Sarah had told me once, a long time ago, that she had a fantasy of being surprised in the middle of the night, so I put my plan together without telling her. So, the biggest risk I ever took was going to her house one night, as I knew they didn’t lock the back door and that her husband was a very deep sleeper. I snuck in very quietly, crept through to the hall and was hoping to catch them fucking. I listened outside their...