After reading the story 'Watching my Wife' I thought I would share this which is from the opposite perspective.
Last year I started a new job and got on really well with a woman named Sarah. She is older than me and married but we were very flirty with each other, all in fun. At the Christmas party she came with her husband and seemed to be flirting with me more than ever. When I was leaving she gave me a full on passionate kiss under the mistletoe. Right in front of her husband. I thought that perhaps she had drunk a little too much and when we were back after the break it was back to normal.
In the middle of January another colleague of ours was getting married. She invited a bunch of us and the wedding was in one of these all in one wedding venues owned by a hotel chain. As it was out of town all of us from work were staying in the hotel. Because I was single and I didn't want to sit at the singles table I took my sister which wasn't the best idea. Still the night before the wedding there was a bit of a get together in the hotel bar. My sister didn't want to go and so she stayed in the room watching TV. I had a couple of drinks and then Sarah and her husband turned up. We sat at a table together and had a few drinks and a bit of a laugh. Again Sarah was flirting outrageously with me. Her husband went off to the bar and that is when Sarah asked me if I would like to go up to the room and turn words into action. I asked about her husband and she said it was okay as he liked to watch. When he came back with the drinks we all discussed it. The rules were no full sex but anything else.
We went up to their room and her husband sat in a chair at the end of the bed while Sarah and I on the bed started to make out. She is a really good kisser and soon I had my hand under her bra playing with her large nipples. She took off her shirt and bra and I started to suck on her nipples they were the largest I have ever seen and she seemed to enjoy having them sucked. She pulled my shirt off and started to kiss my chest then stood up and took off her skirt and panties. Her pussy was dripping wet she got back on the bed and told me to finger her which I did while also sucking her nipples after a bit she got on her hands and knees facing her husband and I knelt behind her and finger fucked her to a loud orgasm.
After she had recovered a bit she went for my belt and undid it then opened my trousers my cock was so hard it sprung out. She positioned me so I was side on to her husband and gently rubbed my shaft and toyed with the tip of my penis with her thumb. I was horny I almost shot my load there and then but I managed to keep control somehow. I managed to get my trousers off so we were both naked and she started to stroke me. Sarah knew exactly how to stroke a cock and managed to take me close to the edge a few times before backing off. Then Sarah laid on her back so her head was facing her husband and I climbed on her and slid my cock in between her large full breasts she gave me a tit job until I almost came I finished myself off while still astride her shooting a huge load over her face and chest.
After I came her husband quietly got up and left. It was a wonderful and intense experience.