My Sister in Law

I found myself walking back to our room, stumbling more like it. My head was spinning. I had just witnessed my wife Karen, sucking the cock of her Brother-in-Law David, who is also my best mate. I was mad, confused and tearful. I'd actually pissed my pants when I saw them together and I needed to change and take a shower. That's exactly what I did.

I was standing in the shower with my eyes closed. I don't know how long I was there, but it was a while. My mind was playing the scene over and over, David's cock pumping in and out of my wife's mouth. I found myself wondering if he came in her month. I know I have been fucking Rachel, Karen's littler sister for a couple of years now, and that David knows and enjoys that. I know I shouldn't be mad, as Karen was only getting even. But somehow, I still felt betrayed. I found myself wondering if they had fucked this morning. I found myself wondering if they had been fucking for ages and ages.

When I opened my eyes, there was Karen, in the shower with me. She kissed me on the mouth, her tongue slipping inside of my mouth. The very tongue that was licking and sucking my best friends cock minutes before. If David had cum in my wife's mouth, there was a good chance some of his cum was now in my mouth.

Karen then dropped to her knees and took my cock into her mouth. Even though my emotions were high, my cock got immediately hard. I looked down at my wife sucking me off. I had witnessed her doing the same thing to another man, just 20 minutes beforehand. I know she was thinking about that as she licked and sucked me. Two cocks, in quick succession, must have been a turn on for her. I could see her right hand flicking her clit. She was wanking herself as she took my cock even deeper in her mouth. She was clearly turned on.

Karen has never let me cum in her mouth before and we have a safe phrase, which is 'now bade', and Karen would remove my cock from her mouth just before I came. I was getting close as Karen was sucking me deep and her tongue was doing it's thing. I was very close and called out 'now bade', but to my amazement, Karen kept on sucking and didn't take her mouth off my cock. At that moment I came and to my absolute amazement, Karen swallowed every drop of my cum. Ummm! she said, that tasted good. At that exact moment, I knew Karen had swallowed David's cum too. She was giving me what she had already given him.

The rest of the holiday went smoothly. David and I had one more round of golf, Becky and Karen read books and bathed in the sun. A couple of times David asked if I was Ok, as he said I was quiet. Karen asked as well. On the last night she suggested we have sex, but I turned her down. That never happens and Karen said she was concerned about me. I think she sensed something was up. I just said I was tired, which Karen eventually accepted, and went to sleep.

The next day was travelling day. We packed up everything into Davids big 4-wheel drive ready to set off. Rachel said she was tired and might stretch out on the back seat. Karen always likes to sit in the passenger's seat as she gets car sick in the back seat. David, as is often the case, was our driver. I climbed into the back seat with Rachel, as we settled in for the 5 hours' drive home.

After about an hour Rachel did stretch out. She had a travel pillow that she pushed against the door and spread out. She ended up spooning me, or at least having her bum bushed up against my thigh, only inches away from my cock. After another 30 minutes, Karen had fallen asleep, David was concentrating on his driving and Rachel began gently wiggling her arse against my thigh. I pulled a blanket over us both, just in case David looked back at us or Karen woke up and did the same thing.

With the blanket on place, I let my left hand rub Rachel's butt. Outside of her clothing to begin with, but after a short time, I pushed my hand inside her pants. She was wearing gym gear and it was easy to push the fabric aside. My fingers found her arse hole. I rubbed her there for a little while before carrying on down where I found the bottom end of her pussy. She was dripping wet as I pushed further forward to find and rub her clit. She was very turned on, but was managing to keep quiet.

I turned toward her and pulled my cock out of my shorts. Under the blanket, I pushed my cock toward Rachel's pussy. Rachel pushed herself toward me opening her legs to enable me access. I pushed my cock inside of her and let it just sit there. The bumps in the road and the odd corner, gave us gentle thrusting and a blissful slow fuck feeling. We just let the car motion fuck us, in a gentle, sensual and natural way.

I looked at the car clock and saw my cock and been inside Rachel for over 20 minutes. I gently increased my thrusting, careful not to make any noise or be seen to be moving. It was just the gentlest of thrusting but enough. I could feel Rachel pushing her pussy back on me and I began to feel that familiar feeling of my cum building up from the base of my balls. Sure enough, one more big bump in a pot hole (David called out sorry about that), and I was cuming inside of Rachel. I never made a sound, nor did Rachel, even though I could feel her cum on my cock. Her pussy was clamping down on my cock. A sure sign she has just cum.

The next thing I knew, I was still lying in the same position, as was Rachel and my cock, although now limp, was still inside of Rachel. I looked at the car clock. I'd fallen asleep for an hour. My cock had been inside Rachel for an hour and 20 minutes. That's a first for me. Rachel was asleep, but I could feel my cock starting to get hard again. I decided I would gently fuck Rachel while she was sleeping.

It was a gentle fuck and Rachel was responding in her sleep. She definitely was wet and was pushing back against my cock. I did wonder if she was dreaming it was her husband's David's cock, or my own cock, that was fucking her. I gently pumped away, making sure her husband David had his eyes on the road and my wife Karen, was still asleep.

It was a gentle loving fuck, but I was all of a sudden very turned on. Here I was fucking a married woman who was asleep, with her own husband less that 3 feet way and my own wife less than 4 feet away, yet I was engaging in sexual intercourse with my Sister-in Law, Rachel That though pushed me over the edge, and for the second time that morning, I had a silent orgasm.

Finally, we arrived home, both Rachel and Karen woke up and we unpacked the car. Once we were inside our house, we hugged Rachel, and I shook David's hand. What a great holiday we all agreed. What a crazy fucking holiday I thought to myself. As Rachel left, she turned around and blew me a kiss. Hey, I said, this might be the last time we see you in one piece. You're only a few days away from due date. At that precise moment, Rachel's waters broke. This baby is on its way now David shouted out. I did wonder, if my 2-hour long fuck of Rachel just now might have bought on her labor.

We wished Rachel and David well as they headed off to the hospital. Wow! their family, and mine I thought, was about to expand.

Once we were inside, with our cases unpacked and a glass of wine in our hands, I asked Karen to sit down. She did, she looked at me with a worried look on her face. We need to have a talk I said.

To be continued