from the
live chat:
Chely: James patronus is a stag and lilys a doe is that a coincidence?
J.K. Rowling: No, the Patronus often mutates to take the image of the love of one's life (because they so often become the 'happy thought' that generates a Patronus).
What would your Patronus be? (maybe include a picture?)
Mine would probably start out as a little Hello Kitty type cat, but mutate into a lion because of my husband being such a lion fan. ♥