I'm Eva, I'm 20 but back when this story happened, I was just 16. I had long, dark almost black hair down to my waist, and matching brown eyes. At this age, I'm still a virgin. I arrived at my friend Melissa's house at 8pm as we'd arranged, but she was late getting home from her boyfriend's house. Her brother, David let me in though. I'd always got on well with David and as I walked up the stairs in front of him, I could...