Gisele Bündchen celebrated her stepson Jack's 17th birthday with heartfelt tributes on Instagram, sharing touching throwback and recent photos that highlighted their special bond. She praised Jack for growing into a 'beautiful, kind, and incredible young man' and expressed gratitude for having him in her life. Tom Brady also honored his son with an Instagram post, calling Jack 'the kindest, sweetest, most thoughtful 17-year-old' and reflecting on the joy of watching him mature. Their co-parenting dynamic remains positive, with Bündchen emphasizing her role as a supportive figure. As they navigate life post-divorce, both parents continue to cherish their relationship with Jack, who is the son of Brady and actress Bridget Moynahan. The occasion showcases their commitment to family despite personal changes.