Heidi Klum is a fun mom!

The mother of four took daughters Lou and Leni on a little shopping trip on Sunday. The 41-year-old treated her lil' ladies to a shopping expedition at a trendy children's boutique Un Deux Trois in Brentwood, Calif.

The girls were all gussied up for the outing, while Mama Klum dressed down in jeans, a black top and flip flops. The Project Runway host pulled her hair back in a pony and hid her eyes from the Cali sun in aviators.

On June 1, Heidi celebrated her 41st birthday -- and the German beauty is showing no signs of aging. The supermodel has been dating the much younger Vito Schnabel -- but it looks like 27-year-old boy toy let the ladies have a real gals' day. Lucky ladies!