It didn't work all that well and during my junior year our relationship slowly but surely deteriorated. I was distressed, but in my heart I knew I was...right. A boy of nearly 17 should stay away from a girl of just 13. Right? Age of consent is 16 and that must be for a reason. Right? Sure. Sure! I felt dreadful. It came to a head around my 17th birthday when Emma in no uncertain terms let me know that she expected me to invite her as my date to junior prom or else...I was saved from making a. But, another part of me was urging me to behave myself with my sister no matter what she was about to say. Of course, my cock was now so hard that I was in pain due to the confinement it was in."Well, big brother, we could pay our check and hurry back to the hotel and fuck like rabbits. Before you say anything, I have wanted you for years and that is the reason I wanted you to come along. When I was ringing that bell today I was wishing that I was sitting on your lap and that I was fucking that. His eyes widened ( since this is our first experience, I am dominating but I like to be submissive and get crushed under a man) I removed his shirt and started kissing all over the body, his chest is full of hair which made me even hornier.. I removed his pant and underwear and saw the black beauty in its full form for the first time, hiding in a forest full of hair, around 7 inches long and very think. I smiled at him and started stroking his dick. He too got turned on fully and asked me to. I tried not dwelling on it for too long, & got back to work.I went back to doing my math problems. Some of them were hard, some of them were easy. It started getting harder near the end, so I had to start thinking harder, but for some strange reason, I couldn't. All I could think about were that girl’s breast. The strangest thing was that I didn't even want to think about her breast, I just wanted to get my work done. I tried again to do my work, but still, the site of her large breast jumped.