chunk: Brad's sister Stacy (Jennifer Jason Leigh) is a 15-year-old sophomore and also a virgin. Stacy works at a pizza parlor at the mall alongside her outspoken friend, popular and sexually active Linda (Phoebe Cates). One night at work, Stacy takes an order from Ron Johnson, a 26-year-old stereo salesman who asks her out after she tells him she's nineteen. She then sneaks out to meet him and they have sex in a dugout at a softball field. Stacy never hears from Ron again, revealing the loss of her virginity to Linda.