Rian bit her lip. "You know, if you don't want nicknames..." she trailed off, sure that the two boys would understand what she meant. She started thinking of possible nicknames for Copernicus. Cop (how original), Nic (already said) Nicus (that was different)...Hmm, no Perni-anything allowed...

"That means no Ply. Or Plymm," she bit her lip again, this time thinking. "Um, I'm sure Mouth doesn't work either, since it's part of the body..." she joked, not actually thinking about that nickname.