A large part of the popularity of these videos is seeing how regular and normal the girls are in real-life. Not all crush fetishists are that extreme! Masturbation has been depicted in art since prehistoric momsex times and is mentioned videos gays and discussed in very early writings. Participants usually derive pleasure from this, even though many of the practices—such as inflicting pain or humiliation or being restrained—would be unpleasant under other circumstances. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. The stimulation may involve hands, fingers, everyday objects, sex toys or combinations of these. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility of the act itself. It explores the more mental aspect of BDSM. Buck Angel is the best-known actor in this genre. Can also include auto-fellatio, or performing oral sex on oneself. Interracial pornography typically employs ethnic and racial stereotypes in its depiction of performers and many of interracial pornographic films still include racial stereotypes, although the segregation of actors by race has diminished considerably. 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. Spanking or whipping pornography involves spanking or whipping, generally of the buttocks, with the hand or with other objects such as belts, switches, paddles, brushes, or whips. The higher pay scale and profile within a production often leads to group scenes where a straight actor only tops. After the prerequisite level of sexual stimulation has been achieved, and ejaculation becomes imminent, the male will position his hentai sex penis so that the semen discharged will be deposited onto his partner face. The exact source and nature of the fluid continue to be a topic of debate among medical professionals, which is also related to doubts over the existence of the G-Spot.