Spanking can be administered in a number of spanking positions. The term combines elements of the Freudian psychoanalytic fetish and the Marxist commodity fetish, and is used in the context of British, Spanish and French colonialism and imperialism and their aftereffects. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. If ejaculation is onto the other person face it can be called a facial. It is typically animated pornography, as the legal age to be featured in a pornographic film in Japan is 18. Dwarfs or midget pornography features performers who big tit milf are dwarfs/midgets. It has also been recommended as a form of foreplay or safer sex. In some scenes or relationships it may be impossible for consent to be withdrawn in the middle of a scene, or the young gay porn bottom may have the ability to revoke consent for a relationship as a whole, but not for a particular scene. The concept of lesbian, to differentiate hentai videos women with a shared sexual orientation, is a 20th-century construct. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the particular acts performed at any one time, sometimes with the camera providing a first person view. The name was coined from the title of the controversial book. 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. Oral sex pornography frequently features a person performing fellatio, and less frequently cunnilingus. Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. 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.