The name is a reference to gonzo journalism, in which the reporter is part of the event taking place. This industry employs thousands of performers along with support and production staff. It is also followed by dedicated industry publications and trade groups as well as the mainstream press, private organizations , government agencies, and political organizations. Interactive pornography, available in gay sex video CD-ROM and DVD format, allows the viewer to select the particular acts performed at any one time, sometimes with the camera providing a first person view. Mammary intercourse is known as titty-fucking, titfuck, or a titjob in the United States, as well as tit wank or French fuck in the United Kingdom - the latter term dating back to the 1930s; while a more jocular equivalent is a trip down mammary lane. Rape pornography features performers simulating hentai videos rape. The existence of such content in commercially available pornography is widely considered an urban legend. Lying face down on a comfortable horny milfs surface such as a mattress or pillow, the penis can be rubbed against it. Women oriented pornography is sometimes referred to as sex positive pornography. There are number of types of sex parties: Swinger party/gathering A swinger party or partner-swapping party is a gathering at which individuals or couples in a committed relationship can engage in sexual activities with others as a recreational or social activity. Pornographic films are typically categorized as either softcore or hardcore pornography. Incest itself is largely taboo, and is a crime in many countries. Threesome can also refer to a love triangle, a three-way romantic relationship. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. The use of the word creampie to describe such scenes originated in U. Even though the performers who perform in these films typically appear on many reality websites within a short span of time, most of these websites claim that each of them is an amateur.