The loose and direct camera work often includes tight shots of the genitalia, unlike some nude milfs traditional porn. Shotacon : Similar to Lolicon, this genre involves prepubescent or under-aged boys between the ages 6–12. Solo performances in gay pornography have been described in 1985 as either or both active and/or passive , whereas female solo performances are said to be exclusively passive . Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. Patricia Hill Collins, an African-American lesbian hentai writer, theorizes that this is derived naked celebrities from a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. Works in this genre may be considered adult for any number of reasons. Following World War II, during a period of social repression when governments actively persecuted homosexuals, women developed networks to socialize with and educate each other. Some are aroused from wetting their diapers, others like messing their diapers. Lying face down on a comfortable surface such as a mattress or pillow, the penis can be rubbed against it. Such works have also often been subject to censorship and other legal restraints to publication, display or possession. Other fetish Bareback pornography features performers who are not wearing condoms. Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting. The resulting consent and understanding is occasionally summarized in a written contract, which is an agreement gay cock of what can and cannot take place. Standing up, a chair, the gay male sex corner of an item of furniture, or even a washing machine can be used to stimulate the clitoris through the labia and clothing. Commenting on why there are not as many female macrophiles, psychologist Helen Friedman theorized that because women in most societies already view men as dominant and powerful, there no need for them to fantasize about it.