Mrs. Britian meets Mrs. American.

For their first-ever meeting, both women chose romantic pieces in subdued hues. Mrs. O's pick, reported Mrs.-O.org, was a mint green silk printed dress from designer Barbra Tfank (her pricey pieces are sold at Barneys New York).Kate went a little more mass-market with a bandage dress from one of her faves, British-based retailer Reiss ($340, though it has sold out already online!) and a pair of simple black pumps. 

MACK: I'm way too obsessed but Kate's looks killer. 

(Via the Today Show)