Lolicon and its contribution to the controversy regarding the regulation of pornography of depicting gay sex minors that don’t exist has been a major issue for free speech in and outside of Japan. For circumcised males, on whom the glans is mostly or completely uncovered, this technique creates more direct contact between the hand and the glans. A survey by the New York City Department of Health and Mental Hygiene found that heterosexual women are more likely to bareback when engaging in anal sex than homosexual and bisexual men. John Stagliano is considered to have started the gonzo pornography genre with his Buttman series of films. Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. Participants who exert sexual control over their partners are known as dominants or tops while participants who take the passive, receiving, or obedient role are known as submissives or bottoms. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. The phrase buttered bun is sometimes used to refer to the owner of the orifice in question. It is also known colloquially as gushing or squirting, although these are considered to be different phenomena in some research publications. The Silent Duck, also called Duck-Billing, is the technique often used in which the person engaging in hand insertion shapes the hand to resemble a duck beak. In Canada, Teletoon offers up its own Teletoon at Night programming block. Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. In modern BDSM vernacular, the queening stool allows open access to the crotch while seated. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination.