For previous insights as to why I will never call my Bug "Princess", check out my posts with the "mirror, mirror..." label.
Every now and then, someone will try to call our Bug a princess, justifying it with, "Well, she's God's little princess since she's a child of the King." Technically, yes, that's true, I suppose. But it's that whole connotation of a princess being spoiled and coddled that I have a problem with.
For some truly insightful words on this topic, check out this post from Toddled Dredge.