Again, that night. The groans and the screams came through the walls. Sometimes it sounded like she was dying, and then she would laugh. He was on the bed as soon as he heard it. Hard, in seconds. Pants off, then boxers. One hand under his balls, the other on his shaft. Almost no work to do—he was hypersensitive as if he’d been electrified. This night was louder than usual. Mostly from her, some from him. He decided, in a...