The activity is done by itself or as a part of or prelude to other activities which many times involve sex. In POV porn, the shooting style is generally similar to gonzo pornography, with the person receiving sexual gratification holding the camera him or herself—aiming it down at the actress or actor who is performing the sex act. John Stagliano is considered to have started the gonzo pornography genre with his Buttman series of films. Snowballing or snowdropping is the human sexual practice in which one person takes someone else semen into his or her mouth and then passes it to the mouth of the other, usually through kissing. A sex party is a gathering at which sexual activity takes place. 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. Solo performances in gay pornography have been described in 1985 as either or both active and/or passive , whereas female solo performances are said to be exclusively passive . Concerted deployed sexual rejection exercised on the partner can be an aspect of Dominance and Submission as well. Compensating elements of the total dominance and submission are care and devotion complementing one another, thus facilitating stable relationships. Throughout history, women have not had the same freedom or independence to pursue homosexual relationships as men, but neither have they met the same harsh punishment as homosexual men in some societies. Most bisexual porn is made by small production companies rather than the major gay cock studios. Other fetish Bareback pornography features performers who are not wearing condoms. Likewise, Fox Broadcasting Company has also dedicated an entire evening programming block to adult animation programs, known as Animation Domination. Content featuring male bisexuality has been a growing trend since the advent of internet pornography. For much of the history hentai porn of cinema and television, lesbianism was considered taboo, though since the 1960s it has increasingly become a genre in mature milfs its own right.