Abstract
In the current era of exploring changing sexual behavior, promoting and supporting the diversity of pleasure, the sexual health and rights of sexual minorities are getting more public attention, among which the "Fourth Love" emerges as a distinctive group within the framework of Chinese culture. Fourth Love refers to a loving relationship between couples of the opposite sex where the woman assumes the traditional male gender role and the man assumes the traditional female gender role, and always accompanied by a special pattern of sexual behavior that women penetrate the men's anus using their fingers or a device. This theoretical article begins by introducing and discussing the historical background, core concept "Fourth Love" and its related categories. Subsequently, we start from Judith Butler's gender performativity theory and interpret the Fourth Love from the perspective of "de-naturalization" and argue that the gender performativity theory provides a reasonable explanation for the gender characteristics (female top and male bottom) of the Fourth Love. Finally, we posit a discussion and outlook on the survival and development of the Fourth Love in the fields of sexual health, sexual pleasure, sexual right, and family and marriage, and calls for more understanding and psychological support from the society for them.