Diaper fetishism, nappy fetishism or diaperism, is a sexual fetish in which a person feels a desire to wear or use diapers. The name was coined from the title of the controversial book. Today, pornographic films can be sold or rented on DVD, shown through Internet and special channels and pay-per-view on cable and satellite, and in adult theaters. In some creampie films, both gay and straight, intercourse and internal ejaculation gay fuck are followed by performers licking up the semen that has dripped from their bodies. Threesome or 3some pornography features naked milf one man and two hentai porn women . Reading or viewing pornography, sexual fantasy or other erotic stimuli may lead to a desire for sexual release such as by masturbation. Real school shots or videos which are sexualized may violate privacy laws in some countries. Some masturbate only using pressure applied to the clitoris without direct contact, for example by pressing the palm or ball of the hand against underwear or other clothing. Milking pornography features lactating women being milked or milking themselves . Felching is a sexual practice involving the act of orally sucking semen out of the vagina or anus of one partner. 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 the other, usually through kissing. Clothed male, naked female is one-sided female nudity in which one or more females are nude while one or more men are clothed. Unlike the usual power neutral relationships and play styles commonly followed by couples, activities and relationships within a BDSM context are often characterized by the participants taking on complementary, but unequal roles; thus, the idea of informed consent of both the partners becomes essential. Breeding is sometimes followed by felching, which involves sucking the semen from the partner anus. This genre also features male-on-male fellatio through a small hole made in a bathroom divider.