Keira Knightley has been making clandestine visits to the Halcyon Gallery in London to pose nude for artist Mitch Griffiths.
‘It’s considered a great honour to be painted by Mitch,’ says a source.
‘He is a highly respected nude painter and is painting a number of subjects for an exhibition next year. He is delighted Keira agreed to take part.’
Keira, 24, obviously remains very happy with her flat-chested figure. She demanded that promotional shots for her film The Duchess were left untouched after posters for King Arthur were altered to enhance her breasts.
Meanwhile, the busy actress is currently appearing in a West End play, the The Misanthrope. In the modern-day version of Moliere's 17th century masterpiece, Keira plays a Hollywood film star.