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. The films were financially successful, winning AVN Awards for the best selling pornographic nude milfs films of their year; however the events were effectively un-officiated hentai porn and the record breaking claims often misleading. Fisting involves the insertion of one partner entire hand into a vagina or the anal cavity. There is also some evidence that pornography can be used to treat voyeurism. Caro rejected that as being a necessary conclusion, stating that female fatty deposits on the hips improve individual fitness of the female, regardless of sexual selection. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. The gay bear porn Japanese sex industry uses the term Paizuri . Male masturbation may differ between males who have been circumcised and those who have not. High heel pornography involves women or men dressed in high heeled shoes. One or more of the participants may engage in autoerotic sexual activity, such as masturbation, possibly without physical contact with the other participants. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility of the act itself. However, sex researchers and adolescent health care professionals have found no evidence for the existence of rainbow parties, and as such attribute the spread of the stories to a moral panic. A variant of this is known as ATOM or ATOGM where the insertive partner removes his penis from one recipient anus and inserts it into a second recipient mouth. Reality Reality pornography refers to real or faked amateur encounters. The other is in the top of the box to expose their face. Exhibitionist pornography features performers, usually female exposing themselves in public and spans simple flashing to public sex.