This is delightful and I can't wait to see what comes next. Leave it to Donna to ask the one obvious question that no one else has ever thought to ask. Donna is awesome, after all, no matter what universe.

I love that they threw the Doctor a surprise party, and have an especially soft spot for the way you wrote Tony. I can just picture him absolutely worshipping the Doctor ... to his mother's complete dismay. *g*

Can't wait for part 2. :)