Backseat Adventure part 2

I had put my shirt on but a few towels on the seat was all we needed and we were ready to go. As the last of us got in and we were about to leave when disaster struck. Mrs. Robin's van would not start.

Found out later that the starter died although that did not help at the time. We now had only one car and eleven people to get home. Since it seemed the van would have to be towed the only way home was to either somehow get rides which would take at least 30 minutes just to arrive if they were available at all or to pile up in the car. We decided that the trip would be short enough, although crowded, it would be simpler to just pile in. Mr.Robin was the only one who stayed as he would need to wait for the tow truck meaning there were eleven of us for a car meant for five.

As for the rest of us saying it was very crowded would be an understatement. Pilling into that car would be a trick any circus clown would have been proud of. Mrs. Robin was up front along with two others on the front passenger seat since it was a clutch we could not fit any one else up front. This meant that there were eight people in the back seat. Three on each end and two in the middle again to give the clutch some room. I was on the bottom of the three behind the driver with my sister on top of me and Jessica on top of her. Since Mrs. Robin needed room to drive she could not move her seat forward all that much making my spot easily the most crowed part of the car. We probably should have thought the seating arrangement out better. I know for sure if we had what happened that trip home would never have happened.

As we started off things began to shift around as every one got into the most comfortable position they could given the circumstances. It was not thirty seconds after we started moving, even before leaving the parking lot, that I felt my sister's tight little ass start to rub my crotch. It could hardly be helped of course but there I was trying to prevent myself from getting a hard on like earlier and then to have my crotch rubbed by my little sister's butt. I took a deep breath and figured it would not last long after all we were just settling in for the ride home. Nope, little by little I was getting harder and I could not even adjust myself as I said it was crowded, I could not even move my arms and they were not in a position to help. As I felt my cock get harder and harder I felt were it was going.

Shit, I thought to myself. If I got any more aroused here my penis was going to be exiting my swim briefs again. Slightly panicked now I pushed with my feet and my hips the best I could to get my hips out from under my sister as much as possible. This gave me only about two finger's width more room which actually turned out to be a bad thing. This gave my cock more room to get out and it did. It was completely out of my swim briefs although not fully erect yet. Mean while every one else noticed the extra room I had created and had no problem taking it for themselves. My sister was pushed back against my free cock. I am pretty sure this is when she first noticed something was wrong as she let out little, "huh"? As bad as it was at this point things would have just been awkward from here to the end of the trip. My cock was almost completely erect but was pined between my left leg and my sister's left butt check and it would have stayed there I bet but here both my sister and I made a mistake.

"Sis", I whispered into her ear. "Can I get some more room? I have a, uhh, slight problem."

"I noticed", she said thoroughly disgusted. I could not blame her for being upset but she gave ground as best she could. It was just enough for my cock to slip out from between her check and my leg to between her checks.

"Fuck", I said much louder then I had meant.

"What's wrong?", answered Mrs. Robin.

"Oh, nothing its just I think I am pinching a nerve and could use some more room", I lied quickly. That should help right?

"Oh I am sorry. Give him a bit more room if you can please?", she asked the group. Immediately we got the little room both my sister and I were desperate for but it was too late and did not really help. Now fully erect my cock had caught on the cloth of my sister's swimsuit and the tip of my cock began to ever so slightly rub the side of her pussy. Unbelievable here I was in the back seat of an over crowed car with my own cock rubbing up against the pussy of my little sister with my swim team right next to me.

"I am so sorry, I am so sorry, I am so sorry...", I kept saying in a repeated whisper to my sister.

"You are so dead", was her reply. I could hear the anger in her voice but I also heard the fear and the panic there too.

This lasted maybe another minute all the while the movement provided form the road moved me up and down the slit to my sister's pussy and little by little moved the fabric of her swimsuit to the side giving more access then a brother should ever have to his little sister's clit.

Then we hit a stop light. Holy hell that was enough to move the fabric of her swimsuit completely out of the way. I even managed to probe her pussy and half of the head went in. Yep I was completely lined up with her tight little pussy and there was nothing either of us could do to stop what we each knew was going to happen sooner or later. At this point I was desperately fighting my self to keep from just ramming my self in her and just start fucking her but I was determined to keep my self from doing that for as long as possible. After all I was still quite aware how taboo it would be for me to have sex with my sister. It would be wrong, it be in public, it would be without consent, it would be right now.

Bump.

That same bump that had knocked Jack's Pokemon cards to the floor on the way down to the pool park now knocked my cock all the way up my sister's silk smooth pussy. What happened then? Well I came of course. I had been edging on horny all day and had not even relived my self in over a week. Remember my advice about rubbing one out before wearing tight fitting swim suits. I am pretty sure that would have helped here too but as it was I could not help my self. I let out the biggest load of cum I can remember right into my dear little sister's tender womb. Jet after jet balls deep, the whole thing went in and went on and on. I was lost for words and the look on my face would have been priceless I am sure, wide eyes moth a gap in horror and pleasure. I did see my sister's though and that is with me to this day. Her eyes were tightly shut and her face was crunched up in pain not physical pain but emotional pain. I saw the tears she was trying to hold back and the look of utter defeat and dismay.

"What did you do?" her voice cracked in a whisper.

No one heard, no one knew. They were all busy talking and had not noticed anything amiss. They were still going on about the bump some one was shouting about hitting their head on the ceiling I could careless who. I had no answer for Nara.

"Oh my god Nara. I. I. I. I didn't mean to," I stammered.

It was not over yet though. This was only the 10 minute mark of our 30 minute ride. I was still sold even after letting the biggest load of cum in my life into my sister. Nara, still holding back tears sat on my cock for a moment before trying to lift herself off of my steel rod. She pushed as much as she could and I even tried to help her by pressing my self into the back of the seat as much as possible. We got very close if only we could have managed another centimeter.