My wife has a guy friend that I knew wanted to fuck her. She always denied it but I know secretly she liked the attention he was giving her.

One night after too much to drink, Stacy wanted to go home. Brian, her friend was really eager to give her a ride. He said he was going anyway.
I saw opportunity, so I took it. Stacy was more than content to let Brian take her home. I stayed for another hour or so and then headed home too.

I drove by the house and Brian's car was still there, so I parked in the driveway of a vacant house down the street and walked home. I went in the back door and could immediately hear Stacy going, Oh Oh Oh Oh. It was getting faster, I knew they were fucking. I followed the trail of Stacy's clothes to the bedroom, where I could peek around the corner in the door.

Stacy was bent over the dresser and Brian was screwing ger doggy style from behind. I watched for what felt like an hour before Stacy started cumming hard. Brian pulled out and rubbed his cock between her big round ass cheeks and then he spooged all over her back and ass.

I left and went down the street to my car. I sat there for a half hour before driving by my house, but his car was still there, so I went back and waited a little longer. This time when I got home, he was gone. I went in and to the bedroom. Stacy's clothes were all piled up in the room now. She was laying in bed nude, which she doesn't usually do. I climbed in and asked why she was naked. Stacy said because she had been waiting for me. We fucked like rabbits that night.

It was a week before Stacy finally admitted to me what happened that night. I confessed too. She continued to fuck Brian for a year or so, but he never knew that I knew.