Movie Night

"Okay, we're good to go," Diana says as she walks out of the lab.

I follow her to the car. Of course, I love seeing my sister's naked ass, but there is something about a girl who knows how to walk in tight jeans--and Diana sure knows how to walk. Despite being petite, Diana's ass sways from side to side with such confidence. Every step until we reached the car: left, right. Left, right. Left, right.

It was mesmerizing.

The drive to the drive-thru theater went without a hitch. It was weirdly normal. Just me and Diana driving down the road fully clothed, just like the good ole days. Just kidding, I prefer our more recent relationship. It's a lot more exciting.

Still, this gave a sort of nostalgic vibe. When we got to the theatre, this feeling was multiplied tenfold. This drive-thru was the same one that our family always visited as kids. Even in the early 2000s, when we were regulars here, the place gave off a retro aesthetic. Now, it was even more obvious. The entire place was clean and didn't seem to be falling apart, but you could just smell our childhood in the air: when our parents would take me and my sisters here whenever they had time off work.

Now, it was just me and Diana coming, and with a lot less wholesome intentions in mind--for me at least.

We got our tickets and ordered our food. I made sure to forget to butter our popcorn, knowing Diana loved buttery popcorn.

The movie started soon, so Diana and I moved to the back of our Crv. We put all the chairs down and brought pillows, making a makeshift bed area.

I snuggled her into my arms as we watched the trailers play before us. She had no complaints.

She was engaged in what was playing before us and I knew that it was my time to make a move.

With her still in my arms, I slowly undressed her. First I took off her sweater and shirt. The only thing covering her underwear was now her jeans, which I quickly took off too. I had some trouble in this part, but she seemed to maneuver herself to make the task easier for me.

Now, my sister lay willingly in her panties and bra in the back of our car. If an outsider so much as peaked into our vehicle, they would see this wonderful sight. Sure, the chances for someone to have a reason to come over here and look inside our car is low, but the risk is exciting nonetheless.

The movie was about to begin. I would never want to disturb Diana's movie-watching experience, so it's now or never. I slowly reach around Diana's back and unclasp her bra. She is laying on her side, so I see the immediate effect of gravity as her tits sink towards the floor of the car. With one last objective, I reach for her ass, giving it a good squeeze. I stick my hand under her panty, feeling the warmth of both of her womanly holes--Diana's soft cooing welcoming some more.

I reach down and am about to finish off the task of undressing my sister, but her hands stop me.

"Um Thomas. What are you doing?" she says as she looks at me.

Oh shit. I must've missed something. I'm too far from home to put her into the fast learning machine. Depending on how badly I messed up, I'm on my own. The problem here is, I'm not exactly sure what I did.

"Uhhhh," I manage to get out.

"What's up with you? Do you just expect me to just be naked here alone?" she says with a confused smile.

Oh thank god.

"Of course not, but I'll need some help," I quickly say.

"I guess it's only fair. You undressed me after all," she said as she reached for my belt and undid the buckle. As she pulled my jeans down past my crotch area, my dick sprung out like a... well I don't know. Like a spring?

She slowly removed my pants... then my shirt... and lastly my briefs.

She then guided my hand to her panty, where she allowed me to glide them down her smooth legs, revealing her freshly shaven pussy.

Suddenly she turned back to the screen.

"Shh, the movie is about to begin," she said.

Of course, I had little intention of actually watching the movie, but that does not mean that I can't enjoy a good movie. For a good half hour, I zoned out and watched the movie with Diana as normal, or at least as normal as you can be when you're two siblings cuddling naked in the back of a car. I stroked Diana's soft ass with my hand throughout.

But the middle of the movie was a quite boring section. I lost focus on what was happening and averted my attention to what lay in front of me. I stuck my hand to Diana's pussy, and felt around her lips. Up and under, I began to familiarize myself with all of it. Still, throughout all of this, Diana's mind was kept on the movie--or at least until she began to hunger for a snack that is.

She took a bite of the popcorn and instantly squinched in disgust.

"This is so dry. Do you have butter?" she asked.

"Oh my bad. I forgot to grab some," I said.

"That's okay, do you mind if I jerk you off into the popcorn?" she asked as if that was something totally normal to say.

"Uhh sure."

She quickly got up and repositioned herself. If any of our car "neighbors" were paying attention, they could've probably seen something.

She moved the popcorn to under my dick and slowly began jerking me off, her attention split between my dick and the movie. Realizing that there was too much friction, she spat on her hands and began to jerk me off more vigorously.

I could hear her breathing increase with the impromptu cardio she was participating in. With each breath, her tits moved just enough to showcase their soft, pillowy nature, so of course I reach out and grab them, kneading them between my hands.

Suddenly, I burst. My semen flies deep into the popcorn. Despite the fact that I already came, Diana didn't stop stroking. She knew how sensitive my dick was after putting, so she kept going, basically stretching out my orgasm and pleasure.

When she was sure that all of the semen that would come out did come out, she stopped.

"Thanks, Tommy," she said, as she threw cum covered popcorn into her mouth.