A related term used in the genre is the term cougar, which implies an older woman as predator. Mutual masturbation foreplay The manual stimulation of each other genitals where the session eventually leads to sexual intercourse. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face. The purpose of this kind of agreement is primarily to encourage discussion and negotiation in advance, and then to document that understanding for the benefit of all parties. Such works have also often been subject to censorship and other legal restraints to publication, display or possession. 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. Cartoon pornography is the portrayal of illustrated or momsex animated fictional characters in erotic or sexual situations. The cover can have hinges or be a separate part. Ass to mouth is a slang term primarily used to describe the withdrawal of a penis from the receptive partner anus followed by the immediate insertion into the receptive partner mouth. As women, they face concerns separate from men. Some POV/gonzo porn sometimes breaks the strict point-of-view hentai videos convention. They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. The primary subjects of pornographic depictions are pornographic models, who pose for still photographs, and pornographic actors or porn stars, who perform in pornographic films. For some people, non-penetrative sex is the primary sexual activity of choice above all others. Contrary to the other two types, B/D does not define the Tops and Bottoms itself, and is used to describe the general activities with either partner being the receiver and the giver. Kurt Wild, who appeared as a bottom in Lucas Entertainment Gigolos, is gay sex video married to a woman and has three children. Voyeur pornography may also include shots of topless women on topless beaches who are unaware of the cameras but may legally be photographed due to the public setting.