Pornographic films are generally classified into gay sex video sub-genres which describe the sexual fantasy which the film and actors attempt to create. Related genres include: Amateur pornography originally referred only to pornography produced by amateurs but now also includes professionally made pornography designed to appear as if it were amateur. Fantasies of group sex are extremely common among both men and women, and group sex is a subgenre in pornographic films. Insertion in pornography features women inserting various odd objects into their anus or vaginas. First found in softcore movies and erotic thrillers, depictions big tit milf of lesbianism entered mainstream cinema in the 1980s. Currently, animated television series aimed at adults are some of the most popular and critically acclaimed forms of entertainment. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. A crush fetish is a fetish in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. Some productions are noted for sophisticated and/or experimental storytelling and animation techniques. Amateur porn has been called one of the most profitable and long-lasting genres of pornography. Heterosexual bareback sex, as opposed to sex with condoms, not only poses an increased risk of STIs, but for pregnancy as well. It is mutual consent that makes a clear legal and ethical distinction between BDSM and such crimes as sexual assault or domestic violence. Generally, interest differs between people, and gender depends on sexual orientation. 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. Foot fetishism, foot partialism, foot worship, or podophilia hentai movies is a pronounced sexual interest in feet. Many men who like trans partners of any variety, known as tranny chasers, do not necessarily identify as gay themselves.