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. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other. Transsexual pornography is a genre of pornography. A sex party is a gathering at which sexual activity takes place. 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. It contains 3d hentai graphic sexual activity and visible horny milfs penetration. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. Because the viewing of such films carried a social stigma, they were viewed at brothels, adult movie theaters, stag parties, at home, in private clubs and also at night cinemas. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive. Reality pornography is professionally made porn which seeks to emulate the style of amateur pornography. Sexual relations between women have been illustrated as well as narrated, but much gay bear porn of the written material from the early modern period has been destroyed. Reality and voyeur pornography, animated videos, and legally prohibited acts also influence the classification of pornography. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men.