The Hangover star seems to be quite popular amongst the ladies these days, says People.
Last weekend, the single 34-year-old denied that he and Jennifer Aniston were romantically involved, after they were spotted together in a chic New York restaurant.
This week, Cooper was seen with actress Renee Zellweger at Manhattan’s Antonucci restaurant.
"They were very flirty. Either he’s being very gentlemanly, ’cause that’s the way he is, or they’re dating," an eyewitness revealed.
Zellweger’s spokesperson refused to comment on the subject, however a close source to the actress mentioned that she had met Cooper on the set of Case 39, and that the two are just friends.