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. Spanking or whipping pornography involves spanking or whipping, generally of the buttocks, with the hand or with other objects such as belts, switches, paddles, brushes, or whips. Common phrases used to refer to these individuals are chicks with dicks, trannies, or shemales, although these are generally considered pejorative slurs among transwomen. Fisting pornography features the insertion of an entire hand gaysex into a performer vagina or anus. Pegging is a recently invented word which features a woman penetrating nude milfs a man with a strap-on dildo. There are currently no known laws forbidding the crushing of objects and insects, however the production or trade of crush erotica involving live vertebrates is condemned by animal rights activists and is illegal in many countries, including the United States and Great Britain. One-sided male nudity can also arise when a male disrobes as part of a male striptease. The person sat upon may be in bondage, sexually submissive, or simply held down by the body-weight of the other person. The first film was released in 1980 starring Kay Parker. These typically are leaked to the public via the Internet, with or without the celebrity consent. For other scenes, particularly in established relationships, a safeword may be agreed to signify a warning rather than explicit withdrawal of consent; and a few choose not to use a safeword at all. Unlike the traditional definition of the 3d hentai term, in fetish usage a cuckold is complicit in their partner sexual infidelity and takes masochistic sexual pleasure in it. In D/S, the Dominant is the Top and the submissive is the Bottom. Felching involves drinking recently ejaculated semen from the vagina or anus. Anal sex or anal intercourse is generally the insertion and thrusting of the erect penis into a person anus, or anus and rectum, for sexual pleasure.
