Watersports pornography features nude milfs sexual activities involving urine, such as golden showers. Consent is the most important criterion here. Big Beautiful Woman is a euphemism for an overweight woman and is frequently used gay sex video in the context of fat fetishism. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur. Group sex can occur between people of all sexual orientations and genders. For other scenes, particularly in established relationships, a safeword may be agreed to signify a warning rather than explicit withdrawal of consent; and a few choose not to use a safeword at all. Enema pornography involves adults given enemas to others, often fake. Group sex is sexual behavior involving more than two participants. Unlike the traditional definition of the term, in fetish usage a cuckold is complicit in their partner sexual infidelity and takes masochistic sexual pleasure in it. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. The work of Bruce Seven has been called reality porn, due to his lack of using scripts and asking his performers to act naturally in their own character. Fisting pornography features the insertion of an entire hand into a performer vagina or anus. Strictly speaking, bondage means binding the partner by tying their appendages together; for example, by the use of handcuffs or by lashing their arms to an object. Others may also use vibrators and other sexual devices more commonly associated with female masturbation. The term lesbian is also used with regard hentai sex to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. Some techniques which may work for one individual can be difficult or uncomfortable for another. The phrase is commonly found on porn sites.