Pax Gets a Bad Case of Brain Freeze

Bill and Jane Pitt have been spending a lot of time with their grandchildren! Brad Pitt's parents took Pax and Shiloh for an ice cream treat this weekend in Venice, where it looks like Pax suffered from a serious case of brain freeze! He even had to brace himself with sister Shiloh's hand to endure to he cold rush! Shiloh finished her cone before Pax and was looking for some more!

The Jolie-Pitt brood has been going out on a bunch of outings in Venice, while mom Angelina Jolie is busy shooting The Tourist.

OK! NEWS: ANGELINA JOLIE'S KIDS LOVER HER MOVIE STUNTS

Last week, Brad and his parents took the kids to the park for a day of fun on the jungle gyms!

OK! GALLERY: BRAD & HIS PARENTS TAKE THE BROOD TO PLAY IN THE PARK