Season 5: Episode 110: Truth or Consequences
Vanessa shows up late for dinner several days in a row, and gives an excuse about working with a school committee. She claims that she needs to go over to Kara's house to help her study; but confesses to Theo that she has a date with her boyfriend, Jeremy. Vanessa asks Rudy to cover for her if she misses curfew. However, Clair sees through Rudy's lie and gets her to come clean. Vanessa becomes uncomfortable as she and Jeremy kiss in his car and asks to go home. However, Jeremy pressures her into staying by questioning her commitment to the relationship. Cliff and Clair wait up for Vanessa, and ground her for a month. Much to her horror, Cliff insists on calling Jeremy over to the house for a talk. Vanessa irritates her parents by repeatedly yelling down to Jeremy from her room. Clair explains her point of view to Jeremy, who apologizes for his behavior. Cliff then takes him into the kitchen to make sure that nothing happened with Vanessa. Jeremy assures him that they only kissed. Cliff gets Jeremy to realize that he would not defy his own parents, and thus was wrong to expect Vanessa to disobey the Huxtables.