"You're right, if it was a date she probably would have slept with you--seeing as she seems to find that so important." He sniffed disapprovingly, and then looked at the Leaking Cauldron. He knew---he knew that there was no point trying to get in there for a proper drink. Neither he nor Colin looked like they were even close to being of age. "And don't bother with that bloody book, you'll only scare yourself. Sex isn't about science and mechanics--it's about--oh, nevermind."