Irrespective of the legal or social view of pornography, it has been used in a number of contexts. The loose and direct camera work often includes tight shots of the genitalia, unlike some traditional porn. A celebrity can fight the release in court to maintain deniability while still enjoying the career benefits. Women who lesbian milfs perform in lesbian pornography often do not consider themselves lesbian hentai sex or bisexual. New York photographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. In the West, masturbation in private or with a partner is generally considered a normal and healthy part of sexual enjoyment. Studies have found that masturbation is frequent in humans of both sexes and all ages, although there is variation. 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. By comparison, gonzo pornography puts the camera right into the action, often with one or more of the participants both filming and performing sexual acts, without the usual gay twink porn separation between camera and performers seen in conventional porn and cinema. Following the introduction of the Motion Picture Association of America film rating system, independent animation producers attempted to establish an alternative to mainstream animation. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. John Stagliano is considered to have started the gonzo pornography genre with his Buttman series of films. These actors often play the top roles but this is not always the case, such as with Kristen Bjorn and some Bel Ami models. Use of the agreed safeword is seen by some as an explicit withdrawal of consent. Some aspects of the research community distinguish between female ejaculation and what is colloquially known as squirting or gushing.
