My sister in law gave me a blow job one morning and I am worried she is going to use it against me somehow. It all started from a get together we had with a few friends and my wife invited her over. I have always liked her and thought she was a great person just a little wilder than my wife. I figured it was because she was single and just was trying to be hip and keep up with the people she hangs out with. I knew a few of the friends were single so maybe she could find one of them to be attractive and you never know. The evening went along very well and everyone was having a great time and at some point I left the patio to go to the bathroom. When I was finished I opened the door and she was in the doorway like she had been right against the door when I was in the bathroom. I asked if everything was alright and she told me it was great and that I was a great guy to her sister. She went on about relationships and how most of them were horrible and the next thing I know she kneels down and is trying to pull my pants down. I started pulling on them and asking her what she was doing. She looked at me like I was crazy and told me she wanted to blow me. I pulled up to her feet and told her that was not going to happen and she needed to get herself together because she has had to much to drink. We went out to the kitchen area and started socializing again with everyone. Well the night went great and my wife told her to crash in one of the spare bedrooms instead of going home. My first thought was not that great but I brushed it aside and knew she would sleep it off tonight. I awoke in the morning to the wonderful feeling of having my wife under the covers giving me a blow job. I was not even suspicious of anything as I was waking up because it was not unusual for my wife to do this and sometimes she would mount me after a few minutes and the view of her on top of me in the morning was a beautiful site. She just kept at it though under the covers until I orgasmed and I was in complete shock when the covers flung back and there was my sister in law staring at me. I freaked out and asked what the hell she thought she was doing and her reply was that she has always wanted to give me a blow job. Don't worry she said my sister went to workout at the gym. I was laying there just thinking that if the rolls were reversed I would be arrested for rape. Now I just think she did this to somehow use it against me and it is driving up crazy. She has never even tried to do it again but I always keep her distant and I am worried that my wife is going to wonder why I treat her differently.