The mature milfs concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct. Unlike erotic films, pornographic films contain explicit sexuality anime hentai and naked celebrities do not claim any artistic merit. It is suggested that much of the obscurity and the uncertainties gaysex about female ejaculation are related to mixing up these two phenomena. Boot fetishism is a sexual fetish dedicated to boots. A celebrity may allow such a recording to surface willingly, as part of a publicity stunt. However, the tradition of bondage magazines continues in the form of art books of bondage photographs, published by mainstream publishers such as Taschen. Such explicit sexual interaction is seen only rarely in public play spaces, and it is sometimes specifically banned by the rules of a party or playspace. Each participant may engage in any type of sex acts with one or both of the others, such as vaginal, anal or oral sex or mutual masturbation. This fetish sometimes originates from childhood memories of needing, or of seeing another needing, to urinate. Examples include the Girls Gone Wild and Girls Who Like Girls Series. In September 2003 the BBC reported on the new dogging craze. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Lucky Pierre is slang for a person performing both receptive and insertive anal and/or vaginal sex simultaneously during a threesome, being positioned between the two partners. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. In more vigorous forms of fisting, such as punching or punchfisting, a fully clenched fist may be inserted and withdrawn slowly. When sexual activity is centered on one of the threesome, then the activity may be described as a gang bang of the person.