Individuals who can change between top/dominant and bottom/submissive roles—whether from relationship to relationship or within a given relationship—are known as switches, though the term switch in this context is occasionally seen as derogatory and is rejected by many who might simplistically fit the definition. POV pornography involves camera angles designed to provide the viewer a view similar to that seen by one of the participants, whose face is never shown. Am Abend , one of the earliest pornographic films that have been collected at the Kinsey Institute for Research in Sex, Gender, and Reproduction, starts with a female masturbation scene. Clothed female, naked male is a genre of erotica featuring one or more nude men and one or more clothed women. Sex experts have praised various techniques that the performer can use during fellatio to increase their partner pleasure. In these cases, the appearance of an enlarged abdomen caused by obesity or overeating may be sufficient, or simply the suggestion of a protruding navel. Unlike the traditional
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definition of the term, in fetish usage a cuckold is complicit in their partner sexual infidelity and takes masochistic sexual pleasure in it. Others may also use vibrators and other sexual devices more commonly associated with female masturbation. Human urinal: An act common in the bondage sex community where a male or female slave will serve as a urinal for a dominant partner. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. Though the term anal sex most commonly means penile-anal penetration, sources sometimes use the term anal intercourse to refer exclusively to penile-anal penetration, and anal sex to refer to any form of anal sexual activity, especially between pairings as opposed to anal masturbation. In general, softcore pornography is pornography that does not depict explicit sexual activity, sexual penetration or extreme fetishism. Foot fetishism, foot partialism, foot worship, or podophilia is a pronounced sexual interest in feet.