Cartoon pornography is the portrayal of illustrated or animated fictional characters in erotic or sexual situations. For some people, non-penetrative sex is the primary sexual activity of choice above all others. Mutual masturbation, mutual manual stimulation of the genitals between partners, can be a substitute for mature milfs sexual penetration. The activity is done by itself or as a part of or prelude to other activities which many times involve sex. As a form of non-penetrative sex, it can be done for its own enjoyment or as foreplay. The resulting gay movies consent and understanding is occasionally summarized in a written contract, which is an agreement of what can and cannot take place. In Japanese, the term describes any type of perverse or bizarre sexual desire or act; it does not represent a genre of work. Exhibitionism: Becoming noticeably desperate or wetting oneself with the express purpose of being seen by strangers. 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 a genre of anime and manga pornography. Top and dominant are widely recognized for hentai videos those partner in the relationship or activity who are, respectively, the physically active or controlling participants. 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. Macrophilia is a fascination with or a sexual fantasy involving giants, more commonly expressed as giantesses . Clothed male, naked female is one-sided female nudity in which one or more females are nude while one or more men are clothed. In POV porn, the shooting style is generally similar to gonzo pornography, with the person receiving sexual gratification holding the camera him or herself—aiming it down at the actress or actor who is performing the sex act.