In general, softcore pornography is pornography that does not depict explicit sexual activity, sexual penetration or extreme fetishism. Pegging is a recently invented word which features a woman penetrating a man with a strap-on dildo. Yuri is the lesbian equivalent. Pornography can be classified according to the physical characteristics of the participants, fetish, sexual orientation, etc., as well as the types of sexual activity featured. It has been described as professionally made porn which seeks to emulate the style of amateur pornography. Interest in BDSM can range from one-time experimentation to a lifestyle. The term hamedori came into use about 19881989, but it was only a small niche area until it was popularized at V&R Planning by director Company Matsuo. In the United States, creating, distributing, or possessing crush videos has been illegal since 1999, and many other countries also have banned them. It is practiced by people of all sexual orientations, and can be part of a full repertoire of sexual activity. Contact mutual masturbation One person touching another person to masturbate. Ethnic pornography is a genre of pornography that features performers of specific ethnic groups, or depictions of interracial sexual activity. Actors are mostly amateur; any well-known actors in bisexual porn tend to be from the gay pornography industry. In straight pornography, intercourse is often followed by a facial, pearl necklace or other visible ejaculation. However, sex researchers and adolescent health care professionals have found no evidence for the existence of rainbow parties, and as such attribute the spread of the stories to a moral panic. Arousal may be triggered by seeing the body movements or facial expressions of that person. Consent is the most important criterion here. In the 1920s, Havelock Ellis reported that turn-of-the-century seamstresses using treadle-operated sewing machines could achieve orgasm by sitting near the edge of their chairs. Cum-shot pornography features momsex a collection of male ejaculation scenes.