Someone had better make Ben Affleck a father soon.

During the local shooting of Jersey Girl, he’s been spotted kissing and cuddling more babies than a political candidate with a lifetime supply of Chapstick.

Affleck was at it again Wednesday, when he and costar Liv Tyler visited Mercy Community Outpatient Campus in Haverford to shoot a nursery scene. (It’s where Affleck’s character, Ollie, becomes a new daddy.)

Between takes, Affleck spotted little Shane Kubiak, an extra, there with his parents, John Kubiak, group events manager for Greater Philadelphia Radio Group, and Theresa Marsden, a broker’s assistant for Merrill Lynch.

“He said, ‘Can I hold him?’ ” Kubiak said. Affleck scooped Shane and baby-talked for 10 minutes. Tyler joined in, too.

Shane’s path to stardom was paved by Marsden’s sister, Fran Savastano, who works for Mike Lemon Casting of Philadelphia. Newborns were needed, and Marsden delivered on time.

Turns out that the little guy and Affleck have something in common: They were born exactly 30 years apart – Aug. 15, 1972 and 2002 – a fact that Kubiak says he forgot to mention to Affleck.