I was 17 at the time and my younger sister, Abby, had recently turned 16. My teenage hormones were really raging in those days as I tried my luck with a lot of the girls I went on dates with but got shot down somewhat routinely. As a result, I was rather inexperienced and I believe Abby was too.Abby and I were pretty close as brother and sister go, I think mostly because we were so close in age. Occasionally we would hang...