Incest Family Affair: Backseat Sister

[neerathemall]

"You look really flushed," I said, enjoying trying to make her uncomfortable and looking forward to seeing how she lied... something that I was usually doing.

"Just doing laundry," she answered. "I guess I'm a bit out of shape, LOL."

I couldn't resist, "Maybe you just need a good work out."

"I probably do," she nodded, going to the fridge. Changing topics, she said, "I'm making homemade pizza, do you want me to make you one too?"

"Sure," I agreed. "I'll be upstairs."

"I'll call you when it's ready," she said, not acting any different: no hint she had just had multiple orgasms and no hint that her fantasies were about me.

I went to my room and watched the video. Although a bit shaky, it was pretty clear, especially when I zoomed it... and the audio was crystal clear.

I jerked off... imagining fucking my baby sister and then created a couple of copies of the video... unsure what I planned to do next.

It was nine days later, a day before her nineteenth birthday, I had watched the video dozens of times, jerked off a couple times a day at least and tried to spend more time with my sister trying to get more information about that one time... yet, I never caught her again and she gave no evidence she was into me.

It was almost as if I had dreamt the entire thing... although I had video evidence to prove I hadn't.

Then fate intervened a second time.

At least I took it as fate.

And the opportunity of a lifetime.

The entire family was driving two and a half hours for a camping trip.

That shouldn't have mattered, it was when we stopped at my aunt's house that fate opened the door.

Aunt Josie, mom's sister, wanted us to bring a couple extra boxes, ended up being four actually, up to Grandma's, mom's mom, which was on the way and about half an hour before where we were going camping.

Dad said, "We'd love to, but they just won't fit."

A wicked idea popping into my head, I offered, "Tanya can sit on my lap for a couple of hours."

"Really?" Dad asked, surprised.

I glanced at Tanya, who was equally surprised, and nodded, "If Tanya is okay with it. I'll do anything for grandma."

"Me too," Tanya agreed, completely unaware of my plan.

So we packed everything into the back seats, and I made it so the boxes would block Mom's view from the front passenger side and Dad's view would be equally limited with the mirror being utterly useless.

"You sure you two can sit like that?" Dad asked, "The second hour is all gravel roads and will be quite bumpy."

"I'm sure we will be fine," I said, as I sat down in the confined space... hoping it would be very bumpy indeed.

Tanya, who was in a skirt, looked at me and paused.

I patted my lap. "I don't bite."

She laughed, as she awkwardly moved in and sat on my lap, holding her skirt in place so her private parts were protected.

Dad looked in and said, "Last chance or forever hold your peace." A statement he often used when he was giving us a chance to reconsider or we, as a family, were making a final decision.

"I'll suffer through it," I said.

"I'm the one suffering," Tanya said.

Dad closed the door for us and got in the vehicle.

Mom called out, as the car started moving, "Comfortable?"

I responded, "It's fine."

"Yeah, it's okay," Tanya agreed too, her body leaning back on mine. Her pussy directly on my cock.

Tanya moved around a bit, trying to get comfortable.

As she did... my cock hardened... my naughty idea stirring my loins quickly.

The idea was a crazy one.

Fuck my sister in the car.

Making it happen, though, that was a bit more difficult.

One idea was to blackmail her with the video that was still on my phone.

Another was to just be aggressive and pull out my cock.

The last was to be sly.

I decided to start with sly... the other two still potential options.

I would flinch my cock, every minute or so, directly on her ass and pussy.

The first time I flinched my cock, Tanya was clearly startled... but acted as casual as she could... as if it was an accident.

The second time startled her again... and her cheeks began to redden.

The third time she tried to keep a straight face.

The fourth time, I flicked my cock three straight times... wanting to make it clear that this wasn't an accident.

I could see how uncomfortable this was making her. What I couldn't tell was if it was getting her excited. Her cheeks were red, but that could be out of awkwardness and embarrassment as much as it could be pleasure.

"This is a bit uncomfortable," I said, as I moved my arms from the awkward position I had them and moved them around my sister and placed them on her legs.

Her back stiffened, just as Dad asked, "You two okay back there?"

"Just trying to get comfortable," I answered.

"How about you, honey?" Dad asked.

Her answer would tell me a lot.

She answered, "I'm okay."

A vague answer, but by not making a big deal about my hands on her legs, nor my cock flinching underneath her, nor moving my hands away or lifting her body to one side or another, I was confident my plan was working.

"Let me know if you guys need a stop to stretch your legs or anything," Dad offered.

"Will do," I responded, leaving my hands on her legs casually... deciding to take my time on this seduction... trying to get her hot and wet... so she wouldn't be able to think straight. I was also being very cautious until I was a hundred percent sure she was game before I went for the kill. So far, I could defend each act.