When Valentine's Day approaches, Wendy suggests to her boyfriend Stan ways to try and spend time together. After their schoolteacher Mr. Garrison decides to get a rhinoplasty, he introduces their new substitute teacher, Ms. Ellen (voiced by Natasha Henstridge). The boys in class fall in love with her, including Stan, especially when she talks to him. This makes Wendy become incredibly jealous and she warns Ms. Ellen to stay away from Stan, oblivious to the fact that Ms. Ellen does not return Stan's affection. 