You know what they say. When in Paris... a barely legal blonde bombshell has to strut her stuff. And sometimes, that means a little side boob action.

Hayden Panettiere showed us a little breast - and a tremendous body all around - while wearing a gorgeous, form-fitting gold dress while on a press trip yesterday in France.

Ooh la la! Look at the reaction of her Heroes co-star, Milo Ventimiglia, for all that really needs to be said. Keep those eyes on the prize, Milo!

Hayden Panettiere in France promoting her TV show... and rack. Tres sexy!