The speed of the hand motion will vary from person to person, although it is not uncommon for the speed to increase as ejaculation nears and for it to decrease during the ejaculation itself. Masturbation involves touching, pressing, rubbing or massaging a person genital area, either with the fingers or against an object such as a pillow; inserting fingers or an object into the anus ; and stimulating the penis or vulva with an electric vibrator, which may also be inserted into the vagina or anus. Buck Angel is the best-known actor in this genre. Seconds after being deposited onto the face, the semen thickens, before liquefying 15–30 minutes later. The fundamental principles for the exercise of BDSM require that it should be performed with the informed consent of all involved parties. Gonzo porn is influenced by amateur pornography, and it tends to use far fewer full-body/wide shots in favor of more close-ups . Can also include auto-fellatio, or performing oral sex on oneself. These typically are leaked to the public via the Internet, with or without the celebrity consent. The stimulation may involve hands, fingers, videos gays everyday objects, sex toys or combinations of these. In straight pornography, intercourse is often followed by a facial, hentai porn pearl necklace or other visible ejaculation. Also see POV. In some areas, there are laws stating it is not legally possible to consent to be killed, and elsewhere it may still be legally dubious . 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. Unlike Yaoi, Bara is normally made by actual homosexual men, for homosexual men, and tends to focus on the more realistic obstacles and challenges that come with porn milf being homosexual in Japan. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. Some productions are noted for sophisticated and/or experimental storytelling and animation techniques.