Robert Pattinson and Kristen Stewart are both back in L.A. before Breaking Dawn duties start up, and they wasted no time getting together.

A clean-shaven Rob and a naturally glowing K.Stew were spotted in West Hollywood Saturday night totally displaying their affection for one another during a dinner with friends.

"They were staring at each other throughout dinner and kept stealing quick kisses from one another during the night," an eyewitness tells E! News. "Rob's arm was around her for most of dinner and they kept looking at each other and giggling throughout the evening. They are definitely into each other."

Stewart arrived home to L.A. less than a week ago from filming On the Road in New Orleans and Arizona, while Pattinson just returned from London. And it seems like distance hasn't kept these two apart!

"They were by each other's sides the entire night," adds the eyewitness. "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."

One friend in the six-or-so-person entourage was Tom Sturridge, Kristen's On the Road costar and one of Rob's best mates. And yes, although Rob has shaved that beard to get into Edward form, Tom still had the yummy scruff going on.

Stewart, dressed casually in jeans and a black hoodie sweatshirt, was sporting lighter hair still, def not her Bella 'do, while Pattinson covered his hair with a black beanie that showcased his freshly shaven face.

We're told the two were having a great time with pals and were undisturbed by the many gawking patrons, even tho its the hottest and most exclusive hang in LA right now. E!OnLine

Since it was Taryn Ryder who spotted Rob and Kristen last night, this report is already expected.  The PDA report coincides with tweets from 2 different people. One of which was from  Alyn Weisman who also works for E!