PINKIE, THE PONY WHO JUMPS WHEN SHE WALKS...
Pinkie. Everypony knows her. If you didn't then you were a loser, Like Cheese Sandwich. (It's a joke. Deal with it fangirls).
After ponies realised Princess Molestia never knew Pinkie Pie they threw her off the throne although she's a granny to Granny Smith and Luna ruled.
Back to Pinkie...According to Brony wiki Pinkie gets drunk daily and fucks Big Mac from time to time. RATED T FOR TEENS BECAUSE THIS IS A CRACK FIC.