Reflective of its views on sexuality and culture, Japanese pornography delves into a wide spectrum of heterosexual, homosexual, and transgender sexual acts in addition to unique fetishes and philias. A variation on this is to place the fingers and thumb on the penis as if playing a flute, and then shuttle momsex them back and forth. Such explicit sexual interaction is seen only rarely in public play spaces, and it is sometimes specifically banned by the rules of a party or playspace. Actual upskirt or downblouse shots may violate privacy laws in some countries. Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates. Though there have been numerous gang bang pornographic films since the 1980s, they usually hot gay sex involved no more than half a dozen to a dozen men. Transsexual pornography is a genre of pornography. Actual spying may violate privacy and/or trespassing laws in many countries. Some may keep their hand stationary while pumping into it with pelvic thrusts in order to simulate the motions of sexual intercourse. Real medical shots or videos may violate privacy laws in some countries. A male voyeur is commonly labeled Peeping Tom, a term which originates from the Lady Godiva legend. Femdom features BDSM scenes in which the dominant partner is female. Women porn is often produced by women and aimed specifically at the female market - rejecting the view that men are turned on by porn but women only by a box of chocolates. Depictions of male and female masturbation are common in pornography, including gay pornography. Diaper pornography involves performers wearing diapers, sometimes with an adult performer acting in the role of a caretaker. BDSM communities generally welcome anyone with a non-normative streak who identifies with the community; this may include cross-dressers, extreme body mod enthusiasts, animal players, latex or rubber aficionados, and others. The wife who anime hentai enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive.