Cover StoryBrad & Angelina's Summer Holiday

'LET'S GO!'

Maddox, says an observer, "was very excited watching Brad ride around. He kept looking at his mother, asking when he was going to have a ride." When Jolie gave her consent, Pitt took over. "Brad put a safety helmet on him, then talked quietly to him, showing where to hold the handlebars," the source says. "Brad kept riding back close to Angelina so she could share in the fun."