Real enema shots or videos of true medical situations may violate privacy laws in some countries. Actual upskirt or downblouse shots may violate privacy laws in some countries. Often, strong views are expressed with regard to anal sex; it is controversial in various cultures, especially with regard to religion, commonly due to prohibitions against anal sex among gay men or teachings about the procreative purpose of sexual activity. The anus has a relatively high concentration of nerve endings and can be an erogenous zone, and the receiver may receive pleasure from external anal stimulation. By Japanese law, the genitals of actors and actresses must be censored and up the mid-1990 so was the depiction of pubic hair. Klaw ran an international mail-order business out of his store, Movie Star News, selling cheesecake pinups and bondage/spanking photos. The term hentai is never used in this context in Japanese. These scenes may either have the cameraman directly engaging in sex or merely filming others having sex. Animal anime hentai masturbation has been observed in many big tit milf species, both in the wild and in captivity. This may relate to fetishes such as voyeurism or cuckolding. A few extremely flexible males can reach and stimulate gay twink porn their penis with their tongue or lips, and so perform autofellatio. Mutual masturbation is a sexual act where two or more people stimulate themselves or one another sexually, usually with the hands. There were also a very limited number of specialist fetish magazines which featured images of bondage, such as the famous Bizarre magazine published from 1946 to 1959 by the pioneering fetish photographer John Willie, and ENEG Exotique magazine, published 1956-1959. Advocates of RACK argue that SSC can hamper discussion of risk because no activity is truly safe, and that discussion of even low-risk possibilities is necessary for truly informed consent. Jerk off instruction features a performer encouraging or instructing the viewer to masturbate, often culminating in a countdown at the end of which the viewer is invited to induce orgasm.