They’re about as different as possible, but perhaps that’s what draws them closer. Their relationship is that of the sand and the tide; sometimes they roll as one, and other times they churn about in grinding anger. But always, always there is love that binds their hands together, and a seal placed over their lives that no one can ever break or separate.
They’re together beyond the calling of their shared blood; beyond the instinct that compels them to love their family. They’re better than friends, and may no one ever try to put an end to that.