The hentai porno films were financially successful, winning AVN Awards for the best selling pornographic films of their year; however the events were effectively un-officiated and the record breaking claims often misleading. The most established and probably most cliché set form of dominance and submission is Dominance and slavery. Fat fetishism also incorporates stuffing and padding, whereas the focus of arousal is on the sensations and hot gay sex properties of a real or simulated gain. The term hamedori came into use about 1988–1989, but it was only a small niche area until it was hot gay sex popularized at V&R Planning by director Company Matsuo. For other diaper fetishists, simply wearing a diaper, the bulking feeling and crinkling sounds associated with it, is enough to cause the fetishist a form of erotic pleasure or sexual arousal. Fetish cuckolding can have a wide range of expression, from pillow-talk fantasy between monogamous partners to extreme alternative lifestyles, depending hentai movies on the couple. Practitioners have described going to public places such as a mall or a park. It can also be heightened by the person saying that they have to urinate. Fisting pornography features the insertion of an entire hand into a performer vagina or anus. For example, the Kama Sutra, in particular, goes into specific detail on how to properly strike a partner during sex. The interaction between tops and bottoms—where physical or mental control of the bottom is surrendered to the top—is sometimes known as power exchange, whether in the context of an encounter or a relationship. Enema pornography involves naked celebrities adults given enemas to others, often fake. This is commonly called double anal or double stuffing. The terms can be complimentary or pejorative. Transwomen are most often featured with male partners, but are also featured with other transsexuals or cissexual women. Group nude milfs sex can occur between people of all sexual orientations and genders. Kinbaku is a Japanese style of bondage or BDSM which involves tying naked celebrities up the bottom using simple yet visually intricate patterns, usually with several pieces of thin rope .