Short and easy read about a man discovering his wife has cheated. Not an erotic read and not a BTB. It is what I feel is a realistic situation and a common reaction and action that follows.
Dinner with Ali and her husband becomes teasing and secrets. He shows us her and his nude photos and more. He stripes her after an accident and has Al finger her while he and Al's wife watch.
Girl made horny by days events, has boyfriend over to watch some porn. He brings a friend. eventually she seduces him while friend watches. Then with him asleep she engages in mutual mastubation, ending with a romp in the bathroom.
Neighbors who live so close to each other get into different parts of each others personal lives. Sometimes they get a bit too close and into some parts they might regret later