Ovulating Women Prefer Images of Penetration Over Images of Oral Sex

September 13, 2014 3:24 AM

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Ovulating Women Prefer Images of Penetration Over Images of Oral Sex

Canadian researchers found that during ovulation the female genitalia is more responsive to images of penetration than to images of oral sex. The difference is significantly reduced during non-fertile phases of the menstrual cycle.

Vaginal photoplethysmograph used to measure women's genital response at the Sexual Psychophysiology Lab of the Kinsey Institute (credit: Pere Estupinyà)

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