Note: Because I got some free time I was able to put up the last three chapters so quickly. So enjoy.
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The time had come to leave the crappy hotel. Jenny had given me another blow job and I had eaten out her arse and pussy after we told mum and dad we were going to the beach for one last swim. We didn't even go anywhere near the water. I had wanted to fuck again, but Jenny had said she was too sore.
By the time everyone had gotten the energy to pack and one last trip to the factory outlet stores, it was late afternoon before we were ready to leave.
The car had been loaded up by dad with total lack of care for anyone not in the front seats.
Mum immediately called shotgun before Jenny and I could see the state of the car. Since mum and Jenny had went mad with the bargain shopping, we had much more luggage to take home.
So now a five seat sedan had turned into a three seat luggage car. I jumped in first, not entirely displeased with the situation. Though a long trip with Jenny sitting on my lap meant I would be constantly hard and probably have numb thighs.
The two other seats were completely filled, so much so, some of the stuff was sitting on the centre console. Dad wouldn't be able to see us properly in the mirrors or if he turned around. While Mum was right in front of us, feet on the dashboard and looking like she was about to sleep in the dying sunlight.
Mum was always full of energy at home, but when she went and did extra stuff. Like spending hours shopping, she tired out quickly, though she didn't take long to get energetic again.
I knew if she fell asleep she wouldn't wake up before we got home. She had a blanket spread across her lap and was already slumped in the seat before we left the town.
The trip home was five hours and when darkness came in an hour, I could play with Jenny.
I played it cool for the first hour. Doing the teenager thing staring out the window with earphones on. I didn't like earbuds, too often people didn't see them and would talk to you. Resulting in an awkward situation, while with proper over the ear headphones they knew you couldn't hear them.
I thanked my lucky stars I had inherited the permanent bored look from my father. Because Jenny wasn't as patient as me.
She slowly ground her arse into my lap as I was powerless to respond. If I humped, she would be raised up and that might attract attention from dad through the mirrors. Having driven a fair bit I knew the mirrors would show a bit of us. Enough to see if I was humping my sister while my parents sat in the front seats.
The torture continued for nearly an hour, then dark fell. As always darkness took its bloody time to come, it was nearly nine thirty before it was properly dark.
As soon as I dared I slipped my hands up on to Jenny's lap. I wiggled one hand beneath her shorts to find she wasn't wearing any panties. I immediately started to rub and finger her. It was getting me so hot to play with her body when she was still clothed.
I wanted to fuck her all out, to bounce her up and down on my cock. Soon I would, but not now, which was killing me.
I couldn't come like this, her movement wasn't hard or fast enough and my shorts were thicker than my briefs.
I slipped my other hand up the inside of her shirt to play with her breasts. She didn't take long to cum. This time she was silent and just shuddered on me. Her breathing quickened and became shallow, but the radio easily covered up the noise.
I started to think fucking her here would be possible after I made her cum again a little while later. She was laying fully back on me, completely relaxed on my body as I played with her.
"Right we will stop here to stretch out legs."
I could have strangled dad. Mum woke up, stretched and yawned. Dad pulled over to a rest stop, really just a cleared space next to the road big enough for trucks to stop at.
He pulled over and we all slowly got out. Jenny gave me enough time to rearrange my cock, so the waistband of my shorts held it against me.
I could have hit my dad for stopping, but the chance to stretch and move a bit was welcome after the time spent in the car.
My cock was throbbing like crazy, had Jenny moved a little more faster and harder I could have cum.
The girls went into the bushes to relieve themselves while me and dad waited near the car. When they returned, I quickly got back in.
Mum came to the back door, she turned around and bent like she was about to sit on my lap. I quickly held up my hand to stop her. Before I could think, I was touching her arse. My hand was cupping her cheek. For some reason I couldn't take it away.
My heart and lungs seemed to freeze, I finally found my voice after a long pause.
