Jenny was furious, banging on my door at midnight. When I opened it, she pushed past me into the flat, turned and slapped me very hard, twice. « You dirty bastard, » she snapped. « You dirty, dirty bastard. How could you do that ? »

I was wearing just a robe – I was nude underneath it - and felt at a disadvantage against my angry ex-wife. I also realised there was no way I could avoid discussing her grievance.

« Tom says you made him wank you, » she yelled at me. « I can scarcely believe this. You make your own son do a filthy thing like that. »

My intensive wanking had always been a big problem for Jenny and was one of the reasons we broke up. She thought my daily habit was disgusting and there were fights when I tried to get her to do it to me.

Since Jenny and I got divorced, Tom spent every other weekend with me which is how this situation had arisen.

« I didn't make him do anything, » I protested. « It happened, that's true. But if anything, he made me. »

She looked at me in disbelief and laughed sneeringly. « My son took advantage of poor you, is that it ? » she said. « At his age. »

« He's old enough to wank and does, » I told her. « He's been wanking for a long time and I know he masturbates with other boys. Kevin and Al Simpson, for example. »

« Other boys is one thing, his own father is something else, » she said bitterly. « That's incest. That's a criminal offence. And you say he made you. »

I didn't expect her to believe me but I asked her hear my account of what happened. She scowled fiercely but didn't try to stop me.

« It was Saturday night, » I said. « I thought he was asleep and I was in my own room. Okay, I was in the nude on my bed watching a porn movie on television and I was playing with myself. Tom came in unexpectedly without knocking and there was no way I could hide what I was doing.

« Honestly, I was very, very embarrassed even though I didn't have a full hard on but Tom wasn't embarrassed at all. He came up and got on the bed beside me in his pajamas and made some remark about the size of my cock. I thought the best way to play it was to be casual and unfazed. What happened next is that without asking, he reached over and took me in his hand.

« I told him we shouldn't do this and he said if I didn't want it why was I becoming harder. He was also starting to wank me and I admit that I was losing the will to stop him. I could tell he'd done it before and that's when he told me about the boys. It's true I got very excited and when he said to let him wank me all the way, I didn't stop him. He made me cum like I hadn't done for a long time. Afterwards, I made him go back to his own room but first he made me promise that we'd do it again on Sunday.

« We had things to do out early on Sunday and the second session didn't happen until the afternoon about an hour before you came to get him. He'd reminded me of my promise several times during the day and when he came for me I didn't resist. I got naked for him and he took me on the living room floor three times in the space of 30 minutes. Then you turned up. »

Jenny listened to all this in silence. Then she asked : « Did you touch him ? »

« I swear I didn't and I didn't try, » I told her. « He was never undressed or exposed or touched in any way. It was all the other way round. I was the one who was naked. I admit that I enjoyed it but I didn't seek it or make it happen. I have to say also that it felt very natural while it was happening and it still does. I don't think either of us did anything wrong. He wanted to masturbate me and I wanted to be masturbated. That's all. »

I didn't expect her to be fully convinced and she wasn't but she'd softened a bit. « Wanking is such a guy thing, » she said. « I just don't want Tom to be harmed. « Promise me that won't happen . »  She even smiled a bit. « Strange to think that Tom's hand has been where mine once was, » she said. « He does it better, » I told her.