Reflective of its views on sexuality and culture, Japanese pornography delves into a wide spectrum of heterosexual, homosexual, and transgender sexual acts in addition to unique fetishes and philias. A variation on this is to place anime hentai the fingers and thumb on the penis as if playing a flute, and then shuttle them back and forth. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. Is also common of the furry genre. The object or situation of interest is called the fetish; the person who has a fetish for that object/situation is a fetishist. It spawned numerous videos porno gay sequels, several of which won adult film awards. Although pornography has usually focused on heterosexuality, due to the prevalence of the heterosexual orientation, explicit gay material has a long history as well, which reaches back to Greek antiquity, if not to prehistory. The rise of the Internet in the late 1990s and early 2000s similarly changed the way pornography film was distributed and furthermore complicated the censorship regimes around the world and the legal prosecution of obscenity. Transsexual pornography is a genre of pornography. The reverse of this, in which nude women interact with clothed men, is called Clothed male, naked female . Pornography may be presented in a variety of media, including books, magazines, postcards, photographs, sculpture, drawing, painting, animation, sound recording, film, video, and video games. 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 milf fuck group a bad label. Emetophilia pornography involving vomiting and gagging. The Silent Duck, also called Duck-Billing, is the technique often used in which the person engaging in hand insertion shapes the hand to resemble a duck beak. It is commonly depicted in pornography, but very rarely in mainstream cinema. Hentai is the various forms of Japanese pornography, including H-manga, H-anime, and H-computer games.