hmmm I don't really have specific pet names. I don't like the idea that a pet name is owned by anyone. The only one that comes to mind, really only applies to Pengrah. I call her "my milky way" because of how she brought me out west and has VERY milky white skin. It really wouldn't suit anyone else.
Otherwise the rest are fair game. Maybe I will develop more specifics as they come along in the relationship. I figure their names are unique enough haha