Subway groping

Subway Groping

The act of rubbing, grabbing, or otherwise molesting another person on a subway, underground, tube, or similar.

Subway groping, also known in japan as Chikan, is a particular fetish and social issue that has struck japan.

According to wikipedia, Chikan (痴漢, チカン, or ちかん) is the Japanese term used to refer to frotteurism, or men who commit such acts (the term for women who commit such acts is chijo, 痴女). Crowded trains are the most common target of chikan and chijo, and as part of the effort to combat the problem, some railway companies designate women-only passenger cars during rush hours.[4][5][6] While the term is not defined in the Japanese legal system, vernacular usage of the word describes acts that violate several laws. Although crowded trains are the most frequent targets, another common setting are bicycle parking areas, where people bent over unlocking locks are targets. Chikan often features in Japanese pornography.

One high-profile instance is that of economist and former professor at the graduate school of Waseda University Kazuhide Uekusa who has a string of arrests for sex-related offences, the most recent of which came when he was arrested for molesting a schoolgirl on a train on September 13, 2006.

More about the techinal issues of Frotterism from wikipedia

In porn, there are a significant number of Japanese videos dealing with the subject, it is a popular (although often disagreeable) fetish that includes rape fetish which is not acceptable in the western world. In Japan, there are sex clubs for men where they can go and have a girl act out as a subway rider (including a fake subway car to work in) which leads to pay for play sexual contact (called cosplay ). It is hard for the Japanese to seperate the fantasy and reality, as it often the case in their porn and sexual fantasies.

You can check out some good examples of this on the site Public Sex Japan here