She felt me let go just as she was getting close and reached down between us. I've never been ready to go again without even pulling out, but I've als... never had a chance to watch my hot little sister bring herself off while my half hard dick was in her to the hilt. The second time took a lot longer but was still over way too soon.I was so wiped out when I left her I thought I'd fall asleep halfway back to my bed. Instead I laid there thinking about what I'd done. None of my fantasies had. She was more worried by my arm than anything else. I showered and shaved, dressed and went down to breakfast. Weena had already fed Patrick. I took the phone and sat down near him — but not near enough that he could smear his breakfast on my shirt. Weena brought me a mug of coffee."Just toast?" Do we have any bacon?" Some." Could I have toast and bacon?" Sure, my little telly star." Patrick, too." Yes, sweetheart, you too."I relaxed a bit. At about a microsecond after nine, the phone. As I was walking to my room, I went past my sister's room and heard a male voice saying, "Oh ya, deeper, take all of it." I pushed open the door a little and looked in. There was a boy sitting on the edge of my sister's bed with his pants on the floor and on the floor, with her top off and his cock deeply in her mouth, was my k** sister. His eyes were closed and her back was to me so neither of them saw me.My sister is Janet. She's a petite little fifteen-year-old. She's 5'3" and I don't think. It was just that this company insisted that I was present when the new software was installed on their system. I decided to go down to the kitchen and get a mug of tea, as I turned on the light I noticed an envelope propped up on the tea caddy. I opened it up and discovered a letter from Sue which said that she had left me to start a new life with a younger man she had met at the gym and that she did not want anything from me and I could keep the house, which was nice of her as I had paid for.