Rough sex pornography is similar to pornography featuring sadomasochism, and typically features a Top who humiliates and/or degrades a Bottom while being physically violent towards them. For other diaper fetishists, simply wearing a diaper, the bulking feeling and crinkling sounds associated with it, is enough to cause the fetishist a form of erotic pleasure or sexual arousal. Technically this is a form of exhibitionism rather than group sex per se. The person sat upon may be in bondage, sexually submissive, or simply held down by the body-weight of the other young gay porn person. In some areas, there are laws stating it is not legally possible to consent to be killed, and elsewhere it may still be legally dubious . In places where non-monogamous sex is taboo or illegal, group sex may take place in private or clandestine locations including homes, hotel rooms, or private clubs. Foot fetishism, foot partialism, foot worship, or podophilia is a pronounced sexual interest in feet. Fat fetishism also incorporates stuffing and padding, whereas the focus of arousal is on the sensations and properties of a real or simulated gain. This is sometimes the case for punishment scenes between master/slave couples or for some extreme or edgeplay scenes which may include abductions, rape play, or interrogation. Discipline often incorporates sadomasochistic aspects, though some sadomasochists distance themselves from D/s practices such as punishment. Bukkake, Gokkun, Omorashi, and tentacle erotica are few uniquely Japanese genres known to western viewers. However mature milfs the genre remains a very hentai movies small proportion of the pornographic DVD market; for example at porn retailer HotMovies. Freud, however, considered such extensions of sexual interest to fall within the range of the normal, unless marked out by exclusivity . Men and women may masturbate until they are close to orgasm, stop for a while to reduce excitement, and then resume masturbating. Consent is the most important criterion here. Accepting that Eros is not always pretty, and may involve the forbidden or taboo - as with women pornography – forms part of the struggle with the good girl/bad girl or virgin-whore split in postmodern femininity.