For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Cuckold fetish pornography porn milf that involves a cuckolded husband. Voyeurism: Seeing another urinate without the person knowledge either through video taping by a hidden camera, or by lurking in locations where people are urinating or are likely to have an urge to urinate. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating. Actual spying may violate privacy and/or trespassing laws in many countries. If dramatic skills are not involved, a performer in a porn film may also be called a model. In general, BDSM play is usually structured such that it is possible for the consenting partner to withdraw his or her consent during a scene; for example, by using a safeword that was agreed on in advance. Men may find stimulation of the anus, rectum, and adjacent organs enjoyable. Commercialized pornography accounts for a nearly US0 billion worldwide industry for the production of various media and associated products and services. Bukkake is a sex act portrayed in pornographic films, in which several men ejaculate on a woman, or another man. Bara male homosexual hentai designed to appeal to men. Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. There has been an increase in discussion and portrayal of masturbation in art, popular music, television, films, and literature. Creampie scenes depart from heterosexual pornographic convention in favor of a depiction that more closely mimics sexual intercourse as performed in ordinary life; they have been called the counterimage of facials. Both forms of pornography generally contains nudity. The term applies to the depiction of the act rather than the act itself, and so does not hentai movies include live exhibitions like gaysex sex shows and striptease.