Contrary Black Porn to the other two types, B/D does not define the Tops and Bottoms itself, and is used to describe the general activities with either partner being the receiver and the giver. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. 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. In the 18th and 19th centuries, some European theologians and physicians described it as heinous, deplorable, and hideous, but during the 20th century, these taboos generally declined. Buttocks are sometimes emphasized in pornography, where they are often referred to as booty. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men. It is also known colloquially as gushing or squirting, although these are considered to be different phenomena in some research publications. In POV porn, the shooting style is generally similar to gonzo pornography, with the person receiving sexual gratification holding the camera him or herself—aiming it down at the actress or actor who is performing the sex act. Femdom features gay sex video BDSM scenes porn milf in which naked celebrities the dominant partner is female. A celebrity can fight the release in court to maintain deniability while still enjoying the career benefits. New York photographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. The term combines elements of the Freudian psychoanalytic fetish and the Marxist commodity fetish, and is used in the context of British, Spanish and French colonialism and imperialism and their aftereffects. The act may be carried out face to face, or head to tail, with the woman recommended to be on top if she has smaller breasts. Other fetish Bareback pornography features performers who are not wearing condoms.