Well, besides calling one another by our first names, or names taken FROM our first names (since neither of us care for our full first name all that much) we do call one another various things. I usually call him "pumpkin" for his fiery bright red hair, or things like.. sweetie, hun, hunny, dear, etc. He'll call me gorgeous, babe, baby, sweetheart, and lately he's taken to calling me "mama lioness". xD
So far, he loves being called pumpkin the most. Apparently not many people came up with good endearing names for him!