Other objects such as ball point pens and thermometers are sometimes used, although this practice can lead to injury and/or infection. Common phrases used to refer to these individuals are chicks with dicks or the derogatory term shemale, although these are generally considered pejorative among transwomen. It is also known colloquially as gushing or squirting, although these naked milf are considered to be different phenomena in some research publications. Rainbow gay twinks parties were covered on The Oprah Winfrey Show in 2003, and became the subject of a juvenile novel called Rainbow Party. The act may be carried out face to face, or head to tail, with the woman recommended to be on top if she has smaller breasts. There are number of types of sex parties: Swinger party/gathering A swinger party or partner-swapping party is a gathering at which individuals or couples in a committed relationship can engage in sexual activities with others as a recreational or social activity. Medical pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, and pelvic or gynecological ultrasounds. Lolita pornography features women who are 18 years old or slightly older, who pretend to be underage teen girls. A scene where many women have sex with one man is referred to as a reverse gang-bang. Pornography is often distinguished from erotica, which 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. Today, religions vary in their views of masturbation; some view it as a spiritually detrimental practice, some see it as not spiritually detrimental, and others take a situational view. These styles are much closer to the style of bondage scenes in mainstream television. Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it.