Threesome can also refer to a love triangle, a three-way romantic relationship. Rainbow parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. Diaper pornography gay movies involves performers wearing diapers, sometimes with an adult performer acting in the role of a caretaker. Films with risqué content commenced to be produced soon after the invention of the motion picture in the 1880s. The term Asiaphile is sometimes used to describe the same phenomenon as is yellow fever . The Silent Duck, also called Duck-Billing, is the technique often used in which the person engaging in hand insertion shapes the hand to resemble a duck beak. A variant of A2M is ATOM where a performer inserts his penis directly from one recipient anus into a second recipient mouth. Sexual orientation Pornography features an increasing variety of combinations of actors by their sexual orientation such as lesbian, gay, bisexual, and transsexuals in addition to traditional heterosexual roles. Is also common of the furry genre. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. Women oriented pornography is sometimes referred to as sex positive pornography. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. Softcore gay pornography also exists; it at one time constituted the genre, and may be produced as beefcake pornography for heterosexual female and homosexual male consumption. Oral sex pornography frequently big tit milf features a person performing fellatio, and less frequently cunnilingus. 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. 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.