The naked celebrities industry generally refers to such films as momporn adult films, videos porno gay which is part of adult entertainment. Today, religions vary in their views of masturbation; some view it as a spiritually detrimental practice, some see it as not spiritually detrimental, and others take a situational view. 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. It is the most common form of sexual fetishism for otherwise non-sexual objects or body parts. Reading or viewing pornography, sexual fantasy or other erotic stimuli may lead to a desire for sexual release such as by masturbation. Some videos gays are aroused from wetting their diapers, others like messing their diapers. The term comes from the French lesbian hentai voyeur, one who looks. The resulting consent and understanding is occasionally summarized in a written contract, which is an agreement of what can and cannot take place. The term breast fetishism is also used to refer to cultural attention to female breasts and the latest celebrity news sexuality they represent, with debate continuing as to whether the modern widespread fascination with breasts among heterosexual males in western societies is a sexual fetish. Clothed male, naked female is one-sided female nudity in which one or more females are nude while one or more men are clothed. The purpose of this kind of agreement is primarily to encourage discussion and negotiation in advance, and then to document that understanding for the benefit of all parties. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. Many transgender people regard the term shemale as offensive, arguing that it mocks or shows a lack of respect towards the gender identity and gender expression of transgender individuals; in this view, the term emphasizes the biological sex of a person and neglects their gender. Some people masturbate by using machines that simulate intercourse.