Likewise, Fox Broadcasting Company has also dedicated an entire evening programming block to adult animation programs, known as Animation Domination. What seems clear from the historical record is that much of the lesbian material in pornographic texts was intended for a male readership. Mammary intercourse is a sex act, performed as foreplay or as non-penetrative sex, that involves the stimulation of the male penis by the female breasts and vice versa. For some people, non-penetrative sex is the primary sexual activity of choice above all others. Patricia Hill Collins, an African-American writer, theorizes that this is derived from a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. It is also known colloquially as gushing or squirting, although these are considered to be different phenomena in some research publications. Most bisexual porn is made by gay hentai small production companies milf fuck rather than the major studios. Bestiality is illegal in many countries. The existence of such content in commercially available pornography is widely considered an urban legend. Barebacking usually refers to a conscious and deliberate choice to forgo condoms. In Japanese, this natural-fibre rope is known as asanawa; the Japanese vocabulary does not make a distinction between hemp and jute. Bondage pornography specializes in the depiction of sexual bondage or BDSM activities as photographs, stories, movies, or drawings. It has also been recommended videos gays as a form of foreplay or safer sex. For example, in Australia it is rated Refused Classification . Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. If dramatic skills are not involved, a performer in a porn film may also be called a model. They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located.