Jeff felt little funnyier but it than became a strong tingling sensation. It surged though his body and he smiled as god sized muscle sprouted from all of his body. He was getting bigger and bigger untill finaly he stoud 6`5 with cut rock solid muscles no one could belive. Jeff looked down to see he filled the jock strap and his cock wass a foot long just hung! He pulled down the strap and see if he would shrink. He smiled in dilght as he didn`t:) He tryed out his new body and loved how massave he hed become. But whaat will he tell his parents, he found a magical jock strap the turned him into a muscle god? But for now jeff continued exploring his new body. But as soon as he turned around he saw Mike, mouth open and sock solid dick staring at him.