The eight-times gold medallist was snapped copping a cheeky handful of a stripy-stockinged go-go girl at the world-famous Playboy Club.
A fellow party-goer at the club said: "The girls were all over him, but he was only interested in one certain blonde. He was laughing and joking with her."

Human-fish Phelps's incredible medal haul in Beijing made him the greatest Olympian ever in the swimming pool.
Now he's trying his hand at the track and feel...
Pictures from Radar.