Dating in a sexually segregated society
The four important sexual hormones are oxytocin, prolactin, follicle-stimulating hormone, and luteinizing hormone.
Males also have both internal and external genitalia that are responsible for procreation and sexual intercourse.
These theories are mostly consistent with observed differences in males' and females' attitudes toward casual sex before marriage in the United States; other aspects of human sexuality, such as sexual satisfaction, incidence of oral sex, and attitudes toward homosexuality and masturbation, show little to no observed difference between males and females.
Observed gender differences regarding the number of sexual partners are modest, with males tending to have slightly more than females.
As adults, they have different reproductive mechanisms that enable them to perform sexual acts and to reproduce.
Freud redefined the term sexuality to make it cover any form of pleasure that can be derived from the human body.
Some cultures have been described as sexually repressive.