Hentai is the various forms of Japanese pornography, including H-manga, H-anime, and H-computer games. After the prerequisite level of sexual stimulation has been achieved, and ejaculation becomes imminent, the male will position his penis so that the semen discharged will be deposited onto his partner face. This may relate to fetishes such as voyeurism or cuckolding. While most tentacle erotica is animated, there are also a few live-action movies. 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. Group sex is sexual behavior involving more than two participants. Each participant may engage in any type of sex acts with one or both of the others, such as vaginal, anal or oral sex or mutual masturbation. Transsexual porn mature milfs star Wendy Williams has stated that transsexual porn is classified as Straight Specialty. The related term twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. Bhabha, Anne McClintock and Kobena Mercer. Body parts including fingers, tongue and penis may be used for anonymous oral, vaginal and/or anal intercourse. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. Partners can engage in penetrative sex, known as full swap, or choose to soft swap in which they engage only in non-penetrative sex. The higher pay scale and profile within a production often leads to group scenes where a straight actor only tops. Masturbation gay fuck has been depicted in art since prehistoric times and is mentioned and discussed in very early writings. Bobbi S. Sadomasochism does not imply enjoyment through causing or receiving pain in other situations . But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period.