A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina. Gay-for-pay describes male or female actors, pornographic stars, or sex workers who self-identify as heterosexual but who are paid to act or perform as homosexual professionally. Entacle erotica describes a type of pornography most commonly found in Japan which integrates big tit milf traditional pornography with elements of bestiality and a fantasy, horror, or science-fiction theme. For instance, Amateur Allure has a trademark shot where the sexually performing cameraman circles a handycam around the sexually performing model head. The prostate gland is one of the organs that contributes hentai videos fluid to semen. BDSM is a variety of erotic practices involving dominance and submission, naked celebrities role-playing, restraint, and other interpersonal dynamics. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. If dramatic skills are not involved, a performer in a porn film may also be called a model. Pro-am pornography is sub-genre of amateur pornography that refers to professionally made porn that features amateur actors/actresses, often appearing for the first time in a pornographic film. It is used, for example, at fertility clinics to stimulate videos gays sperm donors. When the interest in a particular subject is obsessive, the behavior may be described as stalking. Foot fetish pornography features heavy emp bareback gay porn hasis on the feet of the participants, either in combination with kissing and genital sex or in the context of acts such as trampling or crush fetishism. Some may keep their hand stationary while pumping into it with pelvic thrusts in order to simulate the motions of sexual intercourse. 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. It has also been recommended as a form of foreplay or safer sex.