Comic gay bear porn books often featured characters being tied up and tying others up, particularly in damsel momsex in distress plots. 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. Several hundred exclusively pegging films were produced, as well as twice as many bisexual and straight films with strap-on scenes. There is no singular or archetypical behavior; therefore, a wide range of thought patterns and behaviors exist, but all tends to be a harmless and efficacious release from some kind of pressure. A variant of A2M is ATOM where a performer inserts his penis directly from one recipient gay sex video anus into a second recipient mouth. Commercialized pornography accounts for a nearly US0 billion worldwide industry for the production of various media and associated products and services. Pornography is often distinguished from erotica, which 3d hentai consists of the portrayal of sexuality with high-art aspirations, focusing also on feelings and emotions, while pornography involves the depiction of acts in a sensational manner, with the entire focus on the physical act, so as to arouse quick intense reactions. Kinbaku means tight binding Kinbaku-bi which literally means the beauty of tight binding. Bara male homosexual hentai designed to appeal to men. This may relate to fetishes such as voyeurism or cuckolding. Creampie scenes depart from heterosexual pornographic convention in favor of a depiction that more closely mimics sexual intercourse as performed in ordinary life; they have been called the counterimage of facials. Most soft crush fetishists avoid being placed under the same label as hard crush fetishists, believing that crush films with larger animals give the entire group a bad label. Tentacle rape or shokushu goukan is found in some horror or hentai titles, with tentacled creatures having sexual intercourse with female characters.