I blinked as the game froze, and then I looked sidelong at Luke. Why did I get the feeling I'd stepped into a minefield and hadn't seen any signs.

"Yes..." I said, slowly, warily. "She told me she wanted a sleepover with Johnny, and she couldn't understand why he was uncomfortable, and I told her that of course Johnny was uncomfortable for, you know, reasons."

I sighed and shook my head. "You know, I was fifteen once. I vaguely remember being so. I knew about sex. I know Coraline knows about it too. And while I was a lot more busy to worry about it, Annabeth and I would never have even thought about asking for something like a sleepover. We were friends. And there was more there besides. But we'd both know that was a line we weren't ready to cross unless something really serious was about to happen. How does Coraline not get that?"