SV Borsch 1925 in der Buttocks are sometimes emphasized in pornography, where they are often referred to as booty. The strategies and tactics that are used to smuggle one of the couple into and out of the toilet undetected are as important or almost as important as the urination. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. Many cultures describe viagra dosage pain as an aphrodisiac. Concerted deployed sexual rejection exercised on the partner can be an aspect of Dominance and Submission as well. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. It is typically animated pornography, as the legal age to be featured in a pornographic film in Japan is 18. This type of pornography is almost exclusively hentai, as true hermaphroditic humans are not fertile and are not usually found in nature. Preggo pornography features pregnant performers and may include erotic lactation as a fetish. Kurt Wild, who appeared as a bottom in Lucas Entertainment Gigolos, is married to a woman and has three children. Bukkake is a sex act portrayed in pornographic films, in which several men ejaculate on a woman, or another man. Lying face down one may use the hands, one may straddle a pillow, the corner or edge of the bed, a partner leg or some scrunched-up clothing and hump the vulva and clitoris against it. Medical pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, and pelvic or gynecological ultrasounds. Rimjob pornography centers around anilingus. Hermaphrodite, also known as herm, refers to pornography, typically hentai, that features persons with the genitalia of both sexes. Mammary intercourse is known as titty-fucking, titfuck, or a titjob in the United States, as well as tit wank or French fuck in the United Kingdom - the latter term dating back to the 1930s; while a more jocular equivalent is a trip down mammary lane.