German terms of endearment
What are some common German terms of endearment between lovers? I'm looking at two male lovers, one is six years older than the other, and the younger is a bit immature by both of their standards. ;) The older one would be using the terms I'm looking for for the younger. He uses "junge" already, but I wanted something a bit more intimate than that...and to know exactly what it means! :)
(And bonus points for anything that doesn't require German-specific characters. I compose in text files. ^__^)
EDIT: Ok, got exactly what I needed. Thank you, all!