I am glad of the opportunity to put this story on paper for others to read on the internet as I have found it impossible to confide in any of my friends and family about what has happened over the past few days. Some of them have probably noticed a change in my wife Helen's behaviour recently.
Helen has always been quiet and shy and may come over to people as a bit unsociable. She never had any boyfriends before meeting me and I have never had any concerns about her straying. In the privacy of our bedroom she behaves differently. She has always enjoyed sex and demands it frequently. She dresses smartly and receives admiring looks wherever she goes. I was recently sitting a few yards away from her and began daydreaming that she was someone I was meeting for the first time. I noticed that unconsciously she gives off a subtle sexual chemistry suggesting she might be a woman who would welcome a sexual adventure. One or two men have tried it on but she makes her position clear as soon as they do. I know it boosts her ego as she will often tell me afterwards without revealing who it was. She is self consciously slightly overweight but has curves in all the right places, is a voluptuous full breasted woman with an ample behind and slimmish waist.
After 20 years of watching the admiring glances of other men I found myself habitually thinking about the possibility of her being receptive to another man's advances. Strangely it was a fantasy which aroused me. I found myself thinking these thoughts when we made love which added to our enjoyment as my penis grew longer and harder. It was as if the humiliation of seeing her with a more handsome and virile man was exciting for me. It was difficult for me to accept that she still wanted me in her bed now that I had lost most of my hair and developed a large beer belly.
I couldn't stop thinking about it so made up my mind to set Helen up, put temptation in her way and see what happened.
Quite a few of our mutual friends are very attracted to her but I singled out James as a likely candidate knowing his reputation as a womaniser. He has often made Helen blush with his compliments and flirtatious behaviour. I believed that over the years she has developed a soft spot for him.
One hot summer's day I sent James round to our house to look at a set of golf clubs I was selling. I said I would be out but to go round the back into the garden and ask Helen. I hinted that she was sunbathing and he might catch a glimpse of some bare flesh. I saw the glint in his eye as he left and felt a shiver of anticipation.
I had deliberately turned down any demands for sex by Helen over the last ten days saying that I had a good reason and would let her know soon what it was. I had placed a radio controlled child alarm close to the garden seat and was upstairs in our bedroom observing Helen through net curtaining. I noticed that Helen had removed her bikini top. Alcohol has always made Helen horny so I was pleased to see that she had taken up my suggestion and was sipping on a glass of white wine. She was reading a rather racy novel and was absentmindedly playing with her nipples as James arrived.
Only other ardent wife watchers will understand my feelings as I realised that Helen was making no attempt to cover her breasts as James explained his errand. James told her she looked beautiful and said that more women should allow their breasts to hang free as Helen smiled and went bright red in the face. I was already stroking my stiff cock as she got up and went round to the back door of our garage and fetched the golf clubs, her large breasts swaying prettily as she walked.
"You need to be careful in this heat, let me top up your sun tan oil my dear." James said, picking up the bottle from the ground. They were sitting together on the garden bench. Helen, behaving like the slut in all my fantasies, simply nodded her head and turned her back towards him. I could see her nipples standing out with desire. He began rubbing the oil into her back. Once that area was finished he did her arms, slowly extending his exploration of her body. She turned around saying, "Now do my tits. I know you want to."
