Snuff pornography involves the actual death of any of the participants, consenting or otherwise, simulated death is not considered snuff. Fisting pornography features the insertion of an entire hand into a performer vagina or anus. Voyeurism: Seeing another urinate without the person knowledge either through video taping by a hidden camera, or by lurking in locations where people are urinating or are likely to gay twink porn have an urge to urinate. Another variant of reality pornography consists of normal couples that are filmed by professionals, in which case the only obvious distinction from amateur pornography is the higher quality of production, filming and editing. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur. Pornographic films present sexual fantasies and usually include erotically stimulating material such as nudity. Although pornography has usually focused on heterosexuality, due to the prevalence of the heterosexual orientation, explicit gay material has a long history as well, which reaches back to Greek antiquity, if not to prehistory. The term hentai is never used in this context in Japanese. It may be used as foreplay, or as an alternative to sexual penetration. When sexual activity is centered on one of the threesome, then the activity may be hentai movies described as a gang bang of the person. Squirt pornography involves women ejaculating. Watersports pornography features sexual activities horny milfs involving urine, such as golden showers. In human sexuality, a threesome is sexual activity that involves three people at the same time. 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. Animal masturbation has been observed in many species, both in the wild and in captivity. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs.