Throughout history, women have not had the same freedom or independence to pursue homosexual relationships as men, but neither have they met the same harsh punishment as homosexual men in some societies. Some may keep their hand stationary while pumping into it with pelvic thrusts in order to simulate the motions of sexual intercourse. Common positions include lying on back or face down, sitting, squatting, kneeling or standing. Female ejaculation is the expulsion of fluid by the paraurethral ducts through and around the human female urethra during or before an orgasm. Both sexes sometimes apply lubricating substances to intensify sensation. Some straight actors have started acting in gay porn only to be accused of being gay while others first step was to strictly do solo scenes. It is commonly depicted in pornography, but very rarely in mainstream cinema. BDSM actions can often take place during a specific period of time agreed to by both parties, referred to as play, a scene or a session. Rainbow parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. Terminology for roles varies widely within the various BDSM subcultures. On May 27, 2010 the television program The Doctors discussed the topic with dozens of teens, parents, and professionals. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. A male voyeur is commonly labeled Peeping Tom, a term which originates from the Lady Godiva legend. Femdom features BDSM scenes in which the dominant partner is female. The term combines elements of the Freudian psychoanalytic fetish and the Marxist commodity fetish, gay porn and is used in the context of British, Spanish and French colonialism and imperialism and their aftereffects. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other.