My Sister-in-Law

My Sister-in-Law by BobSmith I have been married for close to twenty years. I love my wife but our sex life has always left a lot to be desired. In fact, I usually have to take care of business myself. My wife’s sister, Wendy, is 46 and a few years older than my wife. She has always turned me on, but I never have had the nerve to do anything about it. Well, that changed last week when my nephew, Rick (Wendy’s son) had to enter a local rehab program. My wife was kind enough to insist that Wendy stay with us for the duration of my nephews program. On the second night I was so horny I knew I was going o have to take care of business. And to my good luck, my wife had to go out of town over night. Now, our bedroom has access to a small 10x10 atrium that is also accessed from the living room. It is where my wife smokes as she doesn’t smoke in the house. The little courtyard has a small bistro set and a park bench to sit on. It’s quite nice. Anyway, I started to think about Wendy and then it came to me. I would set it up so that she could see me from the courtyard when she went out to smoke. Just the thought of it made me almost lose my load. I went out to the courtyard and looked at all possible angles of view. I then positioned the vertical blinds to be open just enough to be able to see into the room when the lights were on. My plan was to be oiled and stroking if and when she came outside. About 10pm that night, after the kids were in bed and I had excused myself to my room as being tired, I started to get extremely excited. I didn’t know if I could go through with it. Anyway, I turned on the light and stripped, and took my place in the easy chair that was right by the patio window. I got the oil and started to stroke my manhood. I was erect instantly; just thinking about what could happen made me harder than I have ever been. I stroked myself for over a half hour and nothing. I was getting disappointed but I was ready to cum just fantasizing about it. Then I heard the slider open and close and a fantastic rush came over my entire body!I did not look at the window; I just slowly worked my meat to make sure she got a good view. I could see the glow of her cigarette out of the corner of my eye; she couldn’t help but see me! I started working it faster and faster until I couldn’t stop the buildup. Within 5 minutes, I had the longest, hardest orgasm I ever had in my life! I exploded everywhere! I let myself calm down, and without looking at her; I cleaned myself up and headed in to the shower. When I got out of the shower, she had already gone back into the house. I got dressed and went out to the kitchen to get a drink. Wendy was at the kitchen table. She asked how I was and we went on to talk about my nephew. She never let on that she saw me or saw anything at all. Anyways, I have been repeating this ritual every chance I get when my wife leaves the house, and every time I turn the light on and sit in that chair, Wendy comes out to have a cigarette! And I cum harder then the last time!! I’m way to scared to see if it could develop into anything physical, besides that could hurt too many people, so I’m satisfied with the current arrangement.