When used as an alternative to penile-vaginal penetration, the goal may be to preserve virginity or to prevent pregnancy. Some people get sexual pleasure by inserting objects, such as urethral sounds, into the urethra , a practice known as urethral play or sounding. In Japanese, the term describes any type of perverse or bizarre sexual desire or act; it does not represent a genre of work. Testosterone discourages fat storage in these areas. The name was coined from the title gay hentai of the controversial book. In Japan, point of view pornography is referred to as hamedori . They may regard it as an enhancing element of their sex lives or as their primary form of sexual activity. 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. Pussing: British expression for an activity involving a consenting couple where the male partner watches the woman urinate otherwise undetected in a semi-public place, usually a toilet cubicle at a pub, hotel, restaurant, theatre/cinema, office, club etc. Types of anal sex can also be a part of lesbian sexual practices. If dramatic skills are not involved, a performer in a porn film may also be called a model. Examples of mentally gay fuck oriented practices are education games, during which the dominant requires certain forms of behavior from the submissive. Mutual masturbation, mutual manual stimulation of the genitals between partners, can be a substitute for sexual penetration. Evolutionary psychologists suggest that rounded buttocks may have evolved to be desirable trait because they provide a visual indication of the woman youth and fertility. On May 27, 2010 the television program The Doctors discussed the topic with dozens of teens, milf fuck parents, and professionals. The glans itself may widen and lengthen as the stimulation continues, becoming slightly darker in colour, while the gliding action of the foreskin reduces friction. 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.