Mandy had come home knickerless after her night out at the hen party, and I'd told her that I wouldn't get angry no matter what had happened. Looking back now, I hadn't taken my wife for an amateur psychologist, but she certainly knew how to sweeten the pill of marital infidelity. We were still in the lounge with Mandy on the verge of telling me why she'd come back so late without the panties she'd been wearing when she left. As I sat beside her on the sofa my hand crept back her up skirt and I stroked her unprotected pussy. I could tell she was upset but I wondered if she could tell how unbelievably turned on I was. I felt sure that my wife was about to confess that she'd been unfaithful to me only a few hours earlier. We'd had fantasy chats about her with another man but she'd always ended by insisting that she now wanted to be a faithful married woman, and I'd never been quite sure how I'd react if she did get it off with another man. Mandy responded to my probing fingers by kissing me on the neck. ''Let's go to bed'' she said, ''and I'll tell you what happened.'' She hadn't touched my cock but I was wearing loose trousers and my large erection was definitely obvious to her. ''OK, let's go to bed'' I said, ''but I want to know what you've been doing.'' We went upstairs to our bedroom. I had my arm round Mandy's waist, like a caring devoted husband. Perhaps some people would already have been thinking about a divorce lawyer at that point, but by now I just wanted to fuck my wife and hear her confession afterwards. We got undressed in the bedroom. Mandy looked pointedly at my erection and smiled sheepishly. She turned around and I looked at her bum which seemed to me to be very red, as if if it had been spanked and pawed. We had the best sex I've ever had. Mandy told me to fuck her, and I was only too happy to comply. I knew that I wasn't the first man to fuck her pussy that night but I didn't care, and neither did she. I licked her pussy as she stroked my hair and then slipped into her so easily that I thought I could definitely get used to this kind of evening. Eventually I came inside her and we both lay in bed holding on to each other. I played with her pussy and she squirmed with pleasure and guilt as I did so. A long passionate kiss on the lips was followed by my question. ''So, are you going to tell me what you've done? I get the feeling you've been fucked already tonight.'' ''I love you'' she said, ''but I don't want to lie and you won't believe me if I did. Just tell me you'll forgive me.'' ''I've already forgiven'' I told you. ''I don't care what you did, just tell me and then I'll fuck you again.''