Bestiality is illegal in gaysex many countries. Pornography is often distinguished from erotica, which consists big tit milf of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical act, so as to arouse quick intense reactions. If one person is penetrated by two objects, it is generically called double penetration . It is sometimes combined with BDSM features. Fisher said that perhaps, the fleshy, rounded buttocks attracted males during rear-entry intercourse. Commenting on why there are not as many female macrophiles, psychologist Helen Friedman theorized that because women in most societies already view men as dominant and powerful, there no need for them to fantasize about it. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. Double penetration of the vagina, anus and mouth, can involve: Simultaneous penetration of the anus by two penises or other objects. Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. It is typically animated pornography, as the legal age to be featured in a pornographic film in Japan is 18. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, lesbian hentai gay, bisexual, and transsexuals in addition to traditional heterosexual roles. In general, BDSM play is usually structured such that it is possible for the consenting partner to withdraw his or her consent during a scene; for example, by using a safeword that was agreed on in advance. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s. 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.