It may seem strange that I am living at home again. But if you have seen my sister you would instantly understand why I do. A bit like the erection I get when she often looks at me. And them tits and her suckable nipples. Along with her tight squeezable bum don't help to keep my erection at bay. One night our parents went to visit some relatives for the weekend. So my sister must of thought it would be fun to tease me. After her getting a shower she came into my room wearing just a short bathrobe. And she started to bend over in front of me. As she stood up again her tits were hanging out of it. And she just laughed at the expression on my face. Then she bent over away from me while drying her hair. And I could see she had not panties on. So instantly I got an erection and I think she happened to see it. Just to confirm the fact she said. While I get dried why don't you just get it out and beat it for a while ???? Then I might give you something to look at while you are doing it. Then she dropped the bathrobe on the floor. And asked if I liked what I see ???? She came over to me and pushed me down on the bed. Then she took me in her hand and mouth. While she slid her body around into a 69 position and asked me to lick her pussy for her ???? After we had a few licks at each other she squatted over me. And then she held my cock up near her pussy. While she lowered herself onto it. To say it was the best sex I have ever had would be an understatement. Soon I could feel my balls tightening and then the rush of sperm as it flowed up my cock. Before she could jump off me. I sqyurted her pussy full of my baby making cream. She went mad with me but I just said you were the one on top. So she forgave me for a while. Though that was a bit short lived because she has missed her period. And now she is going mad with me again. Not only for me making her pregnant but also making a joke of it. When I said to her you will be able to ride me all you want now. If you are already pregnant.