I was visiting my parents and staying at theirs for a few days. I had some trouble relaxing so was still awake during the early hours of the morning. I heard some noises through the walls and it soon became apparent that my parents were having a little play. Rather than feel disgusted, my pussy immediately became wet and I was so turned on. I was listening, hoping to hear more and I had never been so turned on in my life. My parents then started fucking. I could hear the bed creak, step-dad's body slapping against mum's ass as he fucked her, her groans of pleasure. All of it was so horny and I had to play with my pussy at the thought of them fucking...and film it for the world to enjoy! (This is a fantasy based roleplay and everyone in the video, both seen and heard have given full consent and signed model release forms)