I'd known Jackie for several years. We worked at the same company and always got on well. I'd met her husband several times and she'd met my wife at work functions as well.  We were both in our early 50s and were empty nesters. 

We had to go to one of the other branches about 120km away for a day to help them out with some work as they were short staffed and getting behind. It was really lousy weather when we left and only got worse during the day. Mid afternoon the road home was closed due to flooding so we decided we would have to stay the night and go home the next day, providing the road has reopened. Jackie rang around a few motels to see if we could get a couple of rooms and drew a blank. It appeared the town was already heavily booked for a few other things going on in the town that week plus others had found themselves in the same predicament as we were and needed somewhere last minute to stay. She took me aside and said the only room she could get at late notice was a single room at one of the local hotels. I said take it, I'll sleep on the couch if that's all we can get. Jackie was worried what others at work would say when there was only one room invoice submitted as expenses and I could feel she was also a little uneasy about what to say to her husband. I said it's ok, we'll just say I stayed at a mate's house. 

We checked in and got to the room and there was no couch which could have proven slightly problematic but Jackie said it's ok we've known each other for years and I trust you, we'll just have to share the bed. I said if you are worried I'll put a pillow between us! We went to the local supermarket and got a few toiletry supplies etc and then went and found a restaurant for dinner. I could tell she was still mulling over in her head about sleeping in the same bed as a guy who wasn't her husband and I said relax, what happens while we are away stays totally between the two of us. 

We got back to the room and I told her to have first shower. I lay on the bed and watched the tv and waited for her to come out. When she did I tried not to look too much but she was wearing her knickers and camisole with her nipples quite noticeable and looked really sexy. I'd never seen Jackie in that light before, maybe because I knew she was married. She seemed really relaxed now and happily bent over in front of me while getting in the mini bar fridge to see what was in there.  I'd better not she said as I headed for the shower. I showered and came out in my undies and shirt to find Jackie already in the bed on her phone and the lights all off. I took my shirt off and slipped into the bed beside her, joking there was no pillow between us. She laughed and said if you behave we won't need one. We talked a while and then decided we should get some sleep. I rolled on my side facing her, Jackie turned so she had her back to me. I was laying there thinking about how funny the day had gone when Jackie started edging herself over towards me. I actually thought she was just trying to get comfortable but she moved even further and was almost spooning into me. You can cuddle me she said, I'll like to be cuddled to sleep at night so I put my arm around her. I was actually starting to get quite aroused and even more so when Jackie started rubbing her butt into my crotch so I slipped my hand up inside her camisole and cupped her breast in my hand. There was no objection at all so I started playing with her nipple and blowing gently on her neck. Jackie reached behind and put her hand down my undies, pulling my cock out. I said to her are you sure you want where this is headed and she said yes, I want you to fuck me. We were both naked in no time at all, kissing passionately before I went down on her, eating her out until she came really hard and then repeating it until she came even harder and pushed me off because her clit was so sensitive. She told me to lay on my back and took my cock in her mouth sucking me rock hard before moving up the bed and mounting me. We fucked that way a while before alternating between pleasuring each other orally and fucking some more. I came inside her, fucking her deep from behind. She'd cum so many times I lost count. 

I cuddled her to sleep, she said that's the first time she has ever cheated on her husband. I said it'll be our secret. I woke to her rubbing my cock the next morning, we 69'd before I fucked her again. 

We showered together, found somewhere for breakfast and then headed home, the road now reopened. We stopped off on the way home in a secluded area so I could finger her in her back seat and she gave me a blowjob, swallowing every last drop of my cum. I dropped her off at her house to get changed and we both arrived early afternoon at work, trying hard to concentrate on work but both of us having sex flashbacks from the night before. 

We played a few more times after that, at motels in the afternoon when we were both meant to be seeing clients and once at her house while her husband was away. I asked her once if she had any guilts about that first night. She said surprisingly no I don't.