Jennifer Aniston partied till almost midnight at the Beverly Hills Hotel on Feb. 23 at The Night Before benefit, Star reporrt . Then Aniston hooked up with Sex and the City star Jason Lewis, who took her to the nearby Audi-hosted Miramax pre-Oscars bash.

"Jennifer walked into the dinner just after midnight with Jason!" an insider tells Star. "They sat down on a couch together and tried hard not to look so into each other. But I could see her playing footsie with him. She kept rubbing her foot up his calf. It was obvious they were more than friends."

The source adds, "Jen and Jason looked thrilled to be reunited."