Jerk off instruction features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive. Diaper pornography involves performers wearing diapers, sometimes with an adult performer acting in the role of a caretaker. This may relate to fetishes such naked milf as voyeurism or cuckolding. Pornography in the early 2000s. Double Stuffed , Double Vaginal , or Double Anal pornography involves the penetration of one orifice by two penises or other objects. Lucky Pierre is slang for a person performing both receptive and insertive anal and/or vaginal sex simultaneously during a threesome, being positioned between the two partners. Saliva pornography involves salivation and saliva. The original definition of dogging – and which is still a closely related activity – is spying on couples having sex in a car or other public place. A somewhat controversial ejaculation control technique is to put pressure on the perineum, about halfway between 3d hentai the scrotum and the anus, just before ejaculating. Sex parties may be organized to enable people to engage in casual sexual activity or for swinging couples or people interested in group sex to meet, but any gathering where sexual activity is anticipated can be called a sex party. Terminology videos gays for roles varies widely within the various BDSM subcultures. English adopts and uses hentai as a genre of pornography by the commercial sale and marketing of explicit works under this label. The term lesbian is also used with regard to sexual identity or sexual behavior, regardless of sexual orientation, or as an adjective to characterize or associate nouns with female homosexuality or same-sex attraction. Emetophilia pornography involving vomiting and gagging. The concept of lesbian, to differentiate women with a shared sexual orientation, is a 20th-century construct.