Naughty photo of Carla Bruni up for grabs

New York, March 18 : A naughty photo of French President Nicolas Sarkozy's wife, Carla Bruni, is being auctioned.

The sex-themed sale of 221 works is being held at the Phillips de Pury auction house in London, reports the New York Post.

The collection includes the 1992 photo Helmut Newton took of the pantsless supermodel, bending over and showing her shapely derriere, valued at up to 7,500 dollars.

Pieces by David Hockney, Matisse, Picasso, Andy Warhol and gay iconographer Tom of Finland are also up for sale.