On the other hand, she'd only air-kissed Potter so he guessed she had to already know.   It had been months, he thought.  Almost a year.   She had to have figured it out by now.  So not sex.  Books, then.  Research was her hedge against the fear she'd be stuck with him forever, but she didn't own a single book you couldn't find in a shop and she wasn't likely to pick up anything especially useful out in Diagon Alley.   The real information would only be found in far less savory volumes.