Ernie MacMillan gets a job... at The Quibbler.

Luna Lovegood's cat has gone on holiday... in the Hufflepuff commons. Ernie's cat befriends him. This is not their story. It is, however, the beginning of a story of a Loony girl from Ravenclaw and a Prefectly boy from Hufflepuff...

Luna tiptoed around his sprawledout position in front of the fireplace. Ernie started to turn his head to see where she was going, but she caught him before he moved too far, poking the side of his head with her rainbow toesocked foot.. ErnieLuna, oneshot

Tonks isn't very good at sharing. Oneshot.