Derrick and his own fraternity-brother-to-be are on a panty raid in the sorority house, until he finds however Derrick ' s coming up empty-handed. He hides when he hears someone coming, but her room is entered by Erin and grabs him. When he explains the situation to her, she gets the lowly pledge earn his stripes the hard way? She ' s wearing, By yanking the underwear. Derrick ends up finishing his assignment, and much more.