Especially popular in post-World War 2 Japanese culture. Mutual masturbation can be practiced by males or females in pairs or groups with or without actually touching another person as indicated by the following examples of contact versus non-contact scenarios: Non-contact mutual masturbation Two people masturbating in the presence of each other but not touching. It may involve sexual attraction to women who are pregnant or appear pregnant, attraction to lactation, or attraction to particular stages of pregnancy such as impregnation or childbirth. 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 gaysex Willie, and ENEG Exotique magazine, published 1956-1959. Body parts including fingers, tongue and penis may be used for anonymous oral, vaginal and/or anal intercourse. One or more of the participants may engage in autoerotic sexual activity, such as masturbation, possibly without physical contact with the other participants. Male masturbation may differ between males who have been circumcised and those hentai porn who have not. These agreements are binding in the sense that lesbian milfs the parties have the expectation that the negotiated rules will be followed. Lesbianism has been a theme in erotic art since at least the time of ancient Rome, and many regard depictions of lesbianism to be erotic. Pornographic films present sexual fantasies and usually include erotically stimulating material such as nudity. Transsexual pornography features transwomen performers, who typically have male genitalia and augmented female breasts . Simultaneous penetration of the mouth and either the vagina or anus. The higher pay scale and profile within a production often leads to group scenes where a straight actor only tops. Facial cum shots are currently regularly portrayed in pornographic films and videos, often as a way to close a scene. The stimulation may involve hands, fingers, everyday objects, sex toys or combinations of these.