Du Haut Pays If one person is penetrated by two objects, it is generically called double penetration . The strategies and tactics that are used to smuggle one of the couple into and out of the toilet undetected are as important or almost as important as the urination. Diaper fetishism is totally independent from pedophilia as the wearer derives pleasure only from the diaper and/or use of it. Those with diaper-related paraphilias differ widely in their focus of attention. The most common male masturbation technique is simply to hold the penis with a loose fist and then to move the hand up and down the shaft. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. These actors often play the top roles but this is not always the case, such as with Kristen Bjorn and some Bel Ami models. In humans, females generally have more round and voluptuous buttocks, caused by estrogen that encourages the body to store fat in the buttocks, hips, and thighs. Women with women Main article: Lesbianism in erotica: Lesbianism in contemporary pornography Lesbian or girl-girl pornography features women engaged in sex together, but is typically aimed at a male audience. Pornography may fall into more than one genre. Rainbow party A rainbow party is an urban legend spread from the early 2000s. Specific sex acts Anal Anal pornography features anal penetration with a penis, dildo, other objects, or some combination of them. Tentacle erotica can be consensual, but frequently contains elements of non-consensual sex. The loose and direct camera work often includes tight shots of the genitalia, unlike some traditional porn. Interactive pornography, available in CD-ROM and DVD format, allows the viewer to select the particular acts performed at any one time, sometimes with the camera providing a first person view. However, bisexual pornography is often placed near the gay section in adult video stores, since many consumers are gay men. The full-weight horny milfs body-pressure, moisture, sex odors and darkness can be perceived as powerful sexual attractions or compulsions.