Some restrict a policy of panties/nipple tape for females and some allow full nudity with explicit sexual interaction allowed. Bisexual pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. The rise of the Internet in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore complicated the censorship regimes around the world and the legal prosecution of obscenity. Lesbian pornography hentai sex made for women is usually made by women, and usually features women who identify as lesbian or bisexual. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina. A variant of A2M is ATOM where naked milf a performer inserts his penis directly from one recipient anus into a second recipient mouth. It like associating every Christian with the zealots who cause religious wars. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. Within a BDSM or D/s context, facesitting can be an especially intense form of erotic humiliation. In modern BDSM vernacular, young gay porn the queening stool allows open access to the crotch while seated. 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. There may be more than two participants; both group sex and gang banging can be included. In pornography, depictions of lesbian sex form a popular subgenre, directed toward a male heterosexual and female homosexual audience. It is used, for example, at fertility clinics to stimulate sperm donors. 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.