DescriptionThere is a great deal of evidence supporting a sexual script that guides intimate behavior between individuals. People, however, engage in many different types of relationships including hookups, one-night stands, friends with benefits, short-term relationships, and long-term relationships. While research shows that people discriminate between their relationships based on level of commitment, exclusivity, and emotion, little research has been done to explore how people differentiate between sexual partners through their behaviors. In the current study, it was predicted that the sexual script would vary across different types of relationships. People were expected to engage in different sexual activities with different sexual partners. Two hundred and seventy three emerging adults completed an online survey about their relationship experiences and desires. Mutually-stimulating and exclusively partner-stimulating activities were found to be more common in more committed relationship types. Sex differences were found in desires to engage in a greater number of sexual behaviors, to have casual relationships, and to have sexual intercourse in casual relationships, consistent with evolutionary theory. Though, men and women surprisingly did not differ in levels of erotophilia. Suggestions for future research are also discussed.