Locks may be used to emphasize the submissive position or the submissive hands may be fastened above his head to the box. Mammary intercourse has sometimes been considered a perversion. To avoid soreness from this resulting friction, some may prefer to use a personal lubricant, masturbation cream or saliva during masturbation. The volume of semen that is ejaculated depends on several factors, including the male health, age, degree of sexual excitement, and the time since his last ejaculation. Some POV/gonzo porn sometimes breaks the strict point-of-view convention. In these research publications, it is suggested that real female ejaculation is the release of a very scanty, thick, and whitish fluid from the female prostate, while the squirting or gushing shown frequently in pornography is a different phenomenon, the expulsion of clear and abundant fluid, which has been shown to be a diluted fluid from the urinary bladder. Internationally, hentai is a catch-all term to describe big tit milf a genre of anime and manga pornography. Lying face down one may use the hands, one may straddle a pillow, the corner or edge of the bed, a partner leg or some scrunched-up clothing and hump the vulva and clitoris against it. Reality pornography is a genre of pornography where staged scenes, usually videos porno gay shot in cinéma hentai videos vérité fashion, set up and precede sexual encounters. Breast fetishism is a paraphilic sexual interest focused on female breasts . Patricia Hill Collins, an African-American writer, theorizes that this is derived from a stereotype that those of black descent are promiscuous, and their buttocks are objectified by porn as a result. The slave is usually strictly forbidden from placing their lips directly on the body of the dominant so the practice routinely involves them receiving much of the spray all over their face, hair and body, however, another way of doing this that applies mostly to male dominants, is to place the mouth on the head of the penis and drink the urine as it is released.