PRAGUE - AUGUST 23: (EDITORS NOTE: CONTAINS NUDITY) A patron participates in a live sex act as others watch at Big Sister on August 23, 2006 in Prague, Czech Republic. The World's first online brothel 'Big Sister' opened on April 7th, 2005. The concept is to show everything behind the scenes in a brothel - a reality TV for the sexually adventurous. Every visitor to Big Sister must only pay a small cover charge of about 10 Euros - but also sign a contract agreeing to be filmed and that the owners can do whatever they like with the footage. As the entire house, including the girls appartments, are wired for sound and video with over 50 cameras, everything that occurs in Big Sister can potentially be selected for online and offline use by its editors. (Photo by Kurt Vinion/Getty Images)