It started with a dank narrow boat

My wife and I have been married six years now and this story happened about two years before that. She’s a lovely, kind person; mild-mannered and a great mother to our three children; and she works as a primary schoolteacher. It always turns me to think how people would never suspect she has such a dirty side to her.
We got together in our late teens. Sarah had snogged plenty of boys but had had very little action beyond that. Even so, I found I got off on hearing about naughty things she’d got up to before we got together – minor things like snogging two boys at one party. I really pestered her as to what her fantasy would be and eventually – more to shut me up than anything else – she said she’d love to have 8 football or rugby players all fawning over her naked body and sharing her for sex. This really got me going and often when we were having sex I would suggest names of friends that she might be up for fucking. This often only spoiled the mood, but when I suggested Alex, an old school friend of mine that we hadn’t seen for ages since he’d got a job in Manchester, she got quite into it and said that she would like to fuck him. This then became quite a regular fantasy, but that’s all it was and we never discussed it outside of the bedroom.
We then went to stay on my parents’ narrow boat which was moored in the west midlands. When we got there it was a bit dank and miserable, and the pub didn’t look up to much. I suggested driving up to see Alex who was working in Manchester. It was a couple of hours drive further north and I was surprised that Sarah was up for it. I teased her that she just wanted to get her hand in his pants or more like his hand in her pants, and she smiled and said,
‘Well, it might be nice’.
‘Really!’ I said. ‘Are you really up for a threesome?’
She smiled and said, ‘Well, just being realistic, that if we all have a few drinks it might end up happening. Would you mind?’
‘Erm, I don’t know’. I could feel my cock stirring in my pants, but Sarah meant a lot to me and I had to try and think sensibly – was there any chance that it might affect our relationship; was there any danger that I might lose her to Alex; would jealousy eat me up? I was sure our relationship was solid enough and if not, better to find out now than before we got married; and the hard-on this conversation was giving me surely overruled any possible jealousy. I was so excited at the idea of seeing my darling girl snogging another man, sucking on his cock, showing him her naked body, and letting him explore her most intimate parts. Sarah saw my hard on, put on a sexy voice and joked,
‘Oh yeah, I’m going to let him finger me, I’m going to wank him off onto my tits and hair. Maybe I’ll even fuck him.’
‘That’s it’, I said, ‘Back in the car. We’re off to Manchester.’
On the drive there I tried to get her to tell me what she’d do, but she just said to leave it now and that probably nothing would happen and she didn’t think she’d really be up for doing anything anyway. I knew there was a good chance though.

When we got there it was really good to see Alex. We’d drunk a lot together in our student years, smoked a fair bit and listened to a wide range of music. We’d gone out with a lot of the same girls at school, occasionally even overlapping but never resulting in any hard feelings between the two of us. We used to talk about women all the time and often when we were drunk and stoned and listening to the velvet underground or Dylan or The Stone Roses or Happy Mondays, we’d talk about obscure sexual fantasies, each trying to outdo the other – I remember Alex winning one conversation by claiming that he’d love to have our female French teacher from our school fuck him up the arse with a strap-on. So, Alex and I had always been open with each other about sexual matters. He wasn’t really my closest friend but he was the only one that I could be fully upfront with sexually without worrying that he might write me off as a pervert. So, considering this along with the fact that I was gagging to watch Sarah with another man and I knew that Sarah was at least very much open to the idea and I knew that Alex was sexually adventurous, AND it turned out that the house Alex lived in had a sauna, all seemed set. Nothing happened the first night though. We kept drinking and going in the sauna and you could feel the sexual tension in the air, but I knew that Sarah would never take the lead; it was hardly Alex’s place to; and I didn’t want Alex to think we’d planned the whole thing – if it did happen I wanted it to seem like it happened spontaneously, on the spur of the moment. I reckon I spent the whole fucking evening with a semi, but could never find the right moment to try and ignite all the fumes that were undeniably in the air.
Next day we had a nice look around Manchester and drank a few pints, and then, tired and out of money, went back to Alex’s and sat round playing cards. I suggested playing strip pontoon (quicker than poker) – saying it in a jokey way of course so that Alex and Sarah could take it however they wanted. They both immediately said ‘yes’ though. We were off…………

Ten minutes later, Sarah was down to her knickers and bra. She lost again (doing it deliberately I’m sure) and was due to take her bra off. Alex suggested we move up to his room (he’d only been in Manchester a few months and was still in a company owned house, which was shared with other company people – there was no one in right then, but he wasn’t sure when anyone might appear). When we got into Alex’s room Sarah took her bra off and sat on the bed. The last ten minutes had gone by in a slightly vague 3 pint haze, but now, seeing her openly displaying her gorgeous tits to another man… It wasn’t like on the beach, when she’s sunbathed topless and people might happen to look: this was purposefully taking off her top to show this mate of mine her tits. It was all off at Kempton………

It degenerated from pontoon into just a forfeit for whoever drew the lowest card. Within minutes, we were all naked; Sarah had been given forfeit of spreading her legs; Alex, of making himself fully erect (which he did in about 10 seconds - I think it had been taking all his concentration to restrain himself ‘till then); and I had been told to finger Sarah. My thinking was that after a couple more forfeits getting Sarah to hold Alex’s cock and kiss him or whatever, I would kick things off by getting her to suck his cock and then start fucking her whilst she was doing this. She won the next hand though, and gave me the forfeit of having to stand outside the room for two minutes. What a sexy two minutes, and I mean for me! Presumably even more so for them! I stood just outside the door hearing groaning and wondering just how far my demure, kind, thoughtful, well behaved and faithful for 5 years girlfriend would go. After two carefully counted minutes I burst in hoping to catch them having sex, but they were just snogging – I say ‘just’: my girlfriend was being fingered by my friend whilst they french kissed.
I won the next hand and told Sarah to suck Alex’s cock……………..