Without hesitation, Jeff slipped off his underwear and began to put on the jockstrap he had found on the floor. As he pulled it up, he felt a strange sensation in his body, as if something was changing within him. Suddenly, his body started to grow, and he felt an intense burning sensation in his chest.
He looked down and was shocked to see two thick, meaty pecs emerging from his chest. His arms started to grow thick wads of muscle, and his biceps flexed with every movement. His lats flared out on the sides, giving him that sexy v-shape he had always admired in the other guys in the locker room.
But the changes didn't stop there. As Jeff looked down, he saw that his abs had multiplied. He now had eight raised beautiful abs forming a perfect washboard.
Jeff felt invincible as he admired his new physique. He was bigger, stronger, and more muscular than he had ever thought possible. And yet, there was still more. He turned around and saw that he now had a beautiful bubble butt, perfectly round and toned.
Jeff could barely contain his excitement as he realized what had happened. He had become a muscle god, the kind of guy that everyone else in the locker room would admire and look up to.