The man, who calls himself Michael, has his penis in his right hand, guiding it. It isn't enormous, but large enough, the condom-protected swollen head protruding above his fingers. He lets it rest against the puffy labia and looks down at me. From my chair beside the bed, I lean forward and focus the slr digital camera acquired specifically to capture this moment. I press the button and the camera flashes. I nod to indicate that he should proceed. Michael inclines his body slightly. The purple penis head slides easily into my wife. Catherine sighs softly.
What is to follow will be no surprise; every detail of the scenario has been discussed; we all three know what to expect. The anticipation has played a large part in our erotic life for a long time, long before we finally discovered Michael.
Catherine is on her back with her knees drawn up in the classic missionary position. She crosses her ankles behind Michael's back, drawing him into her, seeking deep penetration. Michael co-operates by resting his body firmly against her mound so that she can experience his full length. They are not yet ready for him to start moving.
The origins of this encounter go back almost eighteen months. We were on holiday in Paris with our son, Peter. It was his last vacation before he departed for Oxford to read engineering. Paris has been a favourite destination for many years, not least because Catherine likes to fine tune her mastery of the language at regular intervals: she is Head of Modern Languages at the most sought-after school in our home city.
In bed one night during that visit Catherine showed me an article in a French magazine describing the growth of swingers clubs throughout Europe but particularly in France and notably in Paris. If Catherine was giving me a barely disguised message, I was surprised. Our sex life had been satisfactory if not exceptional, In the way one is led to believe these things happen, it had gradually dwindled from early passion to comfortable routine.
"Do you want to try one of these clubs?" I asked, still trying to assess my own attitude to the possibility of spending a hundred euros for the privilege of taking our clothes off with a lot of strangers and letting follow what will.
"Of course not. Not with my figure. And all those groping hands." She shuddered at the thought. But she was being excessively modest about her figure. She takes good care of it, joining me at the gym twice a week when other commitments allow. I think she looks younger than her forty-two years, thanks to good legs and firm high breasts.
These assets Michael is now slowly exploring. Quiet murmurs I am unable to decipher pass between them, but it becomes apparent that she has asked him to start moving inside her. He does so very subtly, cupping her buttocks with both hands so that he can lift her on to his impaling member. I move in again with the camera. Flash! Buried. Flash! Partially withdrawn. Flash! Buried again, balls resting against her anus.
So if Catherine wasn't suggesting we join a Parisian orgy, what did she have in mind? We talked for more than an hour, reviewing the diminution of early ardour and discussing possible remedies. Only then, and very obliquely, did Catherine ask how I would feel about involving someone else. I told her it wasn't an issue worth considering because we had too much to lose.
"But we trust each other, don't we?" she asked.
"Of course we do. But that's not the problem." I reminded her of our exposed positions at home: her school, my company (I employ 17 people in a thriving specialist magazine operation), the Rotary Club of which I am Chairman, not to mention our sporting commitments - we had recently reached the Mixed Doubles final of our county's badminton championships. Were we prepared to run the risk of being caught in a tabloid newspaper sting or any one of a number of other ways our little adventure might become public property?
Frightened by the possibility, Catherine agreed. "Well," she said, "maybe if it stays a fantasy it will liven us up a bit."
With that we drifted into sleep, but a seed had been sown. Images were forming in my mind.
Catherine is moaning and beginning to writhe. Unspectacular though Michael's technique has been so far, he has been connecting with all the right nerve endings. No doubt the very fact of opening her legs to a virtual stranger is adding to the erotic charge. The signs are very familiar to me: her orgasm is imminent. But she is not ready to surrender yet. She uncrosses her ankles, wriggles from under Michael and deftly turns him on to his back. When I see that his penis is still fiercely erect, I position the camera again. Catherine is kneeling beside him and her open mouth is about to descend. Flash!
After we had returned from Paris, Catherine reminded me of the fantasy when we made love, and I had to agree it added spice and vigour to our coupling. She was asking me to drive harder, then checking me to prolong the pleasure. With Peter now away from home, her release became louder and less inhibited by the idea of being overheard.
For my part, I found myself returning to the suggestion of involving another party until eventually, at the end of one of our most acrobatic performances, I asked her if she would still like to try.
"Not if we running all those risks. It seemed it might be good for us both but -"
"Suppose we could eliminate the risks? At least reduce them to negligible?"
"Could we?"
I said I had given it some thought, and there might be a way.
"Is it something you could cope with? Are you really sure?"
"Yes."