Jake eagerly took the offensive smelling jockstrap into the dressing room and locked the door. Fuck, he was hard as a steel pipe in his pants, as the smell of sweat and dirty balls wafted up from the yellowed, dirty fabric. Jake took another eager sniff and moaned as more precum leaked into his jeans. "What was wrong with him!?", he thought to himself as
Jake set the jockstrap down and quickly unbundled his jeans and pulled down his boxers, strings of precum smeared all over and some dribbled on the floor of the dressing room. Jake also shucked off his T shirt, having gotten smears of precum on that, too. Standing there naked, with a pounding erection, he grabbed the jockstrap and began to work it up his thin legs. He brought it up to his waist and worked his cock into the yellowed pouch. He let go as the waist band went into place around his crotch. Whoa! The pouch was huge! Whoever's jockstrap this was must have been hung like a horse! With balls to match, too! Even erect, the pouch was still way too big for Jake! He also noticed that he could smell the stench from the jockstrap, it was almost like it was coming out in waves. It stunk so bad it was making his eyes water!
That was when he felt his whole junk heat up, it felt like some warm force was massaging his erection and his balls. Not only that, a fierce itching sensation began to start as well. "Oh fuck..." he muttered allowed. He closed his eyes to the sensation and let it over take him. He felt the head of his erect penis press even harder against the fabric. His balls felt like they were a bit heavier. He opened his eyes and looked down and gasped; his erection was clearly an inch, or maybe even more, longer! The yellow fabric was for sure tented longer than it was before! Jake also noticed a faint line of brown hair leading up from the waist band up to his belly button! A happy trail, where previously he had had not even a wisp of hair! "What the fuck is going on?!", he thought to himself. He reached down and pulled the waistband back to look at his changing man hood, shuttering and moaning at the sensation of the fabric moving across his cock.
When he finally saw his manhood, he gasped. By now it was about 2 inches longer than it normally was, and noticeably thicker! There was a stringly line of precum beading at the tip of his cock, too! It was rock hard and throbbing. He even saw that his bush was so much thicker than before, and the curly hairs spread up into a trail heading up into a snail trail!
He stuck his hand down the jock and he could practically feel the thick pubes slowly sprouting out of his crotch, rubbing up and tickling against his hand. The thick hairs felt sweaty and a bit greasy, to his dismay. He reached a big further down, past his ever expanding and throbbing erection, and cupped his balls, gasping at the immense pleasure he felt. His balls, likewise, had grown significantly as well, and he could feel they were encased in a thick coating of wiry hairs now! He let go of his balls and experimentally sniffed his hand. He almost gagged at the thick musk, Oh god! His balls stunk now! Like old sweat and BO! He should have been disgusted his groin stunk so much, but it only seemed to make him hornier!
By now his dick was nearing about 10 inches long, and thick too! It was huge, and it looked to be growing ever so slightly bigger with each throb and pulse. Jeez, how big was it going to get?! Glancing down at the dirty fabric stretched to almost breaking point, he could see that his balls were almost the size of small tangerines as well. His pubes kept growing into a messy brown bush, with long kinky hairs peeking out from around the pouch! By now the thick musk and BO wafting off of his crotch was severe, he was going to have trouble hiding his terrible ball stench! The scent, however, made his dick even harder and a but more precum dribbled out.
The pressure built in his cock as it expanded one last time, ending his massive growth and leaving him with a 10 and a half inch long cock. Jake grunted deeply as his hips bucked forward. Jake helplessly humped the air as he shot the biggest load he had ever seen. He moaned as rope after rope shot out all over the walls of the dressing room. The orgasm ripped through him and he couldn't think or do anything but ride it out. After 7 or 8 thick ropes, the orgasm began to subside, and his massive hairy member slowly deflated.
Panting, Jake looked down at his soft tube of meat. It hung down a good 6 inches, drooling a steady line of cum on the floor. His bush was ridiculous and the stink was obnoxious. Jake gulped; he now had a massive, proper, jock cock. It was huge, hairy, and it stunk to high heaven. He had no idea what he was going to do with it! He pulled the nasty yellow jockstrap back up and shoved his new manhood into the pouch. The pouch was obscenely stuffed full of his meat, and it left nothing to the imagination.
Just than, he heard his mom call from outside the room! "Jake, are you in there? Come on, we need to go!", she called. Jake froze in fear. What was he going to do?! How was he going to hide this?!