The original post: /r/eroticliterature by /u/carTrop on 2024-08-28 12:03:08.

I went to take my little sister Madison’s friend Katelyn to her soccer game to cheer her on. I didnt want to, but my parents wanted me to support my sister, and Madison begged me to drive her friend to her game to come watch, so i reluctantly agreed to. After all, what was the worst that could happen? I’m 21, and I knew Katelyn is 18, same age as Madison. I had never really met her before, so i drove up to her families house in the morning and waited for her to come out. After a minute an average height and skinny teenage girl walked out the door and to my car. She had long flowing brown hair and was quite pale, with striking brown eyes. She flashed me a big smile as she walked to the car. Katelyn wore a long sleeve mint green shirt and tight blue jeans that accented her bubble butt well, which was quite full for her otherwise average frame. She got in my car, and we introduced ourselves and then left, 3 hour drive ahead of us.

We stopped for breakfast first after driving for about 30 minutes. Katelyn drank a large coffee and two huge glasses of water with her food. While we ate we talked about her senior year of high school and how she wanted to get a job. I hadnt really spent much time around Katelyn before so it was good to get to know her. I knew she was my sister Madison’s friend for a few years. She was friendly without being too bubbly which i appreciated. She even burped a few times while eating, which surprised me some as most teen girls are shy to do that around guys, especially ones they had just met. We finished eating, paid, and then loaded back up into the car. We got back onto the highway, and started making good speed. We talked alot more as we drove, listening to music that Katelyn hummed along to. Katelyn told me about being on the highschool track team and always trying to be healthy by drinking a lot of water. As we talked i realized I kinda liked Katelyn, despite our age difference. I was looking forward to the next 2 hours we had together on this car ride! However, Katelyn’s bladder had other plans. After around 45 minutes of being on the highway, the humming stopped and so did the conversation. Katelyn sat in silence, looking out the window as I drove. She then sat up some in the seat, turning to me. “I have to pee” Katelyn announced.

I was somewhat stunned by Katelyn’s announcement. “Sorry it was all the water i drank so far today” she said meekly as she giggled a little and blushed slightly. “Oh its fine” i replied with a smile. I didnt want her to feel embarrassed any. After all, everyone pees, even teenage girls. “I can stop at the next exit” I told her. I knew we had a few miles to go until another exit. We drove on for a minute in silence except for the radio. I noticed Katelyn clenched her legs together in the seat. She kept shaking her feet some, and constantly looked out the window. “ummm can you hurry please?” She asked me while fidgeting. “Yeah sure” i replied. I sped up a little. I remembered that she hadn’t used the bathroom at the restaurant. I also remembered the two large waters and coffee she had drank earlier. If she had drank even more water this morning before I picked her up…Just how bad did this girl have to pee?

We continued on the highway for a few more minutes. We passed a sign saying exit was a couple miles away. “Ooooooh” she moaned quietly. “I really have to go!” I felt bad for her. I suggested she play on her phone or something to keep her mind off of things. She sighed and got her phone out. We rounded a bend and had to slow down almost to a stop as we hit a slow patch of traffic. Of course there would be traffic this close to the exit! She started shaking her legs and was breathing heavily. We slowed almost to a stop as we very slowly inched along the road. “Oh why does there have to be traffic!” Said Katelyn, putting her phone back up. So much for that distraction helping her. Cars stretched ahead for a while but we could see the exit down the road at least. She kept shaking in her seat. “Sorry i just have to pee so bad!” she said as she blushed. I told her it was fine. “When you gotta go, you gotta go!” I said to her. I felt my face get a little red about discussing going to the bathroom with a teenage girl. But Katelyn just laughed some. “Oh and I REALLY have to go!” she said. We both laughed a little. That seemed to relax her some, making the car a little less tense. I couldn’t believe this girl i had just met a couple hours ago was so desperate to go and was so open about it. Well it was one way to break the ice further between us! Minutes ticked by as we painfully moved down the road. With each second Katelyn grew more desperate. She rocked slightly in her seat as she panted.

“Oooooh i can’t keep holding it!” She moaned. She crossed her legs in the seat, gripping her thighs. “W-we’re almost there!” I stammered, trying to reassure her. Still we inched along. 5 more minutes passed. Then 10. Katelyn whimpered and moaned quietly in her seat. I kept trying to assure her we would be off the highway soon. My heart pounded as she grew more desperate. I did not think i would be dealing with this today, that was certain! We got close to the exit. “Can’t you do something!?” Katelyn begged me. “I-I’m trying! I’m sure it will just be another couple minutes!” I told her.

“Oh god…oh god! I can’t hold it!” She cried suddenly. She crammed her hands into her crotch and looked at me with a look of crazed desperation in her brown eyes. Katelyn leaned back into her seat, drawing her legs up, until her knees almost touched her chest. She rocked in the seat in this position, drumming her heels on the edge of the seat. “I need somewhere to pee! NOW!!!” She screamed at me. She started twisting and turning in the seat, hands jammed in her crotch, breathing heavily out of her mouth. I started panicking. I couldn’t pull over with the traffic. Traffic was starting to pick up speed but we still had a little to go to reach the exit ramp. “I-I don’t have anything to go in! J-just hold on! We’re almost there!” I yelped. I couldn’t believe this! Was she going to have an accident!? Katelyn slammed back into the passenger seat, flinging her shoes off as her hands scrambled onto her jean’s button. “What are you-” I started to say as Katelyn cut me off. “NO TIME!!” she screeched, eyes wild and face red. She undid her button and ripped the zipper down while scooting her butt towards the edge of the passenger seat, revealing her black lace panties under her jeans as full on panic set in inside the car. She was gonna piss in my car!

My mind raced in disbelief as Katelyn lifted her butt off the seat and ripped down her jeans. Pale hips contrasted with her black lace panties that hugged her white soft hips. She leaned back in the seat and raised her legs up, held together by her skinny blue jeans that were pushed down past her knees to her calves. Her head and shoulders rested against the back of the seat, while her feet hung at about eye level with me sitting upright in my seat, so that she was almost laying down in the seat. She was facing towards the left, and her left leg was over the center console and gear shift while her right was almost touching the dashboard. Her legs were spread as far as they could be with those jeans holding them together around her calves. She then raised her butt up again in the seat, hooking a thumb under the band of her panties and ripping her the black lace off her crotch, pushing it down her thighs to her knees. My heart was pounding in my throat as Katelyn exposed herself. All the while this was happening her face was red and scrunched up while she breathed heavily from holding her bladder. I knew I shouldn’t look at my sister’s friend stripped down in my car, but I was in complete shock at her undressing that I just froze. I tried to keep and eye on the road as we picked up to full speed, and looking at this teen girl exposing herself right next to me. It was happening so fast that i was stunned! As I tore my eyes away, I briefly glimpsed the soft, strikingly pale flesh of her crotch, her pink lips slightly protruding out of the soft mound of flesh between her legs, her soft cheeks resting on the cloth seat, the wrinkled tight brown skin between them hinting at the tight brown coin slot shaped hole that was tucked between those large pale mounds.

I snapped back to reality to give Katelyn privacy as I focused back on the road. Just as I looked out the windshield at what lay ahead of me, a jet of liquid explosively sprayed onto the inside of the windshield in front of me! I jumped in shock and surprise as a faintly yellow liquid splattered the windshield glass directly in front of me with incredible force, distorting my view as it flooded all over the inside of the window. I quickly looked over to see the jet of urine explosively fountaining outward and upward from Katelyn’s vagina as her pee shot across the car to hit the windshield. The car was filled with the sound of the pee powerfully splattering the inside of the windshield, as well as a piercing hiss as the liquid blasted Katelyn’s labia on its way out. “OH NO!” I screamed, and right as the words left my mouth Katelyn moaned “OOOOOHHHHH” full of pleasure as relief swept over her. Her eyes rolled up and her mouth hung open as she pressed her head back into the seat, her arms going completely limp at her side. She seemed to melt in pure ecstasy as she completely let go, finally feeling the blis…

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