But the fascinating finding was that females proved to be more orgasmic with the socially dominant males, especially when a low-ranked female copulated with a high-ranking male. (p.232)
A recent British study found that women have more frequent high-sperm-retention orgasms (those that occur within two minutes after the male orgasm) with their affair partners than with their husbands. (p.232)
Women who have affairs appear to time their sexual liaisons to coincide with the most fertile phase of their cycle ~ prior to or at ovulation. Indeed, rate of sexual intercourse with an affair partner during peak fertility is three times as high as the rate that occurs during the low-fertile post - ovulatory phase. (p.232-233)
The results nonetheless are consistent with the idea that women' s extra-pair sexual fantasies encourage them to seek sex in the arms of a lover. (p.235)
Indeed, when women were asked to choose the "healthiest" face, their choices were indistinguishable from their judgments of the "most attractive" face. In sum, women appear to be attracted to healthy immunocompetent men, especially when fertile and especially for short-term mating, as a means of securing good genes that can be passed down to their children. (p243-244)
( David M. Buss – The Evolution of Desire )
