An older teen who had just signed up at the gym just walked in and passed the front desk. Ty saw him standing
by the counter and filling out forms, so he figured this was a new member. Then one of the trainers gave him
the gym tour and orientation while Ty was pedaling on one of the stationary bikes, so Ty saw the trainer lead
Sean through the weight room, showing him where all the machines were. Once the orientation was finished, Sean
started to sit on a bike and began pedaling on his own.
Ty decided to have some fun with the teen, who seemed to be just a few years older than him. A quick scan of
his mind revealed to Ty that Sean was a freshman in college and that he was 19 years old. He was just a few
inches taller than Ty, he was skinny and he wanted to join the gym in order to build some muscle.
As always, Ty decided to have some fun with the new gym member. The temptation was there to inflate his
muscles, but the fact that Sean was wearing Spandex shorts turned Ty's attention to Sean's groin. Since Sean
was on the bike that was only one bike over from where Ty was sitting, he had a pretty good view of Sean's
body.
Sean had just completed 5 minutes on the bike, according to the timer on the digital display, when he felt a
weird sensation in his groin. His cock began to grow! Trying hard to ignore it, Sean continued pedaling, while
his cock was growing slowly longer and thicker. Ty just glanced over from time to time as the bulge in Sean's
Spandex grew noticeably larger. His balls expanded a bit as well, and Sean started to become uncomfortable.
Finally, Ty caused the growth to stop, leaving Sean with a cock that was 4 inches longer than before, and with
balls as big as tennis balls. He was very well equipped!