That familiar sound...

"Yes, yes, yes -- fuck me." I heard my wife and her lover moaning and groaning and the sound of bodies slapping together. It sounded like Bryan was pounding her good. My conservative wife was being pounded by her first new cock in years and she seemed to be enjoying it. 

Very quickly I heard the familiar sound of her having an orgasm followed quickly by loud grunts that I presumed was Bryan unloading in her hot wet pussy...