Matsuo used amateur actresses in his videos, and he usually traveled to their hometowns for the filming. Women porn is often produced by women and aimed specifically at the female market - rejecting the view that men are turned on by porn but women only by a box of chocolates. For legal reasons, the vast majority of so-called reality porn involves professional actors and actresses posing as so-called amateurs. Comic books often featured characters being tied up and tying others up, particularly in damsel in distress plots. A sub-set of vaginal fisting attempts to photograph the female cervix immediately after the fist is removed from the now-gaping vagina. A crush fetish is a fetish in which one is sexually aroused usually when someone crushes objects, food, and sometimes small animals with their body, usually under their foot, or when crushed oneself. 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. It is used, for example, at fertility clinics to stimulate sperm donors. Reflective of its views on sexuality and culture, Japanese pornography delves into a wide spectrum of heterosexual, homosexual, and transgender sexual acts in addition to unique fetishes and philias. In more vigorous forms of fisting, such as punching or punchfisting, a fully clenched fist may be inserted and withdrawn slowly. The wife who enjoys cuckolding her husband is frequently called a hotwife, or a cuckoldress if the man is more submissive. It momporn is sometimes combined with BDSM features. It is commonly depicted in pornography, but very rarely in mainstream cinema. Internal ejaculations, followed by images of semen dripping gay movies from the anus, are sometimes depicted in bareback gay pornography, where they are referred to by the term breeding or the reverse hentai movies money shot. Gay-for-pay describes male or female actors, pornographic stars, or sex workers who self-identify as heterosexual but who are paid to act or perform as homosexual professionally.