Gay-for-pay describes male or female actors, pornographic stars, or sex workers who self-identify as heterosexual but who are paid to act or perform as homosexual professionally. Oral sex pornography frequently features a person performing videos gays fellatio, and less frequently cunnilingus. Pornography may be presented in a variety of media, including books, magazines, postcards, photographs, sculpture, drawing, nude milfs painting, animation, sound recording, film, video, and video games. In academic discourse, racial fetishism is a postcolonialist term found in the writings of authors such as Homi K. 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. In 1988, a sex tape caused significant damage to Rob Lowe career. Fisher said that perhaps, the fleshy, rounded buttocks attracted males during rear-entry intercourse. Hardcore pornography is pornography that depicts penetration or extreme fetish acts, or both. Is also common of the furry genre. Sigmund Freud considered foot binding as a form of fetishism. Often, strong views are expressed with regard to anal sex; it is controversial in various cultures, especially with regard to religion, commonly due to prohibitions against anal sex among gay men or teachings about the procreative purpose of sexual activity. Most bisexual porn is made by small production companies rather than the major studios. Animal masturbation has been observed in many species, both in the wild and in captivity. Double penetration of the vagina, anus and mouth, can involve: Simultaneous penetration of the anus by two penises or other objects. It is also known colloquially as gushing or squirting, hentai sex although these are considered to be different phenomena in some research publications. Bondage websites and bondage imagery in mainstream pornography As of 2003, specialist bondage magazines were mostly displaced by the availability of bondage material on the World Wide Web, and the presence of bondage imagery in mainstream pornographic magazines such as Nugget and Hustler Taboo magazine.