I’m 45 and married to Kelly, 44. Kell and I were not getting on very well, we hadn’t had sex in month’s, and I didn’t know if our marriage would go on much longer. To be honest, I didn’t think that sex was much of an issue for my wife until se suggested we try and make time for each other and that we should consider ‘spicing things up’ as she put it. I pushed her for an explanation until eventually she admitted that she thought we should try inviting someone else into our bed or ‘trying a swap’. To say I was shocked that my usually very conservative wife was the one to suggest swinging is an understatement. I asked her if she had someone in mind, she said she didn’t. However, it wasn’t long before the married daughter of one of her best friends was paying us a visit more than she had ever done before bringing her husband with her. The two of them in their early 20’s. My usually quiet wife would start wearing tight jeans and a blouse with no bra which left no one with any need to imagine what was underneath. We could faintly see her fairly small but still firm tits and her big round nipples pressing against the material. The friends daughter who I’ll call Sam for keep her ID safe on the other hand would wear the same tight jeans which appeared sprayed onto her big thighs, nice big round ass. Her top would hide her slim waist but not her big ‘D’ sized tits. This all seemed surreal and I wondered from the start if this was all part of Kelly’s masterplan. Don’t get me wrong, Sam was attractive and I would have loved to fuck her but I just couldn’t see my wife doing something like that and wondered if she was just setting me up to see if I would ‘do it’. Then and for no real reason Sam and her husband came to stay the weekend. They only lived about 20 miles from us in an area much nicer than ours so why would they want to do that, but who was I to argue. On the Friday evening during dinner Kelly started to say the most weird things about me, stuff like how I slept naked and how she knew if I was having a dirty dream because I would make a tent. And with that she motioned that I had a big cock and when I had a hard on it was like a tent pole and the duvet would rise like a tent. I suggested that Sam and her husband didn’t want to hear things like that, both Sam and my wife laughed & suggested that they did. Then, when we were on our own my wife asked me outright ‘do you fancy fucking Sam’? I asked her if that was what this was all about and she admitted that it was. I said nothing. That evening we went to bed. Sam and her husband in the spare room, Kelly and me in our bed. She lay her head on my chest for the first time in months and asked if I would at least try it. I told her that I didn’t; think it was a good idea, and with that I fell asleep. I don’t; think I had been asleep for more than a few minutes when I heard someone moving. I looked up and saw my wife in the doorway talking to Sam, still in her jeans and top, in a very low giggly whisper. Sam and Kelly walked away, a few minutes later there was more giggling, and I wondered if she was actually going to go ahead and sleep with Sam’s husband. I didn’t need to wait too long for some answers. I hear a muffled but long grunt followed by a familiar shriek and ‘oh fuck’. I lay on my back wondering if this was actually happening or was my wife with the help of Sam and her husband winding me up. I remembered what my wife had said about ‘the tent’ but my cock was not hard enough for that although the thought of my wife being fucked by another man was a little bit erotic as it is with most men. With that Sam walks in, this time her jeans were missing but the top wasn’t. I couldn’t make out if she was naked from the waist down due to the length of her top, but her tits swayed as she walked in. She smiled and knelt beside the bed. I asked her what was happening, she smiled and replied with a question ‘what do you think is happening’. I told her that I would like to know and with that she put her hand under the quilt and lay it just below my stomach and just above my cock. ‘Its just a little fun’ she whispered and with that she took my semi had cock in her hand and started to rub it. I lay there and kicked the quilt down and watched her slowly and gently toss me off. ‘what are they up to’ I asked her nodding to the bedroom next door where the muffled grunts and moans were coming from? Sam smiled, then she looked serious ‘ my husband is fucking your wife’ Sam said and with that she stopped tossing me off and pulled her top off. Her ample ‘D’ cup tits fell out and I could see that she was naked. She went back to tossing me off for a few seconds before my cock disappeared into her mouth. I lay on the bed listening to my wife moaning, I could barely make out the ‘fuck this is good’ and ‘keep fucking me, don’t stop’. Sam stopped slurping and stood up, ‘lets fuck’ she said and in one swift move she straddled me, took my cock in her hand and guided it to her pussy. She was so wet It slid in easily and for the next fuck knows how long Sam rode my cock, her tits swinging until she fed them to me one by one for me to suck. I lay there and listened to Sam moan and compliment me on how big my cock was telling me that she was going to cum hard then smile ‘but not yet’. I really wanted to put Sam on her back and fuck her hard and I told her so but she insisted that she wanted to be in control of our ‘first shag’ and started riding me hard. I gripped her big tits as she rode me and tried my best not to cum but I knew that I would last long. In fact it was Sam who beat me to it. She rolled over and pleaded with me to fuck her hard. I did as I was told and raised her knees to beside her head and pumped her pussy. Out of breath she asked me to cum inside her and with that she cried out and shaking she grunted and moaned, she had climaxed. Next door my wife was screaming and pleading for more. I couldn’t wait any longer and emptied my balls into Sam’s pussy which resulted in her announcing ‘that is fucking amazing’ complimenting me again on how hot my cum was and that there was ‘so fucking much of it’. My wife was calling out ‘again, again’ then after another squeal said something like ‘that was good’. Sam and I lay in each other’s arms trying to catch our breath. She asked me if this was my first-time swapping, I said it was. She wanted to know how I felt about it and I admitted that I would need to think about that. Kelly appeared at the door completely naked, her face was wet with what I assumed was cum which also covered her chest, I looked at it dribble down on of her tits stalling at her hard long nipple waiting to dribble off. Sam giggled and asked her if she had let him (her husband) cum inside her. My wife smiled and said ‘inside me, on me’ then grabbed her own hair and said ‘he even managed to get it in my hair’. They both laughed. Kelly walked past us to have a shower. Sam noted that I was hard again and suggested we go for round two. I fucked her again and this time, at her suggestion, I shot my load over her tits and face and into her mouth. Then she kissed me in my cheek and joined Kelly in the shower. I don’t think there was much lesbian screwing going on but there was a lot of giggling. After that had stopped Sam went back to her husband and from what I could hear they fucked for some time. My wife and I sat up in bed and said nothing. For the first time in my life I had fucked a woman twice and cum twice and was still hard. Kelly straddled me. I sat up in bed with my wife impaled on my cock and we talked about what had happened as she gently ground herself against me with my cock deep inside her. It sounds ridiculous but we talked about fucking other people after we had fucked other people and were fucking each other. After some time like this, Kelly kneeling over me, her chest and face less than an inch from me, my cock inside her we agreed that we should make ‘a thing’ out of this and as long as we both agree, we should explore fucking other people and with that my wife’ s pussy gripped my cock and she shivered whilst I emptied what cum I had left in my balls into my wife. We slept until way past 9am, Sam and her husband until just past 10am. Later that afternoon we decided to take it a little further and whilst Sam’s husband fucked Kelly doggy style on the living room carpet I did the same to his wife right next to them only swapping back when we had all cum so we could fuck our own wives. Just before they left for home on the Sunday afternoon Sam said that she had a favour to ask, she had a fantasy that only we could help her with and with that she knelt in front of her husband and me naked as we wanked ourselves eventually Cumming over her and in her mouth, my wife on the sofa masturbating before joining Sam in cleaning cocks with their mouths. This is a regular thing for us now we are free to meet up but we have met another couple. They were more our own age and I little too wild for us, it was more a wild almost a too rough shag for Kelly with a surprise lesbian shag from the guys wife after I had finished with her which Kelly was not keen to repeat. So now we will stick to Sam and her husband until we can work out how to properly vet our fuck buddies.