The term sadomasochism is derived from the words sadism and masochism . The reverse of this, in which nude women interact with clothed men, is called Clothed male, naked female . It contains graphic sexual activity and visible penetration. Some men also enjoy anal stimulation, with fingers or otherwise, without any prostate stimulation. Femdom features BDSM scenes lesbian hentai in which the dominant partner is female. Rainbow party A rainbow party is an urban legend spread from the early 2000s. The term pearl necklace is used by some big tit milf because the drops of semen deposited by the man resemble a necklace of translucent white pearls. Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. Both forms of pornography generally contains nudity. Fisher said that perhaps, the fleshy, rounded buttocks attracted males during rear-entry gay twink porn intercourse. Since mammary intercourse is a non-penetrative sex act, the risk of passing a sexually transmitted infection that requires direct contact between the mucous membranes and pre-ejaculate or semen is greatly reduced. Commenting on why there are not as many female macrophiles, psychologist Helen Friedman theorized that because women in most societies already view men as dominant and powerful, there no need for them to fantasize about it. Bukkake is a sex act portrayed in pornographic films, in which several men ejaculate on a woman, or another man. A related term used in the genre is the term cougar, which implies an older woman as predator. Evolutionary psychologists suggest that rounded buttocks may have evolved to be desirable trait because they provide a visual indication of the woman youth and fertility. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man.