The rise of the Internet in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore complicated the censorship regimes around the world and the legal prosecution of obscenity. Women in homosexual relationships responded to this designation either by hiding their personal lives or accepting the label of outcast and creating a subculture and identity that developed in Europe and the United States. Klaw ran an international mail-order business out of his store, Movie Star News, selling cheesecake pinups and bondage/spanking photos. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. Some BDSM practitioners prefer a code of behavior that differs from SSC and is described as risk aware consensual kink , indicating a preference for a style in which the individual responsibility of the involved parties is emphasized more strongly, with each participant being responsible for his or her own well-being. However the genre remains a very small proportion of the pornographic DVD market; for example at porn retailer HotMovies. Interracial pornographic films have experienced an explosion in popularity, becoming one of the fastest-growing and biggest-selling genres. Going back at least as far as the Christy twins in the 1970s, depictions of incest and particularly incest between twins has been a feature of gay pornography. A large part of the popularity of these videos is seeing how regular and normal the girls are in real-life. Can also include auto-fellatio, or performing oral sex on oneself. Transsexual pornography features transwomen anime hentai performers, who typically have male genitalia and augmented female breasts . Pleasure for the giver during anilingus is usually based more momporn on the principle gay sex video of the act. Mutual masturbation can be practiced by males or females in pairs or groups with or without actually touching another person as indicated by the following examples of contact versus non-contact scenarios: Non-contact mutual masturbation Two people masturbating in the presence of each other but not touching.