Robert Pattinson and Kristen Stewart are happier than ever.

Although the couple went through a rough patch and briefly split when Kristen's affair with married director Rupert Sanders was revealed last year, they have put it behind them and were openly affectionate at a dinner with friends in Los Angeles to celebrate Kristin's 23rd birthday on Wednesday (10.04.13).

A source told HollywoodLife: ''They were so cute together, they weren't glued to each other's side,'' an eyewitness tells us. ''Kristen was being a good hostess and working the room. But whenever they were standing near each other, they were touching. Rob had his arm draped around her a lot and every once in a while they'd sneak a kiss. They both looked so in love!''

''They were listening to indie rock, lots of Black Rebel Motorcycle Club and Father John Misty. It got pretty loud, it was a great party!''

Afterwards they attended Hanson's album release party at Los Angeles Jane's House Lounge, along with friends Nikki Reed and Ashley Benson.

An onlooker said: ''Rob came in and sat down alone for about five minutes. And then Kristen came in with a security guard and sat down next to Rob. They were all hanging out in front of the other guests and looked like they were having a great time together.''