Although David Wagner (Maguire) and his sister Jennifer (Reese Witherspoon) are twins, they lead dramatically different high school social lives. Jennifer is concerned mainly with her appearance, relationships and popularity, while David has few friends and cannot even drum up the courage to talk to a girl on whom he has a crush. He spends most of his spare time on the couch, watching television. Jennifer, on the other hand, is very aggressive (as well as sexually promiscuous) and at the beginning of the film makes a date with Mark Davis, one of the most popular boys in school.