Rainbow dash and her friends see a comet fly out of the sky. Rainbow dash is closest to the comet and investigates. When she finds out that the comet is a filly, or other wise known as someone she is close to, she reacts quickly and takes the filly in without telling her friends. Now Rainbow dash is going to have to keep this big secret from everypony!(including Pinkie Pie!) She also has to keep the little filly from being found out or at least pretend she doesn't know the filly.
Boy, this is going to be a long ride.

Maybe I'll continue. It depends on how many views, likes, and dislikes this gets. For now I'll put it on hiatus.