Jessica Biel had the time of her life during a theme park day out with her oldest son, Silas, and when she shared photos, fans were amazed. The actress had an amazing time with her seven-year-old boy who she took to Disneyland for an adventure. MORE: Justin Timberlake and Jessica Biel are selling their Hollywood Hills homeShe shared a video and photos on Instagram, much to the delight of her followers who couldn't believe how tall he was. WATCH: Justin Timberlake confirms second son's original name While Jessica didn't show Silas' face, she did post a snapshot of him with her arm around his shoulders as they watched the Storm Troopers. Despite his age, he wasn't too far from shoulder height. She captioned the selection of images: "Fully just turned into one of the kids yesterday at @disneyland.