Our friend, always welcome, this time brings an unexpected heat. My wife, usually reserved, seems to shed her inhibitions as they laugh, their bodies inching closer. I leave them to it, but curiosity draws me back. There, in our living room, she's riding him, her breasts bouncing, his hands gripping her ass. His thick cock stretches her, her wetness glistening as they fuck, her cries of pleasure echoing, her climax pushing him over the edge.