Jonny Lee Miller Sienna Miller blonde sunglasses skirt legs dog lease stroller baby Sienna Miller and Jonny Lee Miller look like your average hip New York couple out for a stroll around the neighborhood.

Only problem is, he's another woman's husband. But that hasn't exactly stopped her before, right?

The Millers are currently starring on Broadway in After Miss Julie, but it looks like they're also enjoying their time together before and after Miss Julie. Should Mrs. Miller be worried?