Sexual relations between women have been illustrated as well as narrated, but much of the written material from the early modern period has been destroyed. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. Stimulating the prostate from outside, via pressure on the perineum, can be pleasurable as well. Usually that person prefers to stage the wetting so that his/her legs become soaked with urine. The term pearl necklace is used by some because the drops of semen deposited by the man resemble a necklace of translucent white pearls. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman having sex with a black man. A celebrity can fight the release in court to maintain deniability while still enjoying the career benefits. While anal sex is commonly associated with male homosexuality, research shows that not all gay males engage in anal sex and that it is not uncommon in heterosexual relationships. The first explicit pegging scene is believed to have been in the 1975 pornographic film The Opening of Misty Beethoven. The term BDSM dates back to 1969; however, the origin of the term BDSM is unclear mature milfs and is believed to have been formed either from joining the term B&D with S&M , or as a compound initialism from B&D, D&S , and S&M. Many fantasies include the macrophile shrinking before a normal sized woman or keeping his or her normal height while the partner grows in size. The term sadomasochism is derived from the words sadism and masochism . A homosexual threesome would involve either three men or three women. Participants who exert sexual control over their partners are known as dominants or tops while participants who take the passive, receiving, or obedient role are known as submissives or bottoms. It is also known colloquially as gushing or squirting, although these are considered to be different hentai porn phenomena in some research publications. Yaoi is anime or manga that features gay males . Real medical shots or videos hot gay sex may violate privacy laws in some countries.