Internal ejaculation shots are a comparatively recent development in pornography; they are not found in early pornographic films. Bondage/BDSM porno gay Bondage pornography features performers tied up or constrained in various ways. Pornography may be presented in a variety of media, including books, magazines, postcards, photographs, sculpture, drawing, painting, animation, sound recording, film, video, and video games. Urolagnia is a form of salirophilia in which sexual excitement is associated with the sight or thought of urine or urination. The full-weight body-pressure, moisture, sex odors and darkness can be perceived as powerful sexual attractions or compulsions. 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. On the other hand, the masochist enjoys being hurt, humiliated, or suffering within the consensual scenario. The niche popularity grew significantly in the latter half of the first decade of the 2000s. It is sometimes combined with BDSM features. Bear features a combination of middle-aged, hairy or overweight males. Adult animation is genre of animation geared towards adults and sometimes teens. Both forms of pornography generally contains nudity. Participants who exert sexual control over their partners are known as dominants or tops while participants who take the passive, receiving, or obedient role are known as submissives or bottoms. If this is done using penises and/or strap-on dildos, this is sometimes called the sandwich or BigMac. The industry generally refers to such films as adult films, which is part of adult entertainment. Pregnancy fetishism is a context where pregnancy is seen by individuals or cultures as an erotic phenomenon. Real medical shots or videos may violate privacy laws in some countries.