Bisexual hamster mobile porn pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. Older names for a pornographic film include stag film, and blue movie. The name is a reference to gonzo journalism, in which the reporter is part of the event taking place. Rape pornography features performers simulating rape. Men may also rub or massage the glans, the rim of the glans, and the frenular delta. Sadomasochism is practiced in isolation relatively rarely, though some masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or as part of, masturbation. Women who perform in lesbian pornography often do not consider themselves lesbian or bisexual. The term soft crush refers to the more common fetish surrounding videos involving inanimate objects or small invertebrates being crushed, while the term hard crush refers to such videos involving larger animals with vertabrae, and arguably more pain-susceptible animals . As of 2013, little analysis of this paraphilia has been reported in medical literature. Pornography is often distinguished from erotica, which consists of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical videos gays act, so as to arouse quick intense reactions. Hardcore pornography is pornography that depicts penetration or extreme fetish acts, or both. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. A variant of A2M is ATOM where a performer inserts his penis directly from one recipient anus into a second recipient milf fuck mouth. Use of the agreed safeword is seen by some as an gay black explicit withdrawal of consent. In more vigorous forms of fisting, such as punching gay hentai or punchfisting, a fully clenched fist may be inserted and withdrawn slowly. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina.