A new story from Kaitlyn Andrews, the biggest erotica fangirl on the planet!

Mark Aster, the eighteen year old sprinting prodigy, might seem to have it all. An ace record with more medals than most racing clubs can count, a chance of getting into the upcoming Olympic games and a hot girlfriend too. But life isn't that simple for the handsome young man. His times on the track have been slipping ever since he started dating his new girlfriend. His rival, Steve Wong, is gunning for his position at the head of the track team. And the Olympics are dangerously close...

So, when Coach Guerra, his long-time mentor and idol, offers him a special pill that will improve his body, Mark takes it without a second thought. After all, Mark would do anything to achieve his dream.

But the pill does more than improve his time on the track. Mark wakes up with a pair of boobs and a curious lack of a penis between his legs... He's become a girl! Now, Mark needs to figure out how to turn back into a guy before her... Er, his girlfriend notices. And is it just his imagination, or is his rival looking more and more attractive by the day? And her overbearing coach is seeming sexier as well...

Only one thing is for sure; Mark's body isn't the only thing that's changing...