With former son-in-law Kevin Federline away in North Carolina shooting his appearance on ‘One Tree Hill’ and Britney Spears speeding to parents in Las Vegas, Britney Spears’ parents Lynne and Jamie are currently caring for their two grandsons, twenty-three month oldSean Preston and Jayden James, eleven months.

The grandparents took the boys for a walkin red strollers shaped like motor cars near Kevin’’s rented $3 million mansion in Tarzana, Calif., on the evening of Aug. 24.

“Sean Preston kept telling Jamie “”I love you pa, pa.”” Jamie replied ““You love your pa pa, don’t you? Yes, u do!” says a spywitness.

““It was a really happy scene,”” says the OK! eyewitness. ““You can tell the boys really enjoy spending time with their grandparents. They looked healthy and their hair was nicely combed. Lynne and Jamie were bursting with pride.””