A related term used in the genre is the term cougar, hentai sex which implies an older woman as predator. The mouth was the most common area to be ejaculated upon. Some aspects of the research community distinguish between female ejaculation and what is colloquially known as squirting or gushing. Among fetishists, the pose of reluctance—the victimization of the cuckold—is a major element of the paraphilia. By comparison, gonzo pornography puts the camera right into the action, often with one or more of the participants both filming and performing sexual acts, without the usual separation between camera and performers seen in conventional porn and cinema. Crush pornography features objects being crushed by an actress or actor, who generally plays an overtly dominant role. Diaper fetishism, nappy fetishism or diaperism, is gay boy porn a sexual fetish in which a person feels a desire to wear or use diapers. 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. In recent years, however, many celebrities have benefited from the publicity resulting porn milf from the release of a sex tape. Yaoi male homosexual hentai designed to appeal to women and men. Such documents have not been recognized as being legally binding, nor are they intended to be. Yuri : Featuring two grown adult women in a homosexual/lesbian relationship. Particularly, some pornography in this genre features butch women, who are almost never seen in mainstream pornography. Lolita pornography that features actual teenage girls under the age of 18 is illegal in most countries and treated as child or youth pornography. Special forms include erotic roleplay like ageplay, in which a difference in age, either real or enacted, formulates the background; or petplay. Some may pursue fantasies that are concerned with the circumstances in which a subject may give birth, or to the conditions to which the pregnant subject may find themselves acting upon, such as approaches to mobility, sleeping, and dressing.