In the mirror, I could see her very gently and sensuously moving her middle finger back and forth across her little choot, dipping it into the crack a...little bit each time. I knew what she was doing, and it turned me on something fierce. My little sister was actually bringing herself off with her finger, and I was watching her do it!! Then, Sis took her hand off her tits and put it against the mirror. Steadying herself, she spread her legs and bent her knees awkwardly, then slid her other hand. She actually told a complete stranger that she would suck his cock if they met. I guess I should have been mad at her saying that. But, in reality, it was what I was hoping she would say. “Really?” “Yes. Really, I would suck your cock.” She looked at me and smiled. I smiled back. I’m sure she could tell I was aroused at the course their conversation was taking. Her new friend didn’t type for a moment. I knew he was thinking. I wondered what his next move would be. It didn’t take long before. TimWhen we got to Geometry class, we were required to do some vector diagrams. I was sitting next to Jane, and Tina Minner, the class bitch, was seated right behind Jane. She held her hand up. "Mr. Riswell", she said, "May I move to another seat?" "Why would you need to move to another seat?" he asked. Tina replied, "So I don't have to look at these putrid scars all week." Mr. Riswell got very red in the face. "Tina, I think you could show a little more compassion toward your fellow students;. On her birthday I took her out to a nice restaurant that we liked for prime rib. I ordered a bottle of wine for us even though we usually only got a glass. Before dinner arrived I gave her the pair of diamond earrings that I had gotten for her. Needless to say, she loved them. After the wine was gone and between the prime rib and desert I slipped my hand under her skirt and rubbed her pussy mound. The first time, she pulled my hand away and gave it a little slap but when I put it back she left.