Young Girls Do

High school student Mary Ann Rogers can't wait to go to college. One night, she invites her girlfriends to a slumber party where, just for fun, she dresses up as a tougher version of Fonz from "Happy Days" and orders the girls to strip naked for her. Things quickly get out of hand, however, when Mary becomes so caught up in the role that she actually proceeds to dominate and go down on one of her pretty girlfriends (Lonna Emerson) while others watch in shock. They eventually start to protest in disgust, so Mary stops, even though she does not fully understand what she did wrong since her friend, at least at first, seemed to be enjoying the lesbian attention a lot. The next day, her physical education teacher, Lily Provo, who is clearly attracted to somewhat oblivious Mary, invites her to her office and tells her how sorry she is to see her go for college. She also mentions that she has heard how well Mary can do a Fonz impression. The two bond and end up making love on Lily's desk. After graduation, Mary takes a plane ride to where her college is located and in the process becomes a member of the Mile High Club as she has sex in the plane's toilet with a handsome passenger (uncredited Jon Martin), who seduces her using only his sweet talking skills and a bottle of champagne. Once in college, Mary befriends the cute, friendly and daring tomboy Erica Thompson who works in her spare time as an exotic dancer at a local nightclub, but neither she nor her dancing partner (Phaedra) take their underwear off on stage. She also secretly shoots steamy lesbian BDSM videos for special clients with her gorgeous "slave" Norma Jean. Mary soon finds a boyfriend on campus, a tennis player named Rick. However, when she catches him with another man and he comes out as bisexual, she becomes highly homophobic and aggravated, and breaks off with him. Erica, however, finds the whole ordeal to be utterly amusing and intriguing to the point that she decides to disguise herself as a gay man in an attempt to learn how it is to have sex with a gay man. She goes cruising, picks up an unsuspecting gay guy (Billy Dee) and tricks him into having "gay" anal sex with her. Finally, Mary's female Asian roommate asks her about sex, so she takes her to a Hawaiian-themed party where the two girls proceed to have group sex with five fratty surfer dudes, including their "leader" Fred. The film ends with Mary acing an exam as the film's rock theme song plays over the end credits.