Geoffrey Arend and Christina Hendricks
Alexandra Wyman/Invision for AMC/AP
07/11/2013 at 03:00 PM EDT
and hubby Geoffrey Arend
were the picture of a happy couple
on Tuesday night.
The Mad Men
starlet and Body of Proof
star were joined by a big group of friends, including Michael Cera, at Stone Rose lounge in New York City.
"They were acting cute and she was giggling," an onlooker tells PEOPLE of the pair. "It was adorable how Geoffrey was being sweet with her and totally doting. I was surprised Michael was with them, but they must know each other well because it seemed like they were close."
And in typical Mad Men
fashion, the actress sipped on vodka martinis throughout the evening.
– Dahvi Shira