I found the advert in the back of one of those men’s magazines, the sort you only find in certain shops in back street Soho. It said simply, ‘Young man wanted. Must be interested in sexual adventure’. There was a number to text if you were interested.

So I texted, just to find out what it was all about.

A text came back, asking me all sorts of questions about myself. None of them were particularly weird or anything, so I replied. Then I got another text asking me if I had any particular sexual preferences. Naturally I did have one or two, including my passion for slightly older women. I mean, being seventeen, I did find older women more experienced and interesting. So that was what I said.

Two days later I got another text, this time just containing a telephone number. So I dialed the number. There was some delay in a response, but eventually a man with a soft voice answered

‘It’s Danny,’ I said. ‘You sent me your number.’

‘Ah, yes, good.’ He said. ‘I have a proposition for you, if you are interested.’

‘Go on,’ I said.

‘It’s a little unusual. I hope you are interested in something ... out of the ordinary?’

I grinned to myself, wondering what he had in mind.

‘Before I tell you,’ he said. ‘You must swear to absolute secrecy, whether or not you go ahead with my ... little project.’

‘OK,’ I said, more than a little intrigued.

‘Then we need to meet,’ he said.

And with that he gave me instructions. We were to meet on a bench in the local park. He would be wearing a grey track suit and a yellow baseball cap. The cap alone, I thought, would be enough to distinguish him.

Two days later, as agreed, I made my way to the local park and found the said bench. I waited for five minutes before I was aware of someone watching me. From further down the path, a medium height man in a grey tracksuit and yellow cap was gazing at me. He was in his fifties, perhaps, not overweight, with greying hair. When our eyes met he nodded and came to sit beside me.

‘Hello Danny,’ he said watching the passing runners. ‘Thanks for coming.’

‘Hello Mr...?’

‘Smith,’ he said briefly. ‘Just call me Smith. You don’t need to know any more than that.’

‘Ok,’ I shrugged.

‘So you’re up for a little sexual adventure?’

‘I may be,’ I said cautiously. ‘Depends what you have in mind.’

He gazed at me sideways for a long while and then said. ‘It’s a simple thing. And I’m sure you will take great pleasure in it.’

‘Go on.’

‘My wife,’ he said with a little sigh, ‘is somewhat younger than me. She is very fit and very pretty too. I want you to have sexual intercourse with her.’

‘Oh,’ I said, slightly surprised. ‘And is she happy about this idea?’

‘Well that’s the thing,’ he said smiling at me. ‘She doesn’t know about it.’

‘Oh.’ I said. ‘I don’t quite follow.’

‘Let’s put it this way. She won’t know anything about it. At least, not until it’s all over. Then perhaps she might suspect. But, no. She won’t have any say in the matter.’

Now I was a little puzzled. ‘I don’t think I really understand, Mr Smith. What is it you want me to do exactly.’

He licked his lips and shot a quick look around, before speaking in what was almost a whisper.

‘I want you to have sexual intercourse with my wife. She will be asleep. She will be ready for you, so all you need to do is come along, and ... have your way with her. She is very attractive,’ he said quickly. ‘I am sure you will fully enjoy the experience.’

I thought about this for a moment. Already my cock was giving little tremors as though it was liking the idea and wanted to let me know.

‘I see,’ I said slowly. ‘And is that all there is to this? Is there anything else I need to know?’

‘Well,’ he said. ‘Firstly do you think you might be interested in what I have suggested so far?’

‘Yeh, sure,’ I said.

‘Well,’ he licked his lips again. ‘There is just one other matter that you need to agree about.’

‘Go on,’ I said, cautiously.

‘I am going to watch you do it.’ He said quickly.

‘What?’ I explained. That was weird. ‘You want to watch as I fuck your wife?’

‘Yes indeed.’ He smiled. ‘It is, how shall I say, my particular pleasure. To see my wife being taken by another man. To watch it happening.’ He grinned. ‘Let’s say it’s just an older man’s delight.’

‘But surely she doesn’t want... ‘

He raised a hand. ‘Oh she will not know. Of that I can assure you. She will be ready for you and I will sit quietly to one side and not interfere. I promise you, young man, whatever you wish to do to her, you may and I will not even speak.’

I thought about this. My mind racing. ‘And you’ll just sit there and watch?’

He shrugged. ‘Oh, I may stand. And, with your permission, if I find your performance satisfactory, I might just give myself a little... ‘pleasure’, if you get my drift?’

‘You’ll have a wank?’

He shrugged again. ‘Put a little crudely, but yes. That is the point of the exercise.’

I thought to myself, the guy’s a fucking pervert. But then, since the idea sounded so attractive, I must be too. So I agreed.