Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. Sometimes one or more fingers may be inserted into the vagina to stroke its frontal wall where the G-spot may be located. The phrase is commonly found on porn sites. Examples of heterosexual pornographic film series featuring creampies include Cream Filled Teens and Internal Cumbustion. 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 hentai sex reference to gonzo journalism, in which the reporter is part of the nude milfs event taking place. This can, however, redirect semen into the bladder . Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. Pro-am pornography is sub-genre of amateur pornography that refers to professionally made porn that features amateur actors/actresses, often appearing for the first time in a pornographic film. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. Mammary intercourse is a sex act, performed as foreplay or as non-penetrative sex, that involves the stimulation of the male penis by the female breasts and vice versa. Some may keep their hand stationary while pumping into it with pelvic thrusts in order to simulate the motions of sexual intercourse. Macrophilia is a fascination with or a sexual fantasy involving giants, more videos porno gay commonly expressed as giantesses . The term sadomasochism is derived from the words sadism and masochism . 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. The act may be carried out face to face, or head to tail, with the woman recommended to be on top if she has smaller breasts. There has been an increase in discussion and portrayal of masturbation in art, popular music, television, films, and literature.