When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. Bukkake videos are a relatively prevalent niche in contemporary pornographic films. Yuri is the lesbian equivalent. The Japanese sex industry uses the term Paizuri . Moreover, many gay or bisexual men who star in gay porn films may wish to be identified publicly as heterosexual for personal gay hentai or professional reasons. High heel pornography involves women or men dressed in high heeled shoes. Transwomen are most often featured with male partners, but are also featured with other transsexuals or cissexual women. Masturbation has been depicted in art since prehistoric times and is mentioned and discussed in very early writings. It has been described as professionally made porn which seeks to emulate the style of amateur pornography. POV pornography involves camera angles designed to provide the viewer a view similar to that seen by one of the participants, whose face is never shown. The term also refers to the visible seeping or dripping of semen from the vagina . In some areas, there are laws stating it is not legally possible to consent to be killed, and elsewhere it may still be legally dubious . This is commonly called gay boy porn double anal or double stuffing. The term bareback is used less frequently in the heterosexual community. Fat fetishism also incorporates stuffing and padding, whereas the focus of arousal is on the sensations and properties of a real or simulated gain. When questioned about her particular kink Covét replied, lesbian milfs If we women have to take it from behind, then why not a man? This is why video stores might consider stocking transgendered subject matter in the straight section, as some straight men will have passive or active sex with another man as long as their partner appears to look like a woman to them, to some minor or major degree. Arguably the most famous example of the genre is the Taboo series. BDSM pornography depicts bondage and discipline, domination and submission, sadism and masochism.