Police in the UK busted a sex slavery cult who based their S&M lifestyle on a series of 1960s sf novels.
The Kaotians are a splinter group of the Goreans, which according to estimates number 25,000 followers nationwide. Both
groups base their slavery and dominance beliefs on a series of novels
written by John Norman, an American philosophy academic. THE CHRONICLES OF GOR depict a society, called the land of Gor, which is divided into
castes, and where women are kept as slaves.
(thanks to Bookslut for the heads-up)