[Naturelles1]

For years my girlfriend, later my wife, would let me take pictures of her naked. I had a good sized collection.
There was a co-worker of mine who had a huge crush on her and she loved to tease him by"accidentally" flashing him. When he was around her he kept a hardon looking at her.

One day we were talking and he asked if I had ever taken any pictures of her naked. When I told him that I had, he asked if he could see some of them. At first I told him no but I could tell that he got so turned on at the thought, that I invited him by my duplex after work. I called my girlfriend at her office and told him that I had invited him for a drink. I also told her that I had told him about the pictures and how he begged me to see them and asked her what her thoughts were. She said she would think about it.

He came by after work and after several drinks got his nerve up to ask about the pictures. About that time my girlfriend came in looking absolutely gorgeous and I told her that he would like to see her pictures.
She thought about it for a few seconds and told him he would have to show her something in return, that if he wanted to see her naked, then he would have to be naked while he looked at them. This embarrassed him at first, but the prospect of seeing her naked was just too much. She told him that I could show him a picture for each article of clothing he took off.
He agreed and I got a stack of the pictures and showed him a couple of her in a bikini. He immediately took off his shoes. When he got down to his underwear it was clear that he had a huge erection.

I could tell that my girlfriend was getting turn on and she shocked me when she started taking off her own clothes
Long story made shorter, by the time I had shown him pictures of her totally naked, he was standing in front of my girlfriend naked with a giant hardon.
She couldn't take her eyes off his big cock as she took off her panties and bra.

After a couple of minutes of staring at each other she lay down on the bed (we had moved into the bedroom by now) while she opened her legs as wide as she could and giving him a grand look at her tits and hairy pussy.
I was memorized at what was unfolding in front of me and just stood there with a hardon in my pants watching, when suddenly I saw her pussy start to flood with her juices. When he saw her getting wet he started jerking off. I now knew that she was out of control. I never imagined that things would turn out like this.

At that point I had to leave the room for a couple of minutes to come to grips with a situation that had suddenly gotten out of control. When I went back in the bedroom, sure enough, they were fucking like two animals in heat.
I couldn't help but take my cock out and jerk off while watching my girlfriend getting her brains fucked out.
This went on for a good hour when he got up and got dressed and left.