Remus held the book protectively in his arms, away and safe from Sirius. He shook his head. "That means it's got nothing to do with the curriculum," Remus explained.
The way Sirius grinned at Remus always never failed to make Remus realise why the girls at Hogwarts always fell for Sirius.
He made a vague sound from the back of his throat. "Whatever on earth did I do to receive this honour?" Remus said, half exasperatedly, half fondly.
Remus smiled back finally. "Shouldn't you be re-establishing your status as Most Eligible Bachelor of the Student Populace?" Remus teased. "I don't see any girls around here for you to flirt with."