A couple of hours after we fucked, she jumped up, went to her room, and started getting ready to go to the mall. I took a quick shower. Then we both jumped in my car and headed out. On the way there, I wasn’t sure what to say about what had just happened....

My sister and I had a normal relationship. Like most brothers and sisters we would annoy each other. But, we also had a lot of love for each other. I had recently graduated, and she was a freshman in high school when this all happened. I suppose I should...