By Japanese law, the genitals of actors and actresses lesbian milfs must be censored and up the mid-1990 so was the depiction of pubic hair. First found in softcore movies and erotic thrillers, depictions of lesbianism entered mainstream cinema in the 1980s. Pornography is often distinguished from erotica, which consists of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical act, so as to arouse quick intense reactions. English adopts and uses hentai as a genre of pornography by the commercial sale and marketing of explicit works under this label. The term hentai is never used in this context in Japanese. The name of the practice, when it is done in a repeated in-and-out motion, is derived from its passing resemblance to the dipping of a tea bag into a cup of hot water as a method of brewing tea. Mammary intercourse is said by Alex gay twink porn Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. This fetish sometimes originates from childhood memories of needing, or of seeing gay hentai another needing, to urinate. A variant of A2M is ATOM where a performer inserts his penis directly from one recipient anus into a second recipient mouth. Since the 1980s, many practitioners and organizations have adopted the motto safe, sane and consensual, commonly abbreviated as SSC, which means that everything is based on safe activities, that all participants be of sufficiently sound/sane mind to consent, and that all participants do consent. 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. Commercialized pornography accounts for a nearly US0 billion worldwide industry for the production of various media and associated products and services.