Getty Images for Charlotte Tilbury

Amal Clooney didn't just show off her keen fashion sense, she also showed off her flat stomach at Charlotte Tilbury's naughty Christmas party for the launch of Charlotte's new flagship beauty boutique in London’s Covent Garden.

The revealing ensemble dispelled any rumors that George Clooney's lady love had a bun in the oven. Not with those perfect abs!

The 37-year-old human rights lawyer opted for a metallic two-piece ensemble by Lanvin c. 1967 for the night out with her mother Baria.

Other party goers included Kate Bosworth, Salma Hayek and Fearne Cotton.