Medical pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, and pelvic or gynecological ultrasounds. The porn industry and viewing public were shocked by the then-taboo spectacle of a white woman gay cock having sex with a black man. The full-weight body-pressure, moisture, sex odors and darkness can be perceived as powerful sexual attractions or compulsions. In Japan, point of view pornography is referred to as hamedori . Commenting on why there are not as many female macrophiles, psychologist Helen Friedman hentai porn theorized that because women in most societies already view men as dominant and powerful, there no need for them to fantasize about it. Bear features a combination of middle-aged, hairy or overweight momporn males. A study of the condom usage habits of New Zealand sex workers said that they offered various safe sex alternatives to vaginal sex to clients who refused to wear a condom. Cum shots typically do not appear in girl-girl scenes and orgasm is normally implied by utterances, cinematic conventions, or body movement. Many cultures describe pain as an aphrodisiac. However, various groups within society considered such depictions immoral, labelling them pornographic, and attempting to have them suppressed under obscenity laws, with varying degrees of success. A scene where many women have sex with one man is referred to as a reverse gang-bang. A woman can use a secondary vibrator, between the dildo and her genitals, to get pleasure from pegging. Snowballing or snowdropping is the human sexual practice in which one person takes someone else semen into his or her mouth and then passes it to the mouth of the other, usually through kissing. Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. Rainbow parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. Arcane or occult pornography involves sexualized situations with an occult or magical tone or performers who costume themselves in keeping with the theme, for example, a male performer dressed as a wizard.