Author: koshiroryuu.
Rating: Teen.
Word Count: 1125.
Author's Summary: Sometimes Donna has no idea what she's talking about, but at least she says it with utter conviction.
Characters/Pairings: Donna Noble, Luke Smith, The Doctor (10th)
Warnings: None.
Recced because: Friday should be crack!fic day! This one is funny as hell and had me rolling the first time I read it, and the second, and the third... Koshiroryuu has the Doctor and Donna down pat in this! She also has a wicked sense of humour, and several of her stories reflect that. However I'm reccing this one, because this one made me laugh the hardest...and several of them had me rolling.