Since at least 1973, it has also been used to refer to a sexually attractive young woman. Failure to honor a safeword is considered serious misconduct and could even change the sexual consent situation into a crime, depending on the relevant law, since the bottom has explicitly revoked his or her consent to any actions that follow the use of the safeword . Pegging is a recently invented word which features a woman penetrating a man with a strap-on dildo. Various groups within society have considered depictions of a sexual nature immoral, labeling them pornographic, and attempting to have them suppressed under obscenity and other laws, with varying degrees of success. As with most forms of sexual activity, anal sex participants gay twink porn risk contracting sexually transmitted infections . A smotherbox has two openings. The Japanese sex momporn industry uses the term Paizuri . Jail/Prison/Police pornography involves people in police custody or inmates in jails or prisons in various sexual situations, such as strip searches or body cavity searches. 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 . Weather Report Girl is considered yuri hentai in English usage for its depiction of lesbian sex, but in Japan it is just yuri. This is commonly called double anal or double stuffing. While bondage is a very popular variation within the larger field of BDSM, it is nevertheless sometimes differentiated from the rest of this field. 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. Unlike erotic films, pornographic films contain explicit sexuality and do not claim any artistic merit. There anime hentai is also some evidence that pornography can be used to treat voyeurism. Group sex can occur between people of all sexual orientations and genders. The legal status of masturbation has also varied through history and masturbation in public is illegal in most countries.