Gonzo porn is influenced by amateur pornography, and it tends to use far fewer full-body/wide shots in favor porn milf of more close-ups . Especially popular in post-World War 2 Japanese culture. The terms can be complimentary or pejorative. This is also the case in many relationships not considering themselves as sadomasochistic; it is considered to be a part of BDSM if it is practiced purposefully. The other is in the top of the box to expose their face. 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. There are no particular or preferred elements within maiesiophilia that are common to all maiesiophiliacs. Anti-pornography psychologist Ana Bridges and colleagues conducted a content analysis of best-selling heterosexual pornographic videos showing that over 96% of all scenes concluded with a male performer ejaculating onto the body of his female partner. Felching involves drinking recently ejaculated gaysex semen from the vagina or anus. High heel pornography involves women or men dressed in high heeled shoes. Squirt pornography involves women ejaculating. Caro rejected that as being a necessary conclusion, stating that female fatty deposits on the hips improve individual fitness of the female, regardless of sexual selection. The sub-genres usually conform to certain conventions, and each may appeal to a particular audience. In gay pornographic movies, actors who identify themselves as heterosexual, but who nevertheless perform explicit sexual acts with other males on film do not face the same stigmas as the mainstream acting counterparts and indeed can rise quickly to being featured actors. When all regions of the face are included, facial cum shots comprise approximately 62% of scenes where external ejaculation occurs. Not all crush fetishists are that extreme! Kinbaku is a Japanese style of bondage or BDSM which involves tying up the bottom using simple yet visually intricate patterns, usually with several pieces of thin rope .