Jeff stood in front of the mirror, admiring his new body. He couldn't believe what had happened. The jockstrap he had found on the locker room floor had transformed him into a muscle god. He was bigger, stronger, and more toned than he ever thought possible.
His chest bulged with thick, meaty pecs, his arms rippled with bulging biceps, and his abs formed a perfect washboard. But it was his lower body that really took his breath away. Jeff now had a perfectly round, juicy bubble butt that looked almost exactly like the school's star quarterback's, Zach Benton. Only better, he thought.
As he ran his hands over his new muscles, Jeff felt a pang in his crotch. He looked down and saw that the jockstrap was struggling to cover a massive bulge in his groin. He could feel something big down there. Jesus, he thought, what did this jockstrap do to me?
After a moment of hesitation, Jeff reached down and ripped off the jock. Out flopped a massive, thick cock that lay on top of two extra-large balls. The cock swung and dangled between Jeff's new meaty thighs. It fell almost halfway down his thigh, and Jeff could feel its weight as he turned his hips side to side, feeling the cock swing back and forth.
Without really thinking, Jeff began to stroke himself, reveling in the intense pleasure he was feeling. His new body was so sensitive, every touch sent shivers down his spine. He couldn't help but moan as he continued to stroke his cock, watching as it grew harder and thicker with every stroke of his big hands.
He sat down on one of locker room benches, feeling his bare ass press against the cold bench where so many other of the school jocks had sat while changing before and after gym class.
Just then, the door to the bathrooms swung open. In walked Mike. Jeff froze, unsure of what to do. He had never been caught jerking off before, and his hand was still on his thick, rock-hard cock, which reached up past his new washboard abs and was beginning to leak precum down its thick shaft.
Mike's eyes widened as he took in Jeff's new physique. He was shocked at the transformation he saw before him. "Holy shit," he exclaimed. "What the fuck is going on here?"
Jeff began to stammer. "Mike -- it's me, Jeff! I - I found this jockstrap on the floor, and it transformed me into this," he said, flexing his bulging biceps for emphasis.
Mike seemed to freeze. His eyes wandering over Jeff's new body, taking in the thick, meaty pecs, bulging biceps, and chiseled abs. His eye lingered on Jeff's massive cock, still standing at attention before him. He couldn't believe what he what his teammate had become.
"Dude," Mike said .....