Britney Spears tells OK! magazine she's focused on family life these days, looking forward to her two sons meeting their new cousin, daughter of her sister, Jamie Lynn Spears.

"She's going to come out here for the kids' birthdays," Spears, who lives in Beverly Hills, Calif., says of Jamie Lynn. "It will be the first time the cousins meet. I'm sure the boys will be like big brothers to Maddie," who was born June 19.

Spears, 26, flaunts her maternal side in photos with sons Sean Preston and Jayden James on the cover and inside pages of the magazine.