Kate Hudson shares an extremely close relationship with her family, but one of her strongest bonds of all is with her brother Oliver Hudson.MORE: Kate Hudson's daring sheer gown has a special meaning behind itThe two have been through thick and thin together, and Kate paid tribute to him in a heartwarming fashion with her latest social media post.WATCH: Kate Hudson debuts brand new look and it's so unexpectedThe Almost Famous actress shared a series of photos and videos of herself with her