We are in the family minivan, sharing the back seat...Dad is driving with his 70's music on and Mom is asleep in the front passenger seat. A ton of gifts and luggage are piled high up on the middle seat, making it impossible for our parents to see us from the front...it's dark as we are driving home from a holiday gathering and we know there are a couple of hours left in the drive. I was so tired from running around the backyard entertaining our toddler cousins, and you were almost-fresh from getting cleaned up after Uncle Wyatt spilled his beer all over your outfit. Luckily, Cousin Patti, who had turned 18 just two days after your Thanksgiving birthday, was close to your size, so she lent you a tank top and a short skirt.
Your beer-soaked clothes were in a plastic bag under the seat. I had glanced the bag before I had shoved it under there and noticed that not only were your shorts and blouse in there, but your panties and big bra (that I tease you about all the time as your tits are larger than other girls your age) are also in there. so basically, I have deduced that you are wearing nothing but the skirt and the tank top. I have a pillow behind me and have leaned against the window and am starting to fall asleep when you, also sleeping, lay down with your head in my lap...suddenly I realize that your head is resting directly on my crotch.
Maybe it's the angle or the amount of pressure, but as your sleepy cheek settles into my lap, I start to get an erection. What the hell is my sister going to think if she wakes up and finds my cock hard right next to her face. So I tap you on the shoulder and whisper "Sharon..." you look up at me with half-closed eyes. "You might feel more comfortable up here..."
I pull you up so that your head rests on my chest, then, more to hold you in place in a moving car than anything else, I wrap my arms around your belly, and you start to drift back off to sleep. I do too, but before I get all the way asleep, I start to feel your belly and realize that despite being my one-year-younger sister, you have surely grown up to be a pretty hot eighteen-year-old woman...
...my hand transitions from almost absent-mindedly rubbing your belly to sliding up under your shirt and rubbing my hand against the underside of your breasts...I suddenly get a crazy notion and start to slide my fingers under the waistband of your skirt, and just as my fingertips touch the first of your pussy hairs, your stir a little and, to my surprise, you push back against my rapidly hardening cock.
It seems like you are encouraging me rather than chastising me, so I slide my fingers down a little more and feel as your mound rises against my fingertips...you push harder back against my hard-on and turn your head towards me. You open your eyes slowly and look straight into mine: "Johnny, I've thought about something like this soooo many times..." and suddenly we are kissing passionately and my middle finger is rubbing against the slippery-wet warm entrance to your pussy...
Within moments, the eagerness of my middle finger took over...the eagerness to probe just between your pussy lips, stirring your juices so they are flowing freely...every few seconds I pull my finger out, and each time I twirl my slippery fingertip around your clit. A couple of times you started to moan into my mouth, but I knew you were starting to get a little loud so I stopped everything, even the kiss, to press my lips against your ear and whisper: "You have to be quiet or I need to stop because you are making too much noise, Cher'..."
However, before you could assure me you would keep the noise to a minimum, there was a loud POP-ging! sound, a rattling tremor from underneath the car, and smoke starting to come up from under the hood of the car. Dad started swearing and Mom called back to us to make sure we were okay. We assured her we were, and Dad pulled over to the side of the road. It was a bit of a chore, as we all got out of the van to stretch and survey the damage, to not reveal ourselves as guilty of...well, what we WERE guilty of...and after all, we hadn't REALLY been having sex, we had just kissed and touched each other for a little while we were both half asleep. I continued rationalizing our innocence to myself, and, through occasional looks and whispers in your direction, tried to assure you of the same thing...
Well, an hour and a half later, after a tow truck ride where you and Mom rode in the cab of the truck and Dad & I rode in the minivan, we got to a car repair shop in a little town which was open just long enough to tell us that they were closing, and that they could start working on our engine first thing in the morning. Luckily there was a motel across the street from the car repair place, so Dad ran across to discover that they had two rooms left, a king bed room on the second floor and a two-double-bed room near the back of the motel. He announced that we'd be staying in the room with two double beds while he & Mom would stay in the King room. Of course, my mind immediately went to some pretty interesting possibilities for a brother and sister, worked up as much as we already were, alone in a hotel room all night long, forgetting everything I had just been thinking about with regard to our "innocence."
We grabbed our backpacks, and the plastic bag of clothes (which you could rinse out and dry overnight) out of the van before they locked it into the garage for the night, and we walked across the street to the motel. Dad handed us our room key and he & Mom walked toward the stairs to go up to their room, telling us to be down to breakfast by 7:30 in case we could get back on the road early...you and I made our way to the back part of the motel, passing the pool and Jacuzzi area (which would still be open for a few more hours according to the sign) and finally turning around the back corner to find our door. I opened it up and held it open for you. We walked into the room, and the door had one of those hydraulic closing mechanisms. so it was closed almost as quickly as we were behind it, before we could even turn on the light, and except for a sliver of light coming through the window-curtains, the room was suddenly and completely dark...
...that sliver of light lit up your front so I could clearly see your bare midriff between the tank and the skirt, and found myself checking out your long legs as well. so, rather than turn on the light, after gazing on you for a long moment, I started walking towards you in the darkness, saying, "So, Cher...you think we oughtta talk about what just happened in the van?"...
Well, having given you a couple moments to respond, and hearing nothing but seeing the growing passion in your eyes and the trembling of your body as I approached you, I knew what you wanted. I wanted it, too, but we were now bearing, potentially, on some very forbidden territory if we allowed what started in the van to go much further. So instead of kissing you hard on the lips, I decided instead to kiss your cheek and say into your ear, "let's go hang out in the Jacuzzi for a while, maybe calm down a bit...?"
You spoke up and said that you only had your beer-soaked clothes and what you were wearing, but no swimsuit. I said, "I was just gonna go in my underwear. You can too. Go rinse the beer off yours and let's go...it's a nice warm night...besides," I said, "I snuck a couple of those beers out of Uncle Wyatt's fridge so we can have a little somethin'..." I pulled the two still-cool bottles of beer out of my backpack and slapped your rump. "come on, Sis..."
You seemed like you were in the bathroom forever. "How long does it take to rinse out some..." when the door opened and you were standing there in your bra and panties, which were white lacy things both of them, but the beer and the rinse had gotten them so wet that they were mostly transparent. Your nipples and areolae were not only clearly visible, but the cold water had made them hard so it was tough to tell how much was from the cold and how much was due to the sexual energy of the moment.
You started to complain about the wet see-thru panties when I put my finger up to your mouth to shush you. You could smell your own juices from earlier on my finger briefly before I took my hand away from your mouth and grabbed your hand. In the other hand I had the beers and a towel draped over my arm, I told you to grab the room key and we walked around the corner and into the gate of the pool area. You breathed a sigh of relief as you saw that there were no other people at the Jacuzzi at this hour.
We walked over to the Jacuzzi and I helped you down the steps to sit down, then got out again to grab the beers I had set down and opened the top on each one, handing you a bottle. So now we were in a Jacuzzi in our underwear, having spent most of the last several hours thinking about incest, and were now drinking underage together. I felt so naughty, and looking at you it was clear that you were not only feeling that yourself, but you were also a little scared and, based on the look in your eye and the way you were shaking and spasming, very much aroused, and you confirmed that by sidling over to me and clutching my thigh under the bubbly water. my cock strained against my boxer-briefs as I wrapped my arm around you and guided your hand into my lap...
I could feel your reticence as I brought your hand toward my crotch, so I thought that maybe that was your limit as far as touching was concerned. So I let go your hand and instead whispered into your ear that maybe we should just consider this whole thing a mistake and try and forget about some of the dangerous stuff we were pondering earlier. So I took a few more sips of beer from the bottle and lay back against the side of the hot tub, spreading my legs a bit. I was surprised when you turned around and sat right between my spread legs and pushed back against me. For a moment I thought that maybe, when you were pushing back against my hard-on in the van, you figured it was okay since you weren't actually touching Me with your hands. "Okay," I thought as I drained the last few drops from my bottle, "maybe she just wants to keep it friendly but not that serious. I'm okay with that..."