If you want to watch Nick having sex with a prostitute, he's happy to let you.

The 36-year-old bank-security technician drove eight hours from his home in Metz, France, to Big Sister, a Prague brothel where customers peruse a touch-screen menu of blondes, brunettes and redheads available for free. The catch is clients have to let their exploits be filmed and posted on the Internet.

``Sex is no taboo,'' Nick says, though he asked that his last name not be used. ``You have to free your mind.''

Big Sister is marrying 21st-century technology with the world's oldest profession to profit from the public's appetite for ever-more graphic reality TV. Since 2005, more than 15,000 men have taken up the offer of free sex in return for 15 minutes, or less, of fame, according to the brothel.