My wife was hesitant at first but once she did it and saw my reaction, she started doing it. We were at a nude beach, my wife, myself and her lover. It was obvious I was the third wheel. A couple came over and talked with us. The other wife asked my wife why she was ...... with the other man. My wife looked at me and said, “I love my husband, but look at his cock. It is really only good for his hand.” Then everyone there of course looked at my cock and I got hard at my thin 4 inches. The other lady gave a little laugh and said, “I see what you mean.” Once they left my wife asked if I was ok, and I told her yes. It was kinda exhilarating. That evening when my wife and her boyfriend were fucking, my wife said, “you are so much bigger than my husband.”