My wife sits on our family friend's dick

My wife is fucking a member of our family friend. She is riding him, moaning and screaming with pleasure. Her pussy is wet and ready to take his cock deeper and deeper. She loves it, she enjoys it, she wants more and more. Her body shakes with orgasm, she gets high on every thrust. It's so dirty, but so exciting. I look at it and feel horny and envious at the same time.