Sex in film pursuing. In horror films, sex is often used to "mark" characters that are doomed to die. Characters that engage in sex acts are often the first to be claimed by the antagonist(s), or will die shortly after their sex scene or (sometimes) in the middle of it. This convention of it being bad luck to have sex in a horror film is notably illustrated in the "Friday the 13th" film series, where supernatural villain Jason Voorhees takes a special dislike to teenagers and young adults having sex because, as a young boy, he drowned in a lake while the camp
Jason Voorhees Farmer, writer for "Jason X", wrote the scene where Jason wakes from cryonic hibernation just as two of the teenagers are having sex. Farmer liked the idea that sex acts triggered Jason back to life. Whatever his motivations, Kane Hodder believes there is a limit to what he will do. According to Hodder, Jason might violently murder any person he comes across, but when "Jason Takes Manhattan" called for Hodder to kick the lead character's dog, Hodder refused, stating that, while Jason has no qualms against killing humans, he is not bad enough to hurt animals. Another example from "Jason