My wifes sister
When my wives sister turned 18 we had her birthday party at our house and invited a bunch of her friends. As the night got later my wife had too much to drink and passed out. I got her upstairs to our room so she could sleep it off. While my wife was passed out upstairs, I was f****** her sister on the couch downstairs in front of her friends. We were both completely naked in front of all of them, f****** as hard as we could. They were cheering us on the whole time and when I finished she swallowed every drop of c** I shot in her mouth. The party went on the rest of the night and she and I didn't bother getting dressed. A couple of other girls there gave me b******* and about 3 am I ended up f****** my wife's sister on our dining room table. This time one of her friends got naked and I f***** her also. I ended up c****** in her friends ass. My wife never woke up during any of this and she still has no idea.