. Even if he forgot what we’d done last night, there was no way he forgot what he saw Casper and I do. The only question was whether he remembered that he’d told me. Either way, he knew what I was doing for Casper at the gym in the mornings.
He wasn’t saying anything about that either.
Could Mason be embarrassed? Embarrassed about spying on his roommate and his coach in a super private moment? Maybe even about what happened between us that night too? I mean, the very next thing he did was to spend an entire evening at some random chick’s place. Was that his way of recovering?
As the day wound on, I resigned myself to the fact that those questions would probably go unanswered. In the meantime, I had tomorrow to look forward to and everything I imagined it was going to bring.
Well, I didn’t have to wait much longer to find out.
I went to dinner with Mason. Radio silence on how he’d stumbled in drunk two nights prior and insisted on oral sex from me. Oral sex that I’d given him willingly and hoped he’d want again. No mention of his voyeuristic activities in the gym either. Just normal Mason. Easy, casual, a man amongst men.
After we finished eating, he caught up with some friends who were also on their way out of the cafeteria, and I went back to our room to do some studying. I figured I needed something to distract me from everything else that was going on in my head and organic chemistry seemed as good as anything else.
The studying worked because it seemed like no time had passed before Mason was back, ready to sleep. That was my first sign that I’d been studying for a solid four hours. I finished up the chapter I was working on and set the books aside. Tomorrow couldn’t come fast enough.
I woke early, my body already humming like it knew something big was waiting. After yesterday, I rushed to the gym like I was a kid on his way to open Christmas morning presents. The hallways were quiet, my steps echoing off the tile floors. By the time I reached the gym doors, my pulse was pounding, my cock already half-hard, pressing insistently against my shorts.
Inside, Casper stood alone in the center of the mats, his expression calm and unreadable. The moment he saw me, a small smile curved his mouth. “Good. You’re here,” he said simply, nodding toward the mat. “Lose the clothes, Eli.”
I didn’t hesitate. In seconds, my shorts and shirt were in a pile at the edge of the mats. My skin prickled in the cool morning air, cock twitching eagerly against my thigh. Casper watched without comment as he stripped down too, his movements smooth and unhurried, revealing every tight, hard line of his body.
“Hands and knees,” he instructed, his voice low and steady.
I dropped to the floor, feeling his eyes trace over me as I got into position. He circled me slowly, studying every angle like he was analyzing my form. “Too stiff,” he murmured, placing a hand lightly on my lower back. “We’ve talked about this. You carry too much tension here.”
His hands guided me into a series of gymnastics positions, one after another. Each pose kept me on all fours, ass raised, fully exposed. He corrected every small mistake—hips too high, back not arched enough, core locked tight. I trembled slightly under his constant, assessing touch, nerves firing with anticipation.
“Relax,” Casper whispered, hands firm as he adjusted my hips again. “You’re fighting me. You need to let go.”
I exhaled, trying to follow his instruction. It was impossible to ignore my cock, fully hard now and bobbing against my stomach, but Casper didn’t seem to notice or care. He was focused on my muscles, my form, the tightness he felt beneath his fingertips.
Then, without warning, his voice went quiet. The gymnastics instructions stopped abruptly, replaced by silence and the soft sounds of his breathing. I felt his hands settle firmly on my hips, holding me steady, fingers pressing into my skin.
My breath caught sharply as he shifted behind me. The cool air hit my hole, sensitive and exposed, making me tense up again. Casper’s voice was low, almost amused, as he said, “And here it is. The real source of your tension.”
Before I could process what he meant, I heard him spit. His saliva landed directly on my hole, hot and wet, sliding down slowly. I gasped at the sensation, heat flaring in my chest. His finger pressed gently, testing, then pushed carefully inside. My whole body trembled, hips pressing back instinctively.
Casper chuckled softly, his voice warm and confident. “We’re going to loosen you up, Eli. This needs to loosen up for you to loosen up, don’t you agree?”
My cock throbbed at his words, and I moaned in a way that sounded way too slutty before I realized what I’d done, already lost to the feeling of his finger sliding deeper inside me.
“Yeah,” I added, as if the moan hadn’t given away everything I was thinking.
Casper’s finger pressed deeper, slow and steady, sliding past the initial tightness until my body gave way. The stretch was sharper than I expected. Not painful exactly, but impossible to ignore. I sucked in a breath, thighs shaking slightly as I held still under his hands.
“Good,” Casper murmured, voice calm, like this was just another drill. “Tight. Too tight.”
I felt him spit again, another warm splash over my hole. His finger withdrew slightly, then pushed back in, working me open in slow, measured strokes. Each time he pulled back and pressed in again, the tension in my gut unwound a little more. I couldn’t help it. A quiet sound escaped my throat—a low, shaky moan that I barely recognized as mine.
“You feel that?” he asked, still steady, still calm. “This is the part that’s been holding you back.”
I swallowed hard, my face burning hot. “Y-yeah,” I managed, voice breaking. “I ... I feel it.”
Casper chuckled under his breath, low and warm. His other hand slid across my lower back, fingers resting lightly, keeping me steady as he worked his finger deeper again. “It’s the core, Eli. Everything starts here. You’re locked up inside. We’ll fix that.”
I shuddered as he pulled his finger out. For a second I thought he was finished, but then he spat again, more this time, slick and wet across the same spot. He started to probe me again. This time there were two fingers. The stretch made me gasp, hips rocking forward on instinct, but he kept me steady with his hand at my back.
“Relax,” he said again, quieter now. “Let it happen.”
His fingers slid deeper, twisting slowly, exploring. I could feel everything. Every ridge, every push, the heat of his skin against mine. My cock ached so hard it hurt, untouched, pulsing with each small movement. It felt like I was falling forward, like my whole body was chasing the rhythm of his hand.
A moan slipped out again before I could stop it. Embarrassing, sharp and raw. Casper didn’t say anything for a moment. He just kept working my hole open, adding more spit, fingers twisting and stroking with slow precision.
Then I heard him laugh quietly to himself, low and knowing. “You hear yourself right now?”
My face burned. “Sorry—” I started, but he cut me off.
“Don’t apologize,” Casper said, voice still smooth. “That’s the sound you make when you’re in need.”
He kept going until my breath was shaky and uneven, until I felt loose around his fingers, the tension finally giving way. Then, just as suddenly as it started, his hand withdrew. His fingers slipped out, leaving me empty and trembling.
I let out a shaky breath, heart racing. Before I could turn my head or ask what came next, I felt it. The blunt heat of his cock, pressing up against my hole in place of his fingers. No warning, no shift in tone. Just Casper, steady as ever, ready to take it further.