Auden Carlsen claimed he was grabbed by the one-time Culture Club singer and another man and chained up after the star invited him to his house to pose for photographs for a fee, the Daily Mail reported Monday. Carlsen claimed he met Boy George, real name George O'Dowd, on the Web site, Gaydar.
"I was convinced I was going to die," he said of Saturday's incident. "George handcuffed me to a hook by the bed as they held me down."
He said Boy George showed him whips and sex toys and said, "Now you'll get what you deserve."
Carlsen said he escaped by pulling the hook from the wall and fleeing to a nearby news stand, where he called police.
Scotland Yard said it was investigating allegations of false imprisonment and common assault.
Boy George, free on bail, had no comment.