Degrassi Junior High (1987)

S3E3 A Big Girl Now

Lucy finds herself spending all her time with her boyfriend, Paul, causing her to drift away from her friends. When her parents head out for the weekend, she decides to host a sleepover with her friends. However, Paul convinces her to turn it into a party exclusively for high-school students, urging her not to include her friends. At the gathering, he pressures Lucy into having sex, but she declines, prompting him to leave. The next day at school, Lucy's friends confront her about being left out, and L.D. reveals that Paul boasted to everyone about having slept with her at the party.