Running Back

My dormmate was the star running back on the team. At least, he was going to be from the way I heard Coach made him train. He would always come right back from practice, still sweating, crashing into his bed to recover. That was when I'd hear him complain of the sprints he was forced to do during practice, the exercise he was put through that left his ass and legs numb. He claimed he would never run again, too sore to do anything. At least, until he came back from the next practice.

It started slowly at first, but as the season progressed, I noticed his rear beginning to change. Each week his ass grew noticeably bigger. His underwear was soon skin tight against the giant trunks that were his legs, its seams cutting into his soft flesh. His briefs began struggling to stay up around his giant peach, his crack now constantly visible above the band. Now whenever he crashed into bed his cheeks shook for a good few seconds after, raised at least an inch above the rest of his body, pumped up heavy with blood from his workout.

I couldn't help but be drawn to the sight of his shaking, round rear end. I wanted to touch and explore every inch of it, but I didn't dare make a move. At least until one day, when he fell onto his bed as usual, moaning about how sore his legs were. He claimed he needed a massage, anything to relieve the torment his coach put him through.

I couldn't resist any longer. I went over to him and gently pulled his tight briefs downwards, revealing his wide, soft cheeks. I watched as his flesh popped out of the fabric, squeezed between the elastic and exposing itself to me. I couldn't stop from dragging my tongue onto it. He gasped in surprise as he felt my wet organ working toward his hole, his body shivering to the touch. His peach shook like jello as I reached his spot.

I had him moaning in no time, toying with his spot and distracting him from his fatigue. My hands kneaded the soft dough around his ass. I almost enjoyed it as much as he did. He was a good bottom as I gave him the same treatment each week, gradually working his hole looser and looser. He was more than willing, craving my touch, immediately pulling down his briefs every time he fell into his bed. It wasn't long until he was ready to take my cock.

His hole let me in almost immediately the first time, having been trained to open up by my tongue. My member would split his cheeks apart, his fat bottom easily wrapping around my shaft in a warm embrace. He couldn't stop himself from coming almost immediately, his thick muscles leading my rod directly to his spot. From that night on he needed my cock constantly inside him. I loved watching his fat ass jiggle as I pounded into him, feeling his rear's tight grip on me in each thrust. He couldn't get enough of it, always returning from practice begging for relief. It wasn't long before I had to make sure he kept training in the offseason, ensuring he'd be bringing me back a jucier ass than before. I had him under my grip, and he couldn't have been happier.