Saliva pornography involves salivation and saliva. It may be used as foreplay, or as an alternative to sexual penetration. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of horny milfs urine or urination. This industry employs thousands of performers along with support and production staff. The Silent Duck, hentai movies 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. Fisher young gay porn said that perhaps, the fleshy, rounded buttocks attracted males during rear-entry intercourse. Another variant of reality pornography consists of normal couples that are filmed by professionals, in which case the only obvious distinction from amateur pornography is the higher quality of production, filming and editing. The prostate gland is one of the organs that contributes fluid to semen. Dwarfs or midget pornography features performers who are dwarfs/midgets. Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. The smotherbox is placed on a stable surface. They further argue that setting a discrete line between safe and not-safe activities ideologically denies consenting adults the right to evaluate risks vs rewards for themselves; that some adults will be drawn to certain activities regardless of the risk; and that BDSM play—particularly higher-risk play or edgeplay—should be treated with the same regard as extreme sports, with both respect and the demand that practitioners educate themselves and practice the higher-risk activities to decrease risk. Pegging is a sexual practice in which a woman performs anal sex on a man by penetrating the man anus with a strap-on dildo. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. Internal ejaculations, followed by images of semen dripping from the anus, are sometimes depicted in bareback gay pornography, where they are referred to by the term breeding or the reverse money shot.