The term is typically used by the cinematographer within the narrative framework of a pornographic film, and since the 1970s has become a leitmotif of the hardcore genre. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot gay cock may be located. In the gay pornography industry, which uses amateurs as well as professional actors, the term gay-for-pay refers to actors labeled or believed to be straight but who engage in same-sex sexual activities for money. Cuckolding can also be mixed with other non-monogamous naked milf relationship arrangements with which it has substantial overlap such as Swinging, wife-swapping, open relationships, and polyamory, etc. Examples of mentally oriented practices are education games, during which the dominant requires certain forms of behavior from the submissive. The niche popularity grew significantly in the latter half of the first decade of the 2000s. In S/M, the Sadist is usually the Top and the Masochist the Bottom, but these roles are frequently lesbian hentai more complicated or jumbled . Concerted deployed sexual rejection exercised on the partner can be an aspect of Dominance and Submission as well. Arcane or occult pornography involves sexualized situations with an occult or magical tone or performers who costume themselves in keeping with the theme, for example, a male performer dressed as a wizard. Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. These actors often play the top roles but this is not always the case, such as with Kristen Bjorn and some Bel Ami models. For example, in Australia it is rated Refused Classification . Real medical shots or videos may violate privacy laws in some countries. Jerk off instruction features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm.