What seems clear from the historical record is that much of the lesbian material in pornographic texts was intended for a male readership. Patricia Hill Collins, an African-American writer, theorizes that this is derived from a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. A 2009 study found that heterosexual male fat admirers preferred females that were clinically overweight and rated both overweight and obese women more positively than slighter individuals. Reality pornography is a genre of pornography where staged scenes, usually shot in cinéma vérité fashion, set up and precede sexual encounters. Contrary to the other two types, B/D does not define the Tops and Bottoms itself, and is used to describe the general videos porno gay activities with either partner being the receiver and the giver. Some anthropologists and sociobiologists believe that breast fetishism derives from the breasts similarity to buttocks, but instead provide sexual attraction from the front of the body. The introduction of the home video and Internet saw a boom in the worldwide porn industry that generates billions of dollars annually. Clothed female, naked male pornography features naked men 3d hentai and clothed women; typically, the women humiliate and abuse the men or perform fellatio and/or handjobs on the men. Other fetish Bareback pornography features performers who are not wearing condoms. New York pho celebrity sex videos tographer Irving Klaw also published illustrated adventure/bondage serials by fetish artists Eric Stanton, Gene Bilbrew, Adolfo Ruiz and others. These actors often play the top roles but this is not always the case, such as with Kristen Bjorn and some Bel Ami models. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. Use of the agreed safeword is seen by some as an explicit withdrawal of consent. The loose and direct camera work often includes tight shots of the genitalia, unlike some traditional porn. Pornography may horny milfs fall into more than one genre.