The couple - who recently reconciled following their split during the summer over Stewart's fling with married director Rupert Sanders - dined at Soho House in West Hollywood with friends, reported Hollywood Life.
"Rob and Kristen had dinner at The Soho House in West Hollywood Saturday night and they looked like a couple, smiling, holding hands.
"It was like old times. They were with a few other friends, two guys and another girl. They sat in the restaurant. It's really romantic," a source said.
According to reports Pattinson had forgiven Stewart for her infidelity after she convinced him that she hadn't slept with Sanders.
"Both Rob and Kristen were laughing a lot with their friends and stayed for a pretty long time. Like from nine until past midnight. What's funny is that they acted really comfortable with each other, like none of that affair drama had ever happened. They didn't act awkward or embarrassed at all. It was great to see them back together and happy," the source added.