Ms. Choksondik says they should start teaching kindergarten students about sex education and Mr. Garrison spearheads those lessons in an overtly erotic way, much to Chef's outrage. Ms. Choksondik teaches the girls about pregnancy, which scares them even more than before when she shows them a detailed video of childbirth. The boys then buy the condoms and wear them at all times, not understanding how they work. Mr. Mackey tells them they are only worn during sexual intercourse. Angry that the girls misled them and thinking that the girls are the ones carrying diseases, they come to believe that they must get rid of the girls. The girls build a massive fort to keep the boys out. The boys tell them to leave town in a siege reminiscent of Mad Max 2, but the girls refuse and attack the boys (killing Kenny with a boomerang), which escalates into a battle. While preparing the lesson plan, Ms. Choksondik and Mr. Mackey become aroused by the sexual nature of their conversation, and admit to having sexual fantasies about each other. The two undress, and engage in unprotected sexual intercourse. Meanwhile, the battle draws the attention of the adults and the parents, who get angry at the children for the conflict. Ms. Choksondik apologizes to the girls for not telling them that an STD is transmitted through sexual intercourse, believing it had been implied when she first told them. Chef, however, states that the parents are to blame since they were so quick to let the schools handle sex education and leaving it in the hands of either someone with little experience (Mr. Mackey), someone with a negative view (Ms. Choksondik), or "a complete pervert" (Mr. Garrison, who's offended at being singled out) rather than teach it to their kids themselves. The episode ends with Cartman stimulating another dog as everyone looks on without any objection. Over the closing credits, Garrison can be heard still teaching kindergarteners different sexual positions. Ratings and censorship In Australia, the episode received an MA rating, due to strong sexual content throughout, and graphic violence near the end of the episode. Because of its content, this episode also aired at 9:00 at night instead of the program's usual 8:30 timeslot. The British satellite channel Sky One banned the episode for its strong sexual and violent content, even though it aired a TV trailer with scenes from the episode.