Bear features a combination of middle-aged, hairy or overweight males. Cum shots typically do not appear in girl-girl scenes and orgasm is normally implied by utterances, cinematic conventions, or body movement. Such ejaculation can be done by mammary intercourse, or masturbation over the other person, or result from the withdrawal of the penis from a partner mouth as he is ejaculating following fellatio, irrumatio, or intercourse. Works in this genre may explore philosophical, political or social issues. Pornographic films are typically categorized as either softcore or hardcore pornography. Spanking can be administered gay sex video in a number of spanking positions. Clothed female, naked male pornography features naked men and clothed women; typically, the women humiliate and abuse the men or perform fellatio and/or handjobs on the men. In Japan, point of view pornography is referred to as hamedori . Bukkake pornography involves a performer, usually porn milf female, onto whom several men or women ejaculate, usually on the face. Ass to mouth is a slang term primarily used lesbian hentai to describe the withdrawal of a penis from the receptive partner anus followed by the immediate insertion into the receptive partner mouth. Foot fetishism has been defined as a pronounced sexual interest in the feet or footwear. Lying face down one may use the hands, one may straddle a pillow, the corner or edge of the bed, a partner leg or some scrunched-up clothing and hump the vulva and clitoris against it. Works in this genre may be considered adult for any number of reasons. Both sexes sometimes apply lubricating substances to intensify sensation. Standing up, a chair, the corner of an item of furniture, or even a washing machine can be used to stimulate the clitoris through the labia and clothing. Some people masturbate by using machines that simulate intercourse. 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.