shit, tough call. these are two of my favorite actresses. for me, they're a toss-up when it comes to looks. both are fucking beautiful. keira wins hands-down body-wise--she was sooooo hot in bend it like beckham. nat is damn smart and would probably make for better post-coital convo (which i consider a very important attribute).
hmmmmmm. well, if lots of nights were involved, i'd pick nat. but since painted says one night, i gotta go with keira.