Generally, interest differs gay twinks between people, hentai sex and gender depends on sexual orientation. Several hundred exclusively pegging films were produced, as well as twice as many bisexual and straight films with strap-on scenes. The buttocks in human females thus contain more adipose tissue than in males, especially after puberty. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle them back and forth. Actual upskirt or downblouse shots may violate privacy laws in some countries. 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. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive. This fetish sometimes originates from childhood memories of needing, or of seeing another needing, to urinate. Bhabha, Anne McClintock and Kobena Mercer. A common way that these are depicted in a single scene is with one woman lesbian milfs and two men performing together. If this is done using penises and/or strap-on dildos, this is sometimes called the sandwich or BigMac. The current record is held by Lisa Sparks who had sex with 919 men on October 16, 2004 in Warsaw, Poland as part of the Third Annual World Gangbang Championship and Eroticon 2004. Some BDSM practitioners prefer a code of behavior that differs from SSC and is described as risk aware consensual kink , indicating a preference for a style in which the individual responsibility of the involved parties is emphasized more strongly, with each participant being responsible for his or her own well-being. 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.