Katie then feels a rumbling in her stomach and she farts loudly. Tiff then rushes into the room and looks at her obese friend.
"Man Katie, you really stink!"
"I can't help it! BURRRPPPPP!" Katie says, belching loudly. She farted again and started crying. Suddendly she feels a stirring above her butt. Tiff points at her ass, wide eyed in terror.
"Katie, you have a tail!"
What tail does Katie have?