Hentai is the various forms of Japanese pornography, including H-manga, H-anime, and H-computer games. Softcore gay pornography also exists; it at one time constituted the genre, and may be produced as beefcake pornography for heterosexual female and homosexual male consumption. Such films continued to be produced but could only be distributed by underground channels. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between the scrotum and the anus, just before ejaculating. It is commonly depicted in pornography, but very rarely in mainstream cinema. Rough sex pornography is similar to pornography hot gay sex featuring sadomasochism, and typically features a Top who humiliates and/or degrades a Bottom while being physically anime hentai violent towards them. The term soft crush refers to the more common fetish surrounding videos involving inanimate objects or small invertebrates being crushed, while the term hard crush refers to such videos involving larger animals with vertabrae, and arguably more pain-susceptible animals . The consent and compliance for a sadomasochistic situation can be granted only by people who can judge the potential results. Bottom and submissive are widely recognized terms for those partner mature milfs in the relationship or activity who are, respectively, the physically receptive or controlled participants. It concludes these findings suggest that an explanation for fat admiration may be that FAs are rejecting sociocultural norms of attractiveness. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. The term Asiaphile is sometimes used to describe the same phenomenon as is yellow fever . In more vigorous forms of fisting, such as punching or punchfisting, a fully clenched fist may be inserted and withdrawn slowly. While bondage is a very popular variation within the larger field of BDSM, it is nevertheless sometimes differentiated from the rest of this field.