Shawn Johnson is giving fans a glimpse into her and Andrew East's eldest son Jett's passion with dirt biking - even if it's aging her far quicker than she'd like. "I just lost 3 years of my life watching Jett ride a real track for the first time. Thank you to @fastfarmsmx for the INSANE amount of guidance and grace you gave us! We were a literal circus out there doing everything wrong we possible could hahaha and still left with Jett saying, 'I want to do that forever and ever,'" Johnson, 34, wrote via her Instagram Story on Sunday, May 3.