Awoken from a dream

I open my eyes, awoken from a dream. A good dream, I was pounding my wife from behind. Her sister watched from the door while sucking on a big red dildo. I reach for my still hard cock, remembering the sounds of my wife's moans. I take my rod out and stroke it a couple of times before I realize I'm not just remembering the moans from the dream, I'm actually hearing them right now.

What is that? It sounds like Megan. I stuff my cock back into my boxers as best I can and get up to investigate. The sounds lead me to the TV room where Megan and Sam were watching the movie. I hear a man's voice grunting and a woman's moans, it still sounds like Megan to me. I creep up to the doorway, afraid of what I might see. As I get closer I realize there is a third person moaning another woman. What is going on?

I step into the doorway and see my wife and my sister-in-law on the floor with their naked asses up in. Kenny is behind Megan sliding his cock into my wife's waiting pussy. Kenny has one hand on Samantha's ass and appears to thrusting a couple of his fingers in and out of her tight lips.

My anger begins to rise at the sight of another man fucking my wife, but at the same time my cock also rises as I take in what otherwise would be a very erotic sight.