Sexual motivations, fantasies, and the ticking biological clock" PDF. Behavioral and Brain Sciences. A nation study of sex, culture, and strategies of human mating". Although polygyny is more common, some tribal societies are traditionally polyandrous. Rate of molecular evolution of the seminal protein gene SEMG2 correlates with levels of female promiscuity.
Pathological overactivity of the dopaminergic mesolimbic pathway in the brain—forming either psychiatrically, during mania ,  or pharmacologically, as a side effect of dopamine agonists , specifically D 3 -preferring agonists   —is associated with various addictions   and has been shown to result among some subjects of either sex in overindulgent, sometimes hypersexual , behavior. Cuckold fetish is colloquial for a paraphilia in which sexual gratification is gained from maintenance or observation of sexual relations by a woman with a man or a number of men besides her husband, boyfriend or long-term male sex partner.
Social power has been popularly associated with sexual infidelity among men; experimental psychologists have linked power with sexual infidelity among women also. Retrieved December 21, Retrieved 28 April Why Older Women Lust". The use of demographical methods in sexological research was pioneered by the American zoologist Alfred Kinsey , who published two books— Sexual Behavior in the Human Male and Sexual Behavior in the Human Female —collectively known as the Kinsey Reports. One international study found women to be more variable than men in their sex drive. The Women's Movement was closely allied with the free love movement, whose advocates had a strong belief that a woman ought to be herself sovereign over her body.