David Muir couldn't be prouder of his friend Kelly Ripa as she gears up for the release of her first book, Live Wire: Long-Winded Short Stories.MORE: David Muir pays tribute to co-stars and team during royal assignmentThe World News Tonight anchor has frequently shown his excitement for her big achievement, and of course, received a special advance copy of his own.VIDEO: Kelly Ripa and David Muir's friendshipWhile the book officially comes out on 27 September, David was sure to flex his early copy and show it around the world.He took to his Instagram Stories to share a photograph of himself out enjoying dinner, and in his hand was Kelly's book.MORE: Who is David Muir's 'cool' older sister Rebecca? - All we know"Brought you to dinner @kellyripa," he wrote, sporting a cheeky grin, and Kelly returned the favor by sharing it on her own Stories by saying that she was missing him.David has consistently been supportive of his close friend as she makes her debut in the publishing world with her candid release.