Who's that lady? Robert Pattison brought a lady friend with him to a pal Shoshana Bush's birthday party on Saturday, Sept. 21, and sources tell Us Weekly that the pair seemed to be very much into each other -- though the famously private actor held off on PDA throughout most of the night.
"The party was so fun. Everyone was dancing to Frank Sinatra hits," an eyewitness tells Us. "Rob was there with his new girlfriend. I don't know her name."
According to the source, the new couple wasn't "making out," though they did hold hands and dance together at the poolside bash. Pattinson sipped on Maestro Dobel tequila at the low-key get-together.
Another source adds that the as-yet-unidentified woman was "heard calling him babe."
"There were like 40 people at the party, it was intimate, and Rob was next to her the entire time no matter where he was," the first source said, adding that the usually stoic actor looked "really happy."
Pattinson and his new gal pal have yet to be photographed together, though the Twilight actor has been photographed with another gorgeous brunette -- a trainer who fills in on occasion for regular trainer Harley Pasternak -- working hard to get into shape for his upcoming role in Mission: Blacklist.
Pattinson, 27, recently spoke out about getting back into the dating pool in the Sept. 15 issue of Australia's Sunday Style magazine, admitting that he's "quite sensitive" about getting into a new relationship following his very public breakup with Twilight costar Kristen Stewart.
"I'm quite sensitive, and I do like a bit of grand gesturing, but that's just my style," he told the magazine. "I like to give people presents and I think of myself as the best gift giver, but only because I get stuff for myself and then make it work for the other person."