The name of the practice, when it is done in a repeated in-and-out motion, is derived from its passing resemblance to the dipping of a tea bag into a cup of hot water as a method of brewing tea. Some couples use pornography at times for variety and to create a sexual interest or as part of foreplay. Bareback sex is physical sexual activity, especially sexual penetration, without the use of a condom. Guro or Gore is a genre of Japanese pornography involving blood, gore, disfiguration, gay hentai violence, mutilation, urine, enemas, or feces. In many cases, that person is also aroused by smelling body parts that have a urine scent. Now facial cumshots are regularly portrayed in pornographic horny milfs films, videos, magazines and internet web sites. In some societies, the terms fox, plum, chick, or chicken are preferred. Teacher and Student or Boss and Secretary pornography involves sexualized situations which take place between an authority figure, such as a teacher or boss, and an underling, such as a student or secretary, often fake. But starting with The World Biggest Gangbang , starring Annabel Chong, the pornographic industry began producing a series of films ostensibly setting gangbang records for most consecutive sex acts by one person in a short period. Some restrict a policy of panties/nipple tape for females and some allow full nudity with explicit sexual interaction allowed. It may be used as foreplay, or as an alternative to sexual gay movies penetration. Targets the male audience, but is much less popular than Yaoi. Softcore pornography generally contains nudity or partial nudity in sexually suggestive situations, but without explicit sexual activity, sexual penetration or extreme fetishism, while hardcore pornography may contain graphic sexual activity and visible penetration, including unsimulated sex scenes. The speed of the hand motion will vary from person to person, although it is not uncommon for the speed to increase as ejaculation nears and for it to decrease during the ejaculation itself.