Katy Perry kissed a girl and liked it, but she’s far from the only one. Women have been known to be more sexually fluid than men (watch just about any music video for evidence), but no one had a solid theory for why that is — until now.
According to the journal, Biological Reviews, evolution likely has a hand in the reason women can apparently “change their sexual desires and identities from lesbian, to bisexual, to heterosexual and back again.” The lead author of the study, Dr. Satoshi Kanazawa, suggests, the evolutionary pressures of polygamy may have influenced sexual fluidity among women. This has to do with the stresses of living as co-wives in polygamous marriages involving several women and one man.
As you can imagine, life must feel pretty lonely when your sex life is only scheduled for Tuesdays. It makes sense that women would look to their co-wives for comfort, “therefore reducing conflict and tension inherent in such marriages while at the same time successfully reproducing with their husbands in heterosexual unions,” Dr. Kanazawa says,
Rather than being straight or gay, to whom women are sexually attracted may depend largely on the particular partner, their reproductive status and other circumstances.
This theory may also provide the missing puzzle piece in other facets of human sex research, including the differences between male and female homosexuality, arousal and menstrual synchronicity. Finally, someone besides cosmic fortune tellers might be able to explain why everyone in the office starts trading tampons around the same time of each month.
This Theory May Explain Why Women Are More Interested In Same-Sex Acts Than Men
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