The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. John Stagliano is considered to have started the gonzo pornography genre with his Buttman series of films. New York photographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. 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. It is geared towards heterosexual men, who most typically define a threesome as such. For example, in Australia it is rated Refused Classification . Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. Some may keep their hand stationary while pumping into it with pelvic thrusts in order to simulate the motions of sexual intercourse. On the other hand, the masochist enjoys being hurt, gay fuck humiliated, or suffering within the consensual scenario. If one person is penetrated by two objects, it is generically called double penetration . Types of anal sex can also be a part of lesbian sexual practices. In 1988, a sex tape caused significant damage to Rob Lowe career. Likewise, Fox Broadcasting Company has also dedicated an entire evening programming block to adult animation programs, known as Animation Domination. Bondage websites and bondage imagery in mainstream pornography As of 2003, specialist bondage magazines were mostly displaced by the availability of bondage material on the World Wide Web, and the presence of bondage imagery in mainstream pornographic magazines such as Nugget and Hustler Taboo magazine. Bondage pornography specializes in the depiction gay hentai of sexual bondage horny milfs or BDSM activities as photographs, stories, movies, or drawings.