I know they adore each other and are emotionally codependent. But we don't see much physical evidence of that, other than AJ crying if Zack cries, and both of them being out of sorts if one is absent for some reason.
Well I guess that's not entirely true. They do sit together and cuddle.
But yesterday AJ hugged Zack, and Zack hugged back, and it was very possibly the cutest thing I'd ever seen.
|AJ: "aw, I love my brother." Zack: "Whatever, as long as I can still watch You Tube...."