Enjoyed a story. Involved penis size stealing and Girls with dicks.

[thisisshsas]

A while back I read a story that I enjoyed. It was about a girl who is cursed with the ability that whenever she touches someone with a penis she steals some of their size. She discovers this ability when she loses her virginity ( poor guy) and is roommates with a girl who also has a penis. There is also a scene where she is cornered by some guys who want to rape her but it ends up that they are the ones who lose out.

If anyone can remember the name for this story please post. I've tried searching and nothing has come up.