Pornography may be presented in a variety of media, including books, magazines, postcards, photographs, sculpture, drawing, painting, animation, sound recording, film, video, and video games. Pornographic films are typically categorized as either softcore or hardcore pornography. Celebrity sex tapes are amateur or professionally-made recordings of sex acts, as performed by a celebrity and their partner. If this is done using penises and/or strap-on dildos, this is sometimes called the sandwich or BigMac. Starting with erotic stories and woodblock prints from before the 20th century, Japanese pornography evolved into distinct subcategories with the media that in addition of pornographic videos and magazines featuring live actors, there is exist categories of pornographic manga , pornographic computer games , and pornographic anime . Normal quantities of ejaculate range from 1.5 to 5.0 milliliters . In S/M, the Sadist is usually the Top momsex and the Masochist the Bottom, but these roles are frequently more complicated or gay twinks jumbled . Sadomasochism is practiced in isolation relatively rarely, though some masochists report biting, pinching, or even stun-gunning themselves as a prelude to, or as part of, masturbation. Hamedori is hentai porn a genre of Japanese pornography in which a male adult video actor or director serves as the camera operator. The arousal from being desperate comes from the sensation of having a full bladder. Though there have been numerous gang bang pornographic films since the 1980s, they usually involved no more than half a dozen to a dozen men. The full-weight body-pressure, moisture, sex odors and darkness can be perceived as powerful sexual attractions or compulsions. Entacle erotica describes a type of pornography most commonly found in Japan which integrates traditional pornography with elements of bestiality and a fantasy, horror, or science-fiction theme. Bukkake pornography involves a performer, usually female, onto whom several men or women ejaculate, usually on the face.
