Looking back, it was all my doing. I should never have told Mike that I fancied Leanne, my wife's younger sister. In the four or five years I'd known Mike, he was always asking about Leanne, as though he got off on the little things I would mention about her whenever she visited. He'd never met her, and so would ask me if her tits were better than my wife's, Rachael. "Did she wear that skirt with the split right up the ba...