A crush fetish is a fetish in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. Some restrict a policy of panties/nipple tape for females and some allow full nudity with explicit sexual interaction allowed. Originating in Japan in the 1980s, the genre subsequently spread to North America and Europe, and crossed over into gay pornography. Participants usually derive pleasure from this, even though many of the practices—such as inflicting pain or humiliation or being restrained—would be unpleasant under other circumstances. Although interracial pornography theoretically can apply to depictions of sexual activity between performers of any different racial groups, the term is most commonly used for heterosexual sex acts between black and white performers. The person receiving anilingus is regarded as the passive partner in the act, and the person performing anilingus is the active partner. There may be more than two participants; both group sex and gang banging can be included. Bisexual pornography is a genre of pornography which most typically depicts one woman and two men who all perform sex acts on each other. While bondage is a very popular variation within the larger field of BDSM, it is nevertheless sometimes differentiated from the rest of this field. Heterosexual bareback sex, as opposed to sex with condoms, not only poses an increased risk of STIs, but for pregnancy momporn as well. Matsuo used amateur actresses in his videos, and gay bear porn he usually traveled to their hometowns for the filming. Since at least 1973, it has also been used to refer to a sexually attractive young woman. 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. The consent and compliance for a sadomasochistic situation can be granted only by people who hentai sex can judge the potential results.