Rainbow Dash's "Audition"

Dash is given a notice saying she's getting into the wonderbolts! When she arrives however, it turns out to be much, much different.

Rainbow Dash is given a notice from a pony saying she's gotten into the Wonderbolts, and has a secret audition! It turns out, however, that a group of stallions have decided it was an easy way to trick her into being their little pet.

Warning.
Contains rape!