My married friends first dated when we were all in school in our teens. Split up when she went to university, then got back together in their early 20s and she settled down with him.

I always felt she deserved better as he was lazy in the relationship, but would never think of over stepping the boundary of a relationship.

She had an open mind to sex. During university she had sex with a lot of different men and women of different ages, while he had very little experience. He told me their first night they got back together she wanted him to fuck her ass - his first time. She was amused by the subtle or very different ways it was possible to make men cum. He didn't really even know what he liked.

He was a bit jealous of her past, but happy to have her try the things she'd learned and practiced, wanting him to find his own pleasure. If another woman flirted with him, she knew how to push his buttons, use another new trick and keep his attention.

They once told me, after a few drinks, that he very rarely made her cum in the years they were together. She knew some of my girlfriends quite well, over the years. They'd talked about sex and she heard I was good in bed. He was always too fast to cum and didn't know how to be rough, or make women orgasm anally or vaginally, and lacked imagination. He only made her cum clitorally with his tongue, with one routine.

He asked how I made women cum. I went into detail; the right angle to hit her g spot to make her squirt; build up her imagination with role play and restrains so a few touches made her explode; willingness to include another man or two if she wanted; cerebrally earning her trust enough that acts of submission, objectification, humiliation and degradation felt like feminine sexual empowerment.

She seemed to relish hearing us talk like that. He was out of his depth but turned on by her reaction.

I had some experience of group sex, with past GFs, friends, swingers. Mostly MFM, or more men, or mixed groups. I had videos and photos online with hotwives and couples, which he saw and said he'd shown her. Like a lot of men, he loved the thought of his wife with two men. He knew she'd enjoyed it at university but felt it was something she "got out of her system". She knew he wanted to experience it but was scared about the reality. I was open about it, never pushed it, even though I was very attracted to her.

Finally, at a friend's wedding party, a big group of us went away for several days. Late one night he suggested we have a threesome. She was very pleased and I couldn't wait to fuck her. I'd wanted to since we were teenagers. She'd been loyal for years, ever since they got back together after university and was more than happy to finally have another man.

He was drunk, as usual, and fell asleep almost right away. I fucked her over and over again, for most of the night, next to him snoring, drunk, passed out. We had no risk of STIs or unwanted pregnancy. Years of built up tension - for her, the first time in years with another man, for me, the very pretty woman I'd wanted to fuck since we were teenagers I came in her mouth, pussy, ass, all over her face and body. Used her like a rag doll and called her all kinds of slut. She came easily, even just from anal. Put herself in any position I wanted.

In the morning the bed was soaked in sweat and cum. She told him how I'd tried to wake him up, opened his eyes, shook him. How she tried sucking his cock in his sleep while I fucked her. Tried fucking inches from his face. How loud she was next to his ear cumming with me. Asked if he had an unusual taste in his mouth when he woke up - she'd kissed him in his sleep after I'd cum in her mouth. That she lost count of her orgasms.

He was surprisingly good natured about it, just really annoyed that the thing he'd always wanted - his wife fucking another man with him - happened while he was out cold. He couldn't remember anything. We teased him that he'd missed his one chance to watch and learn.