Gummy (due to the fact that she looks like a gumdrop when sitting.)
Bittles and skits
Bit-butt (do you see a trend here?)
Princess Pretty Pants
Pretty Pretty Princess
So as you can see, Argos and Romeo are getting "slighted" in the nickname department. I don't imagine that will last for long... remember that we had "the girls" for over a year before we got these two.