Medical gay boy porn pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, and pelvic or gynecological ultrasounds. A facial is a term for the sexual activity in which a man ejaculates semen onto the face of one or more sexual partners. A person may be sexually penetrated multiple times simultaneously. Milking pornography features lactating women being milked or milf fuck milking themselves . Penetration may involve use of fingers, toes, sex toys, or penises. In the Diagnostic and Statistical Manual of Mental Disorders , published celebrity sex tapes by the American Psychiatric Association, it is classified under 302.89 – Paraphilia NOS and has no diagnostic criteria other than a general statement about paraphilias that says the diagnosis is made if the behavior, sexual urges, or fantasies cause clinically significant distress or impairment in social, occupational, or other important areas of functioning. Female masturbation involves the stroking or rubbing of a woman vulva, especially her clitoris, with an index or middle fingers, or both. Scat or brown pornography features defecation, manipulation of feces, or consumption of feces, in reality or fantasy; a well-known example is the 2 Girls 1 Cup video. Sadomasochism refers to the aspects of BDSM surrounding the exchange of physical or emotional pain. A woman can use a secondary vibrator, between the dildo and her genitals, to get pleasure from pegging. Creampie, also known as internal cum shot, and, in homosexual contexts, 3d hentai also known as breeding and seeding, is a slang term used in pornography to describe when a male ejaculates inside his partner vagina or anus. Production of such films was profitable, and a number of producers specialised in their production. HIV is among the infections that require such direct contact and is naked celebrities therefore very unlikely to be transmitted via mammary intercourse. In general, as compared to conventional relationships, BDSM participants go to great gay bear porn lengths to celebrity gossip negotiate the important aspects of their relationships in advance, and to take great care in learning about and following safe practices.