Solo performances in gay pornography have been described in 1985 as either or both active and/or passive , whereas female solo performances are said to be exclusively passive . Creampie scenes depart from heterosexual pornographic convention in favor of a depiction that more closely mimics gay twink porn sexual intercourse as performed in ordinary life; they have been called the counterimage of facials. Ass to mouth pornography shows the transfer of a performer penis from a second performer anus to that same second performer mouth in a single shot. Female ejaculation is the expulsion of fluid by the paraurethral ducts through and around the human female urethra during or before an orgasm. Lolita pornography features women who are 18 years old or slightly older, who pretend to be underage teen girls. In S/M, the Sadist is usually the Top and the Masochist the Bottom, but these roles are frequently more complicated or 3d hentai jumbled . Rainbow parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. Femdom features BDSM scenes in which the dominant partner is female. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other. Pornography in Japan is large and intertwined business of adult entertainment with unique characteristics that readily distinguish it from western pornography. Typically featured are hitting, choking, name-calling naked milf and hair-pulling. While anal sex is commonly associated with male homosexuality, research shows that not all gay males engage in anal sex and that it is not uncommon in heterosexual relationships. Bisexual pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. Some men also enjoy anal stimulation, with fingers or otherwise, without any prostate stimulation. Group sex most commonly takes place in a private sex party or semi-public swinger gathering, but may also take place at massage parlors or brothels or, in some jurisdictions, at purpose-built locations such as sex clubs.