The scenario is a genre of erotica, which on the internet is sometimes abbreviated to CMNF, and may involve sexual and nonsexual erotic scenarios. Terminology for roles varies widely within the various BDSM subcultures. The Silent Duck, also called Duck-Billing, is the technique often used in which the person engaging in hand insertion shapes momsex the hand to resemble a duck beak. It celebrity porn like associating every Christian with the zealots who cause religious wars. Bobbi S. Pornography is often referred to as porn and a pornographic work as a porno. Shibari is a Japanese word that literally means to tie or to bind. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally lesbian hentai made pornography designed to appear as if it were amateur. BDSM is a variety of erotic practices involving dominance and submission, role-playing, restraint, and other interpersonal dynamics. Sadomasochism is practiced in isolation relatively rarely, though some animated porn masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or as part of, masturbation. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. Examples of gay bear porn heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. Some restrict a policy of panties/nipple tape for females and some allow full nudity with explicit sexual interaction allowed. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. Clothes wetting: The person is sexually aroused by wetting one clothing or observing another person doing so. The smotherbox is placed on a stable surface. Examples include the Girls Gone Wild and Girls Who Like Girls Series. A homosexual threesome would involve either three men or three women. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over gay group sex into gay pornography.