I agree, she's the only one with that face which seemed to have skipped Jake. I wonder if she'll meet her alien "grandparent" sometime in the future.

Also, is there some special meaning behind why Princess bubblegum, Princess business, and Princess beautiful are first identified as "princess" then by their type? The rest are type first, then "princess", ie., Slime princess, Crab princess, etc.. Can this be a hint to their importance, or is it just something random?

I have to ask if I'm the only one who feels this could be an elaborate LSP fan-fic solely based on the way everyone seems to be doing the "LSP smirk".