Pornography is generally classified as either softcore or hardcore pornography. It is mutual consent that makes a clear legal and ethical distinction between BDSM and such crimes as sexual assault or domestic violence. A common way that these are depicted in a single scene is with one woman and two men performing together. Such explicit sexual interaction is seen only rarely in public play spaces, and it is sometimes specifically banned by the rules of a party or playspace. Since at least 1973, it has also been used to refer to a sexually attractive young woman. The stigma of being gay or labeled as such has steadily eroded since the Stonewall milf fuck riots began the modern American gay rights movement in 1969. In September 2003 the BBC reported on the new dogging craze. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur. Such films continued to be produced but could only be distributed by underground channels. Lesbianism has been a theme in erotic art since at least the time of ancient Rome, and many regard depictions of lesbianism gay movies to be erotic. It may also involve touching, rubbing, or pinching the nipples gay hentai or other erogenous zones while masturbating. The genres of pornography are based on the type of activity featured and the category of participants, for example mateur pornography is a category of pornography that features models, actors or non-professionals performing without pay, or actors for whom this material is their only paid modeling work. Pornography may be presented in a variety of media, including books, magazines, postcards, photographs, sculpture, drawing, painting, animation, sound recording, film, video, and video games. 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.