Along with the penis, the scrotum is sensitive and considered to be an erogenous zone. Twink pornography features younger performers, big tit milf and usually features young men under 30 who identify as gay or bisexual. Bondage is usually, but not always, a sexual practice. Fistees who are more experienced may take two fists . Yiff or Yiffy pornography features Furry or anthropomorphic animals in an erotic or sexual context. Arousal may be triggered by seeing the body movements or facial expressions of that person. Rape itself is a crime in many countries. Cum-shot pornography features a collection of male ejaculation scenes. In places where non-monogamous sex is taboo or illegal, group sex may take place in private or clandestine locations including homes, hotel rooms, or private clubs. There is also some evidence that pornography can be used to treat voyeurism. Fisting may be performed with or without a partner. POV pornography involves camera angles designed to provide the viewer a view similar to that seen by one of the participants, whose face is never shown. Other forms of anal sex include fingering, the use of sex toys for anal penetration, oral sex performed on the gaysex anus , and pegging. Consent is the most important criterion here. It generally contains nudity or partial nudity in sexually suggestive situations. In some areas, there are laws stating it is not legally possible to consent to be killed, and elsewhere it may still be legally dubious . These typically are leaked to the public via the Internet, with lesbian hentai or without the celebrity consent. Voyeur or peeping Tom pornography is usually more staged with the subjects aware of the cameras, sometimes openly including this exhibitionist awareness. See Gay-for-pay. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. Others involve partners who naturally have a significant difference in size. Spanking or whipping pornography involves spanking or whipping, generally of the buttocks, with the hand or with other objects such as belts, switches, paddles, brushes, or whips.