This type of pornography is almost exclusively hentai, as true hermaphroditic humans are not fertile and are not usually found in nature. In contrast, a celebrity may take the route of openly releasing the tape and benefit directly from royalties as well as indirectly from the publicity. Some pornographic films use an artificial semen substitute to simulate or enhance creampie shots. The queening stool is also related to a smotherbox, which also allows the person under the seat to be locked in place, restrained by the neck as in naked milf a set of stocks. See also Gay-for-pay. Lolita pornography that features actual teenage girls under the age of 18 is illegal in most countries and treated as child or youth pornography. Swinging can take place in various contexts, lesbian hentai ranging from a spontaneous sexual activity at an informal social gathering of friends to a regular social gathering in a sex club or residence. A heterosexual threesome may involve two men and a woman, or one man and two women - that is, two men having sex with a woman , or two women with a man. The term breast fetishism is also used to refer to cultural attention to female breasts and the 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. The fantasy is typically based around one or more larger beings dominating a smaller being. It has since become popular Mature Porn enough with couples to be discussed during an episode of Sex and the City. Such grounds and even the definition of pornography have differed in various historical, cultural, and national contexts. Among fetishists, the gay cock pose of reluctance— celeb gossip the victimization of the cuckold—is a major element of the paraphilia. 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. 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.