Spending an enjoyable night out together, Sienna Miller and Balthazar Getty were spotted leaving the Groucho private members club last evening (November 27).

The “Factory Girl” actress and the “Brothers and Sisters” stud tried their best not to attract attention by making separate exits, but in the end they were found out to be hanging out together.

Earlier in the day Sienna and Balthazar were spotted walking Miller’s dogs and laughing together in London’s Maida Vale district.  An eyewitness reported, “We drove past them and they looked very together.  Sienna looked really pretty and so happy.”

This is quite a change from Balthazar’s sentiments earlier this year when they broke up.  Back then, an inside source told press, “Sienna is only 26 and loves to go out. At first Balthazar was excited by her beauty but eventually realized he should be back with his wife, and that Sienna represented a phase from another point in his life.”