Lolita pornography that features actual teenage girls under the age of 18 is illegal in most countries and treated as child or youth pornography. The queening stool is also related to a smotherbox, which also allows the person under the seat to be locked in place, restrained by the neck as in horny milfs a set of stocks. It may occur more frequently in private situations, such as spontaneous sexual activity among three friends, or arranged in a community of like-minded swingers or planned as a once-only experience; and rarely in anonymous settings, such as at orgies or other sex parties. This is commonly called double vaginal penetration or double gaysex stuffing. Studies among BDSM practitioners in the US have shown that about half of all men find the idea of bondage to be erotic; many women do as well. Some aspects of the research community distinguish between female ejaculation and what is colloquially known as squirting or gushing. Positions can also be chosen specifically for added effects such as increased humiliation, elevation and suspension. As women, they face concerns separate from men. The term breast fetishism is also used to refer to cultural attention to female breasts and the sexuality they represent, with debate continuing as to whether the modern widespread fascination with breasts among heterosexual males in western societies is a sexual fetish. Medical pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, and pelvic or gynecological ultrasounds. Reality pornography is a genre of pornography where staged scenes, usually shot in cinéma vérité fashion, set up and precede sexual encounters. Women who adopt a lesbian identity share experiences that form an outlook similar to an ethnic identity: as homosexuals, they are unified by the heterosexist discrimination and potential rejection they face from their families, friends, and others as a result of homophobia. It is typically animated pornography, as the legal age lesbian hentai to be featured in a pornographic film in Japan is 18.