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. Women who perform in lesbian pornography often do not consider themselves lesbian or bisexual. The work of Bruce Seven has been called reality porn, due to his lack of using scripts and asking his performers to gay twinks act naturally in their own character. Oral sex pornography frequently features a person performing fellatio, and less frequently cunnilingus. What seems clear from the historical record is that much of the lesbian material in pornographic texts was intended for a male readership. For much of the history of cinema and television, lesbianism was considered taboo, though since the 1960s it has increasingly become a genre in its own right. Gloryhole pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other. This stop and go build-up, known as edging, can achieve even stronger orgasms. Individuals are also sometimes abbreviated when referred to in writing, so a dominant person may be referred to as a Dom for a man, and a Domme for a woman. Rainbow lesbian hentai parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile nude milfs novel called Rainbow Party. 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. Reality pornography is professionally made porn which seeks to emulate the style of amateur pornography.