In some areas, there are laws stating it is not legally possible to consent to be killed, and elsewhere it may still be legally dubious . Erotic literature and pornographic films have been devoted to the sexual uses of glory holes. Unlike Yaoi, Bara is normally made by actual homosexual men, for homosexual men, and tends to focus on the more realistic obstacles and challenges that come with being homosexual in Japan. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely gay hentai Japanese genres known to western viewers. They cited the Internet and text messaging as common ways of organising meetings. Japanese rope bondage is distinguished by its use of specific katas and aesthetic rules. Fisting pornography features the insertion of an entire hand into a performer vagina or anus. See Gay-for-pay. It generally contains nudity or partial nudity in sexually suggestive situations. Erotic spanking is the act of spanking another person for the sexual arousal or gratification of either or both parties. Can also include auto-fellatio, or performing oral sex on oneself. Felching involves drinking recently ejaculated semen from the vagina or anus. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. Others involve partners who naturally have a significant difference in size. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility of the act itself. Jail/Prison/Police pornography involves people in police custody or inmates in jails or prisons in various sexual situations, such as strip searches or body cavity searches. A common way that these are gay movies depicted in a single scene is with one woman and two men performing together. These typically are leaked to the public via the Internet, with or without the celebrity consent. Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake.