My wife had told me that in her younger days that her sister was a prostitute. I had never met her sister and was always intrigued since my wife always seemed a bit reserved sexually. We had been married for almost eight years when one day she told me that her sister was coming to visit after her recent divorce. I began fantasizing about her and I wasn't disappointed when I finally saw her. She was a stunning red head with long beautiful legs and a nice set of boobs.

I could feel that when she gave me my fist hug that she was not wearing a bra because her nipples were digging into my chest. I accidentally brushed against her breast as we let go of one another and the look she gave me told me that we would be having some wild sex soon.

We got back home and I carried in the suitcases and showed her to her room and she gave me another one of those "play me" looks.

I heard the jacuzzi kick on in her bathroom about the same time my wife told me that she had to go to the store to pick up a few items for dinner. As soon as my wife left I tapped on the door of my sister-in-laws room and told her if she needed anything to let me know and that my wife had just left for the store.

A few minutes later my sister-in-law called me and said that she need some help with the jacuzzi. I went into the bathroom and there she was naked bent over the jacuzzi. I figured this was the only invitation I needed so I dropped down behind her and stuck my tongue deep into her softness. She acted shocked and turned around and sat down the edge of the tub and spread her legs. I moved up to her and gave her a passionate soul kiss and proceeded down to her boobs and began sucking on them. I couldn't believe it but she came from me just sucking on her nipples. My wife takes forever to cum. As she lay there quivering from her orgasm I toyed my way back to her beautiful softness. I took her personal place and sucked it into my mouth and began running my tongue over it like I did her nipples and she came again. I then had to put my tongue up inside of her and toy the juices coming out her soaking wet softness. I practically ripped my clothes off and laid my gorgeous sister-in-law down on the floor and drove my length deep inside of her. We played until she came again and I spewed my load inside of her. After we recovered I looked at my watch and realized that my wife could be back any minute so I quickly got dressed and came out of my sister-in-law's room and seen that my wife was already back and in the kitchen making dinner. I was so nervous but my wife has never said a word about it to me and that was three years ago. My sister-in-law moved to our town and I regularly go help her with her jacuzzi.