Just then, another member of the basketball player waltzed into the locker room. He was skinny, but tall, and he had just the right amount of muscle tone to be hot. He slipped into a locker row and began to undress. Ty and Dustin followed to watch
The boy, who's name was Luke, pulled down his shorts to reveal just his briefs. His already large cock and balls were straining his underwear at 6 inches soft. Suddenly as Ty and Dustin began to watch his underwear grey tighter. His balls began to swell, pressing the fabric out further. He smiled at the sight, thinking he was just getting horny. Then he noticed his nuts getting bigger and bigger. It looked like he had stuffed tennis balls in his underwear... no, softballs now. One ball was even beginning to fall out. Then, his shaft began to get fatter and longer, coiling around on itself as it stretched his underwear to its limit. He moaned loudly. It slowed and eventually stopped, and when he looked down, his underwear was completely full of of Luke's new massive 16 inch softie.
Pulling down his underwear to let the beast free, Luke was surprised to feel another tingle. Again his cock began to expand, growing longer and longer until Luke's 26 inch cock was hanging down past his knees! Luke's balls had also grown to the size of small melons. Ecstatic at his new size, Luke pulled up his shorts and waddled away with his new massive bulge.