One time I snuck a peek... Mom was up on her knees and Dad was on all 4's behind her with his face in her butt! She was telling him to stroke ... stroke ... stroke but poor dad's dick was stuffed in some kind of plastic thing and all I could see was his purple balls swinging in the breeze... he was kinda moaning and begging all at the same time... Mom was laughing and telling him... stroke it .. come on big boy... make me cum...