** and telling wife about her sister

I know all about this. My wifes sister is 7 years older than my wife and about 80 pounds heavier. My wife is a super ** **. I was caught ** one time by my sister in law. She sat there watching me and playing with her fat **. When i was done i realized she was there. I told it was fine and it has been ongoing now for almost 15 years. We havent had **, but we regularly ** for each other. She did let me ** her on a few occasions, and i shoot my load on her sometimes. Super hot. I love the secret fun we have

That's hot!