Do You Know When Your Partner is in the Mood for Sex?

Sometimes it’s obvious that our partner is interested in having sex—they might give us that seductive look or special touch. But other times it might be clear that tonight’s not the night—our partner might avoid our advances and simply roll over and go to sleep. But often, amidst our busy lives, work responsibilities, and children to care for, it may be much less clear how interested our partner is in engaging in sex. In a recent set of studies, my colleagues and I looked at how accurate people are at picking up on their partner’s interest in sex and how perceptions of a partner’s sexual desire are associated with relationship satisfaction and commitment.¹ 

First I want to share what we currently know from previous research about perceptions of sexual interest. All of the the past research on perceptions of sexual interest has focused on initial encounters between men and women—that is, men and women rating the sexual interest of a person they are meeting for the first time. The results are very consistent: men tend to show a sexual overperception bias where they perceive greater sexual interest in a women’s behavior than she herself reports. The majority of this research draws on evolutionary psychology and explains these findings as reflecting the fact that it’s more costly (in terms of men’s chances for mating with a good partner and having kids) for men to miss a potential mating opportunity than to perceive that a woman is interested in sex when she actually is not; thus, men tend to err on the side of overperception.²

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