My wife had never let me watch her with her lover. They had started behind my back, but I eventually discovered her affair.  He was a work colleague. When I confronted her, she told me that she would not stop as she liked it so much.  I had no option, and we came to an understanding that it would continue but it would not involve me.

She never told him that I knew.  My wife would usually tell me when and where they were meeting.  If they were going to be at our house, she would call me at work, and I was supposed to stay away from the house until she called to say he had gone.  I had never violated that rule except to drive by the house every now and again to see his car parked in the driveway. This always resulted in a huge lump in my throat from the realization of what they were doing.

Then one time, she was planning to have him at our house after a late afternoon meeting, they had attended that was not far from our neighborhood. It was around 4:30 when she called me at work and said they were there, and he was in the living room having a drink. She would call me when he had left.  I could come home then. She sounded very excited. I was finished with work and just leaving. So, I had to either sit around, or go for a drink which I often did to pass the time.

I got in my car and started driving for home, not sure what I would do. I drove by our house and both of their cars were there.  I kept going up the street until I could turn around. I parked up the street from the house and sat in the car for a while. It was near winter and almost dark, and I could see lights on in the house, but the blinds were closed.

Our house is on a wooded lot and has some large evergreen trees in the front, so I left my car and snuck between them and now I was only about 20 feet from the living room windows. I couldn’t see in but could see shadows moving on the blinds, so they hadn’t gone into the bedroom.  So, I waited.

At some point, there weren't any shadows moving around and I realized they had moved to our bedroom. Our house is a 1 story contemporary with floor to ceiling windows and our bedroom is on the back side. There are no houses that look into the back yard so it's very private. I started shaking when I stood up and walked around to the back.  At first, I walked past the house, so I was in the dark about 25 feet away from the windows.

There was a low light on in our bedroom and the blinds were down, but they don’t completely cover the windows unless you carefully adjust them, and they weren’t.  I took a deep breath, moved closer and looked in. The bed is only 3' from the window but they were standing on the other side, kissing, and touching each other. His back was to me, and his pants were pushed down to his feet, and I could see her hand moving like she was stroking his cock. They moved a little and I could see his hand between her legs, and she was up on her toes.

She pulled his shirt over his head and off and he helped her undress, then took his pants the rest of the way off so they were both naked. He is a big guy, and his back was very broad. She started toward the bed and when he turned around, I got my first view of another man with an erection and ready to fuck my wife. It excited me tremendously and made me nauseous at the same time because I knew what was going to happen right in front of me. They got on the bed and immediately started kissing and touching.

Her back was to me about 4 or 5 feet away and I saw his hand go between her legs and when she spread them open, I could see him siding his fingers in and out of her. Her arm was moving like she was stroking his cock again. Then, he pushed her onto her back and started to squeeze her breasts and suck on her nipples, and they were close enough that I could see them pull between his lips as he sucked.

I was dead quiet, and I could just hear her moan through the window glass but couldn't make anything else out. She was arching her back and pushing herself against him and reaching behind to his buttocks and pulling him to her. He stopped sucking her nipples and just looked at her while he started fingering her again.

He must have decided she was ready and moved over her.  She pulled her legs back and spread them wide apart. Then I saw her take his cock and put it against her pussy lips, then move her hand away. He said something to her which I couldn't hear, and he seemed to hesitate just for a second, then his hips started to push forward, and her body moved back as he entered her all the way without stopping.

He lowered his body onto her and only a few feet away from me, he started to fuck her.  Once again, I could hear her moaning every time he thrust his cock into her. Everything started to blur for me, and I lost track of how long it went on.  At some point, he stopped and pulled back out of her, then put his face down between her legs and started licking her. I could see her squirming and her body shuddering as he did it.

After some of that, he stopped and looked at her for a few seconds, then moved up on her again.   I saw his hips push his cock back inside her, it did not need to be guided, it just pushed its way in.

I looked away for a few seconds with that image of what I was seeing burned into my mind. When I looked back into the bedroom, he was fucking her really hard. Her body was moving back and forth, and she was really moaning and loudly calling out repeatedly, “Oh Fuck, Oh Fuck”.  Then her legs straightened out and she wrapped her arms around his back, and I saw her whole body stiffen then press against him and spasm.

He stopped fucking her and stayed as deep in her as he could until her body relaxed, then he started again. She held onto him with her legs wrapped around him as he kept fucking her for what seemed like forever but later, I realized it had only been a couple of minutes.

There are 2 windows and I moved to see them from a different view. The view was from further away but was from almost directly behind him. I saw his cheeks tighten when he thrust his cock in her and his balls pressed against her. I moved back for a closer view and just as I got there, I saw his rhythm break down and he pushed in her as far as he could and stopped for a second. I heard her moan and say Yes! Yes! Then he did the same thing again several more times and each time she moaned and pushed herself up against him until he collapsed onto her, still slowly moving in and out of her.

I wanted to leave but I couldn't take my eyes away from them. They both relaxed and laid there like that, for quite a while. She would press herself against him and he would push into her softly and his arse would clench then relax. They kissed some more and then he pushed himself up with his arms and said something to her, then he pulled his cock out of her.

It was flaccid slick and wet and just hanging, but it looked swollen and huge as he got off out of the bed on the side to the window and just a few feet from me. He was standing next to her saying something, then he walked right past the window and started to get dressed. My wife was still on the bed, he was facing the window and I left to be safe. Back in my car, I looked at my watch and it had been a little more than an hour since I had gotten there so I guessed they had fucked for at least 45 minutes.

Somehow, I drove away and waited.  She called about 20 minutes later and said he had left, and I could come home and hear about it.

I have never told her what I had witnessed, and I have never done it again.  I don’t think I could go through it again.  She still sees him, and I listen when she recounts their time together.  She tells all and is never embarrassed.  Thankfully she never compares what we do to what they do to me.  But I do know he is an expert and realise why she insists on seeing him.