Sean Penn was photographed goofing off with his girlfriend Charlize Theron’s 2-year-old son Jackson during an outing to a West Hollywood Whole Foods this week.

As Theron stayed busy shopping for grocery items, Penn kept Jackson entertained as he sat in the front of the shopping cart. The actor was seen making silly faces at the toddler.

According to E! Online, their latest outing serves as another confirmation that they’re happily dating.

They were first seen vacationing together in Hawaii over New Year’s, and they’ve since attended their first high profile event together although they walked the red carpet separately.

Penn is obviously smitten with the South African-born Oscar winner, as CNN host Piers Morgan revealed that he called her a “keeper” at his Help Haiti Home gala on Jan. 11.
“She's a keeper, that's for sure . . . well, I'll do my best to keep her anyway!'" he told him.

Penn has two children of his own; daughter Dylan Frances Penn and son Hopper Jack Penn. He's been married twice - to Madonna and actress Robin Wright.

image: Wikimedia Commons