It was a family affair Saturday as Lynne Spears hung out with Britney and her sons Preston and Jayden for an overnight visit at the star's Studio City home.

In town since Wednesday, Lynne and Britney have been enjoying some mother-daughter bonding, shopping at the True Religion warehouse and Pottery Barn on Friday before enjoying a "girls dinner" of salad, sushi rolls, and fish at Bond St. restaurant with two of Britney's pals.

"Britney walked in with a big smile and introduced her mom to the staff," says an observer. "She looked gorgeous, and I have never seen her in a better mood. She was laughing the whole time she was here. Britney seemed to have the best time hanging out with her mom and friends."

Meanwhile, dad Jamie spent the weekend at his new house in Santa Monica!
I think this is so good for Britney!!! Brit is back!