GRAND DAUGHTER SeXStoRY

Every day after school the wife would go pick the grand k**s up from primary school, bring them home, feed them, do homework with them and watch tv before their mother would come pick them up when she finished work. This happened up till the eldest was about 15. Old enough to look after the other two when they finished school. There was 3 girls. Louise, Sarah and Michelle. They all had different hobbies. Louise liked music and was always in trouble at school, Sarah more quiet liked computer games and kept to herself and Amy the baby of the girls and she lived up to the name always sooking. The wife and i were retired. I kept to myself, restored old computers and was a whiz at downloading anything and everything. The wife and I still in love although slept in separate beds and hadn't been romantic in quiet a while. I liked when my wife went to the gym in the mornings so I could have some alone time watching you know "special movies". I had always been a sexual man too often the k**s when they were younger would walk in and catch me with the wife on all 4's or on the couch sucking my cock. Oh how I missed those days. It was summer and cute little Sarah came into my office. Secretly she was my favorite of the girls kept to herself quiet and good with computers for someone so young. She was early primary school and walked in with her cute checked school dress on which was far too short for my likings in the past but today something was different. Something about her made my cock sand tall. She was a tall slim girl, just starting to produce tiny bud tits and her legs went on for miles! On this day all I wanted to do was touch her. "Poppy can I do some games on your computer" she said looking so fuckable and cute. "Sure come sit on puppy's lap I got some good games you can try" I said as I adjusted my cock in my pants so she wouldn't feel the huge boldge and ask what it was. I have to say my cock was average size just under 9 inches. As she sat there on my lap playing computer games I slowly ran my hand through her hair and up and down her legs. She was too young to know this was wrong. And I knew she would never tell anyone. I half closed the door to my office which is where I spend most of my time and turned the tv down a little so I could hear if the wife or other k**s were coming. After this I continued running my hands up and down her body before I decided to feel those tits. Just over the clothes I didn't wanna push the limits straight away. Fuck I was horny all I could think about was how great my cock would feel deep inside her tiny virgin pussy, how sweet her pussy juices would taste over my face and how much cum my cock could pump into that pussy. With this thought and without even noticing what I had done my hand was inside her dress squeezing her tiny pink nipples. She never said a word as they hardened in my hand as I pulled and twisted them. As far as she knew this is what you did to your granddaughter when playing games on his lap. As she sat there on my right leg playing away I decided I had to get off before my clock exploded in my pants. I carefully unzipped them taking my cock out and got off. Lucky there was a tea towel on my desk from god knows what for me to cum into! Sarah didnt move as I pounded it and came harder then ever before! I cleaned up and said to Sarah " come on your mum will be here soon get your stuff ready" and off she went! I knew what I was thinking about was wrong. I knew what I did was wrong. But all I could think about was touching her pussy next and every day she was here. That night I decided I had to fuck my wife I didn't care what she said. That night I snuck into her bed and started passionately kissing her. " what are you doing John she said" pushing me away.