Regular ArticleHuman sperm competition: ejaculate manipulation by females and a function for the female orgasm
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2017, Journal of Theoretical BiologySperm competition in marriage: Semen displacement, male rivals, and spousal discrepancy in sexual interest
2017, Personality and Individual DifferencesCitation Excerpt :Men may facilitate their partner's orgasm to increase her sexual satisfaction and, consequently, reduce her extra-pair copulatory desire (i.e., sperm competition risk). Additionally, Baker and Bellis (1993b) provided evidence that women who experience orgasm near the time of their partner's ejaculation retain more of his sperm in their reproductive tract, potentially increasing his chances of success in sperm competition. To test this alternative hypothesis, we secured wives' reports of their enjoyment of sex with their partner, in general, and their occurrence of orgasm, in particular.
Sperm Competition
2023, The Oxford Handbook of Human Mating
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