A man and woman are in an open relationship. They have agreed that having sexual partners outside of their relationship is permissible. One night, when her partner is in another city, the woman has sex with the man’s best friend. What does this mean for their relationship? More importantly, why is there such a strong cultural taboo against this kind of triangulation and what does it reveal about the social organization of gender and sexuality? In Beyond Monogamy, Mimi Schippers asks...
