American model Holly Madison was photographed naked with chain wrapped round her body, as she posed at the bottom of the sea.
Madison, 29, looked quite the mermaid as she displayed her twin assets during the underwater pose, reports the Sun.
The busty Playboy blonde, a former girlfriend of Hugh Hefner, did the X-rated underwater display as she posed for a kinky shoot.
She could be seen resting seductively on the seabed before popping out of the water for a shot of her famous chest.
Madison also flashed her bum as she leaned over a giant rock.