As of 2013, little analysis of this paraphilia has been reported in medical literature. Female dominance refers to BDSM relationships and BDSM scenes in which the dominant partner is female. Bestiality is illegal in many countries. Macrophilia is a fascination with or a sexual fantasy involving giants, more hentai videos commonly expressed as giantesses . Women who perform in lesbian momsex pornography often do not consider themselves lesbian or bisexual. Women that take on the roles of the giantess within this fetish often find the practice to be empowering and enjoy being worshiped. The definition clash also appears with the English definition of yuri as any lesbian relationship, as opposed to its sexually explicit definition in Japan. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. 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. Adult animation is genre of animation geared towards adults and sometimes teens. The object hot gay sex or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. 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. Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates. Pro-am pornography is sub-genre of amateur pornography that refers to professionally made porn that features amateur actors/actresses, often appearing for the first time in a pornographic film. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex.