Five high school seniors from East Great Falls High School in West Michigan are good friends: Jim Levenstein, an awkward and sexually naïve nerd whose dad, Noah, offers him pornography and unwanted sexual advice; Chris "Oz" Ostreicher, on the school lacrosse team; Kevin Myers, a virgin and somewhat nerdy leader of the group seeking to lose his virginity to his girlfriend Vicky; Paul Finch, a mochaccino-drinking sophisticate and nerd; and Steve Stifler, a popular but a raucous jock who often throws wild parties when his mother is away, and is the only one of the five who has lost his virginity. Dorky classmate Chuck Sherman claims that at a party hosted by Stifler he lost his virginity. Kevin prompts Oz, Finch, Jim, and Kevin to pledge to no longer be virgins by their high school graduation.