You should have known you'd get caught spying on your step-sister - even if you are the size of a tiny bug. Now she's going to sit on you while she gets ready to go to the beach with her friends. She knows you'll be jealous of all the regular sized guys fawning over her, so she teases you with that fact as she bounces her big butt on your little body. Losers like you should be punished, and your mean step-sister is going to make sure you learn your lesson.