The Twilight Saga co-stars reportedly spent the night gazing into each other's eyes and stealing 'quick kisses' from each other during a meal at Soho House in Hollywood on Saturday.
R-Pattz also kept his arm around Kristen as they dined out with pals including Pattinson's best buddy Tom Sturridge.
A source told E!: 'After dinner, Rob, Kristen and their friends moved to the patio where the group was smoking and the guys were drinking.'
'Everyone was laughing and having a good time together, but you could tell Rob was doting on Kristen and making sure she was comfortable.'
'They were next to each other everywhere the group went.'
Once they left the restaurant, the camera-shy couple looked stony-faced in front of waiting photographers and refused to raise a smile.