She's a Cookie Monster

My girl has been killing with her want-a-cookie routine. It goes like this:

Harper: (holds out drooled-upon, soggy, half-eaten cookie in my direction, smiling as above.)

Me: Oh, thank you, Harper, I would love a bite of your cookie. (opens mouth and leans towards cookie.)

Harper: (snatches cookie back.) Mwa ha ha ha ha!