Mine is a bit of a long story... well, okay, maybe not. I used to go to a forum where I would role play a girl who was Sirius's daughter. (Yes, she was a Mary Sue.) Well, my user ID, ~Owls*Quidditch~, got disabled on those forums with no explanation. It tended to happen a lot; the moderators didn't explain much. So I just made a new user ID, and the moderators didn't care or anything. Next thing I knew, my friend who played Harry's sister had become Miss Prongs, and we had a girl asking to be Miss Moony (we said yes) and another who wanted in, so she was willing to be Miss Wormtail even if it meant being related to rat dung. (She wasn't actually his daughter - she was his third cousin or something.) So we were the "Miss Marauder Quatro" for a while. Then we all eventually left the forums, but we still keep in touch.