Douglas was the youngest of my extra-marital flings. He had just turned 18 when I met him. I had gone to a garden centre on the outer edge of the town to look for some new plants. It was a hot day and, as I walked around the centre, I saw that some of the young men looking after the plants had removed their shirts. Now, there's something quite sexy about a fit young man, bare from the waist up and sweating as he works, an...