The glamorous divorcee was showing off her legs to full effect on the set of her new movie The Bounty in New York, in which she plays a woman estranged from her bounty-hunter husband.
Earlier in the shoot, rumours linked her to co-star Gerard Butler, leaving fans hopeful that a new romance was on the horizon.
But the handsome Scotsman did his best to scotch them, making wild declarations of love for her that were clearly meant to be tongue in cheek.
He did, however, go so far as to praise Jen as classy lady, admitting that he's "happy as a pig in s**t" to be sharing a set with her.
"Every day I go to work with her, I'm always surprised about how cool, easy and down to earth and real she is.
"I'm in heaven. I can't always say that about movies, but to be filming this romantic comedy with Jennifer and a story that made my side split when I read it - I'm lucky."