Big Sister was a brothel in Prague, Czech Republic, and an online voyeuristic pay site. Operating from 2005 to 2010, it described itself as the only brothel where customers could use the women's services for free, subsidized by paying Internet viewers; live video and audio streams and archived videos of the activity in the brothel were available on the website for a fee. As well as these subscription fees, the brothel generated income from sales of DVDs of recorded footage of the women with the brothel's clients, as well as amateur couples that visited the building, and footage of the filming of adult productions that took place on site. The name of the club was a reference to the television series Big Brother, in which contestants live in a house with cameras in every room, recording their every action.
