Fisting may be performed with or without a partner. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. However the genre remains a very small proportion of the pornographic hentai videos DVD market; for example at porn retailer HotMovies. In some societies, the terms fox, plum, chick, or chicken are preferred. Reality Reality pornography refers to real or faked amateur encounters. Now facial cumshots are regularly portrayed in pornographic films, videos, magazines and internet web sites. Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place videos gays between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. Rough sex pornography is similar to pornography featuring sadomasochism, and typically features a Top who humiliates and/or degrades a Bottom while being physically violent towards them. Bukkake pornography usually depicts numerous men having sex with one woman, with multiple, usually 10 or more, men ejaculating on the female face. Enema pornography involves adults given enemas to others, often fake. As of 2010, they were reported to live together as a monogamous couple outside of their porn careers and want to continue working together for another 50 years. Greater economic and social freedom allowed them gradually to be able to determine how they could form relationships and families. It may involve sexual attraction to women who are pregnant or appear pregnant, attraction to lactation, or milf xxx attraction to particular stages of pregnancy such as impregnation or childbirth. Insertion in pornography features women inserting various odd objects into their anus or vaginas. There is also some evidence that pornography can be used to treat voyeurism. It is also often mixed with other fetishes in practice, such as voyeurism, denial, etc.