Gloryhole celebrity news pornography features women performing fellatio on unidentified men through a small hole made in a bathroom divider. Group sex is sexual behavior involving more than two participants. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. Emetophilia pornography involving vomiting and gagging. Bhabha, Anne McClintock gay sex video and Kobena Mercer. 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. These scenes may either have the cameraman directly engaging in sex or merely filming others having sex. Sometimes special furniture is used, such as a naked celebrities queening stool or smotherbox. This fetish sometimes originates from childhood memories of needing, or of seeing another needing, to urinate. Ass to mouth pornography shows the transfer of a performer penis from a second performer anus to that same second performer mouth in a single shot. Some women who engage in same-sex sexual activity may reject not only identifying as lesbians but as bisexual as well, while other women self-identification as lesbian may not align with their sexual orientation or sexual behavior; sexual identity is not necessarily the same as one sexual orientation or sexual behavior, due to various reasons, such as the fear of identifying their sexual orientation in a homophobic setting. Within a BDSM momporn or D/s context, facesitting can be an especially intense form of erotic humiliation. A common way that these are depicted in a single scene is with one woman and two men performing together. Pregnancy fetishism is a context where pregnancy is seen by individuals or cultures as an erotic phenomenon. Depictions of male and female masturbation are common in pornography, including anime hentai gay naked celebrities pornography. As of 2013, little analysis of this paraphilia has been reported in medical literature.