Help finding a story
I am looking for a story. It begins with the mother coming home, going up stairs, and seeing her husband looking through the bathroom keyhole naked. Turns out he was spying on the daughter showering. The father hurries down the hall when the daughter is about to leave the bathroom. They start having sex and the mother spies on them. She is caught and the father and daughter get mad at her. The son then comes home. The son comforts the mother and they hear that the father and daughter have begun having sex again. They end up having sex.
Any help finding the story would be appreciated. Thank you!