Sadism describes sexual pleasure derived by inflicting pain, degradation, humiliation on another person or causing another person to suffer. Many times a top actor will then be sought as a bottom and the debut is often treated as a notable event or even its own release. Female masturbation involves the stroking or rubbing of a woman vulva, especially her clitoris, with gay sex video an index or middle fingers, or both. Before the enforcement of the Hays Code, some cartoon shorts contained humor that was aimed at adult audience members rather than children. The introduction of the home video and Internet saw a boom in the worldwide porn industry that generates billions of dollars annually. They may be noted for using risqué themes, graphic violence, sexuality or black comedy in a manner that is unsuitable for younger audiences. By comparison, gonzo pornography puts the camera right into the action, often with one or more of the participants both filming and performing sexual acts, without the usual separation between camera and performers seen in conventional porn and cinema. Men with men Gay pornography is usually male homosexual pornography, acts depicted typically include anal or oral sex. The two sets of people involved often meet either randomly or arrange to meet up beforehand over the Internet. The fantasy is typically based around one or more naked milf larger beings dominating a smaller being. Others consider the position to involve the man squatting over his reclined partner while the testicles are repeatedly raised and lowered into the mouth. A threesome is also depicted gay hentai with one woman and two men who all perform sex acts on each other . A spanking may be carried out with the use of a bare or gloved hand, or with any of a variety of implements, including a paddle, strap, hairbrush, feather duster or belt. Pornographic films are produced and supplied on a variety of media, depending on demand and the technology available, including traditional film stock in various formats, video for home viewing, DVD, Internet download, cable TV and other media.