Wirtualna wycieczka po A variant of A2M is ATOM where a performer inserts his penis directly from one recipient anus into a second recipient mouth. Pegging is a sexual practice in which a woman performs anal sex on a man by penetrating the man anus with a strap-on dildo. Threesome can also refer to a love triangle, a three-way romantic relationship. The term soft crush refers to the more common fetish surrounding videos involving inanimate objects or small invertebrates being crushed, while the term hard crush refers to such videos involving larger animals with vertabrae, and arguably more pain-susceptible animals . It is sometimes combined with BDSM features. Transsexual people Transman pornography features performers who were born female and who medically transitioned to male. Sadomasochism is practiced in isolation relatively rarely, though some masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or as part of, masturbation. Pornography may be presented in a variety of media, including books, magazines, postcards, photographs, sculpture, drawing, painting, animation, sound recording, film, video, and video games. Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates. The name is a reference to gonzo journalism, in which the reporter is part of the event taking place. By Japanese law, the genitals of actors and actresses must be censored and up the mid-1990 so was the big tit milfs depiction of pubic hair. The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. The term hentai is never used in this context in Japanese. Bisexual pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. Transsexual porn star Wendy Williams has stated that transsexual Porn is classified as Straight Specialty. Entacle erotica describes a type of pornography most commonly found in Japan which integrates traditional pornography with elements of bestiality and a fantasy, horror, or science-fiction theme.