Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. Both sexes sometimes apply lubricating substances to intensify sensation. Although interracial pornography theoretically can apply to depictions of sexual activity between performers of any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers. This industry employs thousands of performers along with support and production staff. Women that take on the roles of the giantess within this fetish often find the practice to be empowering and enjoy being worshiped. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. The gay fuck phrase is commonly found on porn sites. Omorashi: The act of holding one own urine until the need to urinate is urgent, making another hold in their urine, or watching another person with an urgent need to urinate. These scenes may involve the female actor calling for the shot to be directed at some specific part of her body. Multiple men and women Bisexual pornography features one woman and two men who all perform sex acts on each other. Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. A few extremely flexible males can reach and stimulate their penis with their porn milf tongue or lips, and so perform autofellatio. The term pearl necklace is used by some because the hentai videos drops of semen deposited by the man resemble a necklace of translucent white pearls. A variant of A2M is ATOM where a performer inserts his penis directly from one recipient anus into a second recipient mouth. In some scenes or relationships it may be impossible for consent to be withdrawn in the middle of a scene, or the bottom may have the ability to revoke consent for a relationship as a whole, but not for a particular scene. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s.