Thumb Fall Out Boy rocker Pete Wentz was out and about in Beverly Hills on Tuesday with his picture perfect family, son Saint Lazslo and girlfriend Meagan Camper. The party of three were all smiles as they left a building and headed to their car.

Meagan, who was carrying an armful of colorful blankets, donned an all-black ensemble for the Tuesday outing. Wentz, who still seems to have that platinum hairstyle, also went for a black outfit. Their baby boy was oh-so-adorable in a patterened blue onesie.

Too cute!

During an interview for On Air With Ryan Seacrest in September, Ashlee Simpson's ex told Seacrest that the birth was a hands-on experience. "I put on the scrubs and gloves and stuff and did the delivery." The 35-year-old added, "After the head came out, I was there, you know, and all I could think was, 'Please do not drop this baby.'" He added, "Newborn babies are super slippery."

Let's hope Petey didn't drop Saint!