I'd been dropping the idea into our sex talk for quite a while. When she went on a night out without me I'd always say, "Be good, and if you can't be good tell me everything that happened when you get back," but I didn't think it was ever going to happen. That night she'd left the house and I'd kissed her at the front door and said my usual line, and said a silent prayer, but guessed that would be as far as it went. I had...