Our daughter, Allie, turned 16 way too soon for our liking. I knew she wasn't sexually active; frustrated, boyfriends came and went. We were open about everything, and she had promised to tell me when that changed, so I was sure. But I convinced her to get an implant "just in case" and for "when it happens." Seventeen came and went, still a virgin. She turned 18 in spring of her senior year. I was afraid a drunken prom da...