The two rebounding stars reportedly got hot and heavy on the dance floor over the weekend at LA hotspot Roxbury.
An eyewitness tells Us Weekly that they danced all night, but avoided kissing in public. "They were obviously a couple or on a date," the insider says. "They were dancing, whispering, he had his hand on her back and shoulders and they were together all night."
Another witness added, "His arm was around her, they were talking closely, just the two of them...Justin and Olivia were there with a group, but weren't talking to anyone else."
Damn! These two moved on quick! Justin split from Jessica Biel last month after three years together and Olivia filed for divorce from her hubby of eight years on March 11th.
Hot co-stars hooking up off screen? What a shocker. Justin and Olivia had some crazy chemistry together in their upcoming movie upcoming sci-fi thriller, I’m.Mortal, but I can't help but wonder, is this for real or a publicity stunt for their new movie?