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 gaysex can engage in sexual activities with others as a recreational or social activity. BDSM is a variety of erotic practices involving dominance and submission, role-playing, restraint, and other interpersonal dynamics. Ass to mouth pornography shows the transfer of a performer penis from a second performer anus to that same second performer mouth in a single shot. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. As a result, little in history was documented to give an accurate description of how female homosexuality is expressed. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive. In milf fuck academic discourse, racial fetishism is a postcolonialist term found in the writings of authors such as Homi K. It is typically animated pornography, as the legal age to be featured in a pornographic film in Japan is 18. Sigmund Freud considered foot binding as a form of fetishism. Female ejaculation is the expulsion of fluid by the paraurethral ducts through and around the human female urethra during or before an orgasm. The name is a reference to gonzo journalism, gay hentai in which the reporter is part of the event taking place. A few extremely flexible males can reach and stimulate their penis with their tongue or lips, and so perform autofellatio. Sub-genres can also be classified into the characteristics of the performers or the type of sexual activity on which it concentrates, and not necessarily on the market to which each sub-genre appeals. The most common type of erotic spanking is administered on the bare buttocks, but can also be combined with bondage, in order to heighten sexual arousal and feelings of helplessness. If ejaculation is onto the other person face it can be called a facial.