The findings may seem like a stretch, but before you cry foul, consider that a number of studies have shown the same correlation from unprotected vaginal sex. Women who frequently ingest their partner’s semen have been shown to have a significantly lower risk of preeclampsia - a mysterious and dangerous pregnancy condition that is the leading cause of prenatal infant death - than women who do not swallow. Oral sex has been linked to health effects in women. (I wonder whether the “sexiness” quotient of having your partner’s semen inside you might be another, perhaps complimentary, explanation.) “There’s some evidence that gay males following anal intercourse will go out of their way to try to retain the semen for extended periods of time, which suggests psychotropic effects,” Gallup says.
