Blackmail SeXStoRY

I want you to know that this storie is completely true apart from the names used. It was about a year ago that i was driving home from a Golf day on the outskirts of the City. I was about 30 minutes away when i decided to stop of at a pub for a swift drink. It was while i sat at the Bar that i noticed her, her being my s****r-in-law.The problem was that the Man she sat with was certainly not her husband Andrew, and they definatley seemed to be enjoying each others company. I quickly moved to a vantage point so i could see them without them seeing me, there was a lot of hand holding going on and even the odd kiss. As i continued my journey home my mind wandered to Sue and her "Friend", the truth is that of all my wifes s****rs Sue was by far the most attractive and had a wonderful body with it, i'd always been jealous of her husband. It then occured to me that Sue seemed to have a decent life at home. Her Husband made a very good living and she wanted for nothing. A week passed and after a lot of thought i called in to sue and andrews house on my way home one afternoon and just as i had planned Sue was alone. After some small talk i told her that i had seen her the week before. You could see the panic on her face straight away, she said it was just a fling and that she never intended leaving her hubby. Imust admit that it felt great to have some power over her and my cock started to swell in my trousers, i took her hand and put it on to my by now stiff prick. Sue had a puzzled look about her but i soon put her straight. "I've got the house all to myself on Saturday and you are going to come and spend a few hours with me". She got the idea pretty quickly that if she did'nt agree i would be having a word or two with her husband and she would lose everything. The next two days seemed to take forever to come round but eventually Saturday arrived. I saw Sues car pull up outside and the very sight of her sent the bl**d rushing to my cock. She came in and i could'nt hold back any longer, my hands were all over her. She was there to do what ever i wanted. I put my hand up her skirt and on to the gusset of her panties and to my surprise she was already wet.After rubbing her for a few minutes i stood back and took of my trousers and boxer shorts, my cock sprang out and i'm sure it was two inches longer than i've ever seen it. I told Sue to take off her Blouse and Bra and then bent her over a armchair while i pulled down her skirt. I pulled her painties to one side and got my first look at her, it was even better than i had imagined,she had the pussy of a porn star. My tongue plunged into cunt while the tip of my nose nuzzled against her ass hole, i was lapping it up, all the while i was gently wanking my hard cock. At this point Sue surprised me by saying "I want to suck your dick", so i sat in the chair while she took me in her mouth, she certainly knew what she was doing and it was all i could do not to come as her tongue went between my balls and my ass. I could'nt wait any longer and i really wanted to be inside her. She was kneeling with her elbows on the armchair, she really looked gorgeous, i got behind her and slowly pushed myself into her. After about ten minutes i was at bursting point but then it occured to me that i was in charge and i could do what i wanted and seeing that she seemed to be enjoying it, i told her"I'm going to cum soon, but first i want to fuck you up the ass" I had her cheeks spread and was teasing her ass with my thumb. then i spit onto my hand and rubbed it around her tight hole. I started edging my cock into her ass, it was'nt easy but i managed to get about three inches up there, i rocked gently in and out, it was the best feeling ever and Sue had her right hand rubbing on her clit. Now i could not hold back any longer and told her to turn onto her back and push her tits together. I came harder than i ever had before and collapsed in a heap. Sue cleaned herself up and left. This all happened about a year ago and we have'nt done it again, but sometimes at f****y get togethers and if no one is watching i slip my hand onto her beautiful ass.