Contrary to the other two types, B/D does not define the Tops and Bottoms itself, and is used to describe the general activities with either partner being the receiver and the giver. Kurt Wild, who appeared as a bottom in Lucas Entertainment Gigolos, is married to a woman and has three children. Medical pornography involves sexualized medical, often fake, including gynecological pelvic examinations, rectal examinations, momporn and pelvic or gynecological ultrasounds. 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. Two women tapegagged and cuffed to iron bars Bondage and Discipline are two aspects of BDSM that do not seem to relate to each other because of the type of activities involved, but they have conceptual similarities, and that is why they appear jointly. Additionally, the buttocks give an indication of the shape and size of the pelvis, which impacts reproductive capability. Portrayals of lesbians in the media suggest that society at large has been simultaneously intrigued and threatened by women who challenge feminine gender roles, and fascinated and appalled with women who are romantically involved with other women. Tentacle erotica can be consensual, but frequently contains elements hentai videos of non-consensual sex. Pornography may fall into more than one genre. Cum shots typically do not appear in girl-girl scenes and orgasm is normally implied by utterances, cinematic conventions, or body movement. Women oriented pornography is sometimes referred to as sex positive pornography. Following the introduction of videos gays the Motion Picture Association of America film rating system, independent animation producers attempted to establish an alternative to mainstream animation. Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. Some people get sexual pleasure by inserting objects, such as urethral sounds, into the urethra , a practice known as urethral play or sounding.