gylo
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A woman who perceives her
mate to be of low genetic quality may employ a
strategy of garnering resources from her primary
mate but having extra-pair sex with a male who is
of higher genetic quality. These circumstances
could have selected female design favouring reten-
tion of sperm from men who possess phenotypic
markers of good genes. Baker & Bellis (1993)
reported provisional support for these notions. In
particular, women in multiple mating situations
appear more likely to orgasm during copulation
with extra-pair partners than with in-pair partners
(see also Bellis & Baker 1990).
From the study Human female orgasm and mate fluctuating asymmetry