American Dad: Season 8, Episode 6

8 - 6: Adventures in Hayleysitting

The Smith family's regular babysitter, Lindsay, breaks her leg in a soccer match. So Stan and Francine are forced to leave Steve with Hayley, despite her track record of being extremely irresponsible. When Hayley teases Steve about being a goody-two-shoes, Steve is determined to prove her wrong and sneaks out of the house to go to a party with the cool kids.