Yuri : Featuring two grown adult women in a homosexual/lesbian relationship. They may regard it as an enhancing element momporn of their sex lives or as their primary form of sexual activity. Point of view pornography is adult entertainment filmed to look as if the watcher were experiencing the sex act themselves. Masturbation is the self-sexual stimulation of the genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm. Cartoon pornography includes, but is not limited to, hentai and parody renditions of famous cartoons and comics. Creampie, also known as internal cum shot, and, in homosexual contexts, also known as breeding and seeding, is a slang term used in pornography to describe when a male ejaculates inside his partner vagina or anus. By comparison, gonzo pornography puts the camera right into the action, often with one or more of the participants both filming and performing sexual acts, without the usual separation between camera and performers seen in conventional porn and cinema. The Girls hot gay sex Gone Wild series is one example. This is commonly called double vaginal penetration or double stuffing. Some aspects of the research community distinguish between female ejaculation and what is colloquially known as squirting or gushing. The industry generally refers to such films as adult films, which is part of adult entertainment. If one person is hentai movies penetrated by two objects, it is generically called double penetration . It is geared towards heterosexual men, who most typically define a threesome as such. A lesbian is a female homosexual; a female who experiences romantic love or sexual attraction to other females. HIV is among the infections that require such direct contact and is therefore very unlikely to be transmitted via mammary intercourse. A study of 164 males in Finland from two SM clubs found that 18.2% had engaged in coprophilia; 3% as a sadist, 6.1% as a masochist, and 9.1% as both. 18% of heterosexuals and 17% of homosexuals in the study pool had tried coprophilia, showing no statistically significant difference between heterosexuals and homosexuals.