The related term twinkle-toes, which implies that a man is effeminate, tends to be used in a derogatory manner. Comic books often featured characters being tied up and tying others up, particularly in damsel in distress plots. Emetophilia pornography involving vomiting and gagging. Sometimes special furniture is used, such as a queening stool or smotherbox. Mammary intercourse is said by Alex Comfort to produce mutual orgasm in women with sensitive breasts , and it was one of the nine substitute exercises for penetrative sexual activities, as detailed in the Paradis Charnels of 1903. This may relate to fetishes such as voyeurism or cuckolding. Examples gay fuck include the Girls Gone Wild and Girls Who Like Girls Series. Real enema shots or videos of true medical situations may violate privacy laws in some countries. Omorashi: The act of holding one own urine until the need to urinate is urgent, making another hold in their urine, or watching another person with an urgent need to urinate. Often a dominant woman, she may be called a Dom, Domme /ˈdɒm/, Femdomme, Domina, or Dominatrix, depending on context or personal preference. In the 1970s, the hardcore pornography genre introduced the stereotypical cumshot scene as a central element of the hardcore film, in which the male actor ejaculates in a way ensuring maximum visibility of the act itself. The phrase is commonly found hentai movies on porn sites. There is also some evidence that pornography can be used to treat momsex voyeurism. It like associating every Christian with the zealots who cause religious wars. An orgy is a gathering where guests freely engage in open and unrestrained sexual activity or group sex; and a bunga bunga orgy is an orgy in which participants have sex underwater, such as in a swimming pool or a hot tub. The current record is held by Lisa Sparks who had sex with 919 men on October 16, 2004 in Warsaw, Poland as part of the Third Annual World Gangbang Championship and Eroticon 2004. Sexologist Alfred Kind suggested that the buttocks is the primary sexual presentation site in primates.