When I was 12 I caught my older sister who was 15 in bed with her best friend. I watched them eat each others pussy and have sex for 30 minutes before they saw me. I used this to my advantage and blackmailed both of them for a couple of years to get all the sexual favors I could ever wish for. After awhile they got used to it and didn`t mind doing whatever I asked them to do with me. Plus I had them have sex together many times while I watched and got them to do some pretty wild things together. It was the best years of my life but I finally let them off the hook but it was the best time I have ever had.