I knocked on the door and no answer. I turned the door handle and slightly opened the door. My jaw dropped. Tim was laying on his back, eyes closed on...Sabrina’s bed. Sabrina was kneeling between his legs, fist full of cock, and her lips wrapped around the reminder of his dick. I couldn’t help myself. I pulled my penis out of my boxers and started tugging. She hadn’t noticed me standing in the door way. Tim put his hands on her head and started trusting upward. She put her hands on the bed to. Ana was slamming down on his huge dick.I watched for a while, until he finally came. Anita then moved to a real slow pace until his spent cock just slipped out of her well cum filled cunt.My wife leaned on him and she kissed our friend. I then had a perfect view of her pussy lips. Her pink cunt was gaped open and cum was oozing out.I saw they were talking, but could not hear what they were saying.Ana suddenly stood up, so I hurried to go back upstairs. I was lying again in bed, when she came. "Sorry" wasn't going to cut it. But his sister, whose own humiliation and disgust was matched only by her growing rage, had plenty to say. But she said it in an eerily calm tone of voice."On second thought, Vickie-pricky, mom and dad would be to mortified to hear what you've been up to. Let's keep this just to ourselves, shall we? But you must be punished for such naughty behavior, right?"Victor was quick to agree although all he could manage was a nervous nod of the head.Judy went on, "You. To make matters worse, Jessica’s happiness with her new job seemed to make her more and more sexually aggressive. She seemed to want sex almost every night, and Billy’s exhaustion and stress kept him from keeping up with her demands. He hadn’t been able to make love to his young, sexy wife more than twice since the move to KNEN six months ago. Billy knew that he was the only thing that wasn’t working out for his wife, and he hated himself for it. Jessica, meanwhile, went to bed every night.