By Japanese law, the genitals of actors and actresses must be censored and up the mid-1990 so was the depiction of pubic hair. Interracial pornographic films have experienced an explosion in popularity, becoming one of the fastest-growing and biggest-selling genres. As of 2013, little analysis of this paraphilia has been reported in medical literature. A common way that these are depicted in a single scene is with one woman and two men performing together. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. Group sex can occur between people of all sexual orientations and genders. Now facial cumshots are regularly portrayed in pornographic films, videos, magazines and internet web sites. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing that crush films with larger animals give the entire group a bad label. Lesbian pornography made for women is usually made by women, and usually features women who identify as lesbian or bisexual. The term is a slang word that originated in the gay community and comes from the equestrian term bareback, which refers to the practice of riding a horse without a saddle. The term applies to the depiction of the act rather than the act itself, and so does not include live exhibitions like sex shows and striptease. There were also a very limited number of specialist fetish videos gay magazines which featured images of bondage, such as the famous Bizarre magazine published from 1946 to 1959 by the pioneering fetish photographer John Willie, and ENEG Exotique magazine, published 1956-1959. See Gay-for-pay. Body parts including fingers, tongue and penis may be used for anonymous oral, vaginal and/or anal intercourse. Boot fetishism is a sexual fetish dedicated to boots. Sex parties may be organized to enable people to engage in casual sexual activity or for swinging couples or people interested in group sex to meet, but any gathering where sexual activity is anticipated can be called a sex party.