My parentshad left me alone in the home for the night safe inthe knowledge that Casper would look after me. Being a15 year old girl being left at home...I was prettylimited as to what I could really do to entertainmyself. So I decided to take a bath and as alwaysCasper followed me in and sat next to the bath whilstI bathed. As I was washing myself my whole body seemedto become all tingly and as I started working on thetop of my legs I accidently brushed my finger acrossmy clit a gasp escaped my. I couldn't hold my cum in any more, and it shot out, all over my chest, I scooped it up with my hand and savoured the taste. Meanwhile whilst enjoying the taste of my orgasm, my asshole reacted to it by contracting around his cock. The tightening of my entrance clearly had a massive effect on my black lover, he thrust a few more times, but he was clearly close to being spent.He groaned deeply as he came. I could feel hot squirts of cum deep inside my asshole. He must have created a huge channel. This only proved to make her hit harder. I just hoped that I would pass out soon. She would stop periodically and listen to me cry and whimper, but then She would start up again. It felt like this must have gone on forever. After what seemed like hours, She stopped. My bottom and legs burned. She left me there for another eternity. Finally, I felt her cool hands remove the tattered stockings from my legs. Then I could feel her put some kind of ointment on my legs and backside. The ointment. So I will either have to kill you, or transform you. Which will it be?"My male pride almost did me in. I started to protest, to tell her that I didn't want to be a monster. Instead, she put her finger on my lips and told me, "Shhhhhh. Don't answer... I can see what you want in her eyes." With that, she bared her fangs, and bit deeply into my neck.. I got very drowsy, and my vision started to fade again. Before I passed out, though, I felt her kiss me. I could taste my own blood on her lips..