Bear features a combination of middle-aged, hairy or overweight males. Lolita pornography features women who are 18 years old or slightly older, who pretend to be underage teen girls. The name was coined from the title of the controversial book. 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. Snowballing or snowdropping is the human sexual practice in which one person takes someone else semen into his or her mouth and then passes it to the mouth of porn milf the other, usually through kissing. 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. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men. Women with women Main article: Lesbianism in erotica: Lesbianism in contemporary pornography Lesbian or girl-girl pornography features women engaged in sex together, but is typically aimed at a male audience. Interactive pornography, available in gay twinks CD-ROM and DVD format, allows the viewer lesbian hentai to select the particular acts performed at any one time, sometimes with the camera providing a first person view. Hamedori is a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. Although there may be no connection between coprophilia and sadomasochism , the limited data on the former comes from studies of the latter. Mutual masturbation, mutual manual stimulation of the genitals between partners, can be a substitute for sexual penetration. The Silent Duck, also called Duck-Billing, is the technique often used in which the person engaging in hand insertion shapes the hand to resemble a duck beak. For much of the history of cinema and television, lesbianism was considered taboo, though since the 1960s it has increasingly become a genre in its own right.