Everyone is 18+ and fully consenting.
Our weekly Delaware "party supply" run started like it had every other week. Except this time there were six of us and a single five seater car, yet nobody thought about that until we had already walked across campus. Nobody wanted to walk back for another car. We were stubborn like that.
The argument lasted about twenty seconds. "Dude, we can fit," Tyler said. "No shot," Chris said. "It is a ten minute drive," Seth said. "Someone sits on a lap," Evan said. Everyone immediately looked at me.
I was not tiny, but compared to these guys I may as well have been. Seth was the biggest. He spent a lot of time at the gym and had big arms and thick legs, not to mention he was 6'4". I already knew where this was going before anyone even said anything. I just sighed and gestured at him.
"Fine. I will sit on Captain Protein Shake."
The guys cracked up. Seth grinned and slapped his thigh like I was a toddler being called over.
"In you go, buddy."
I never really felt self conscious about my size before, but since I joined the frat, I had started to feel like a little guy compared to the bulky behemoths the frat seemed to attract. I was just over six feet tall, but it seemed like the average height of the rest of them was closer to six-three, with a lot of muscle.
The back seat was not roomy. Seth took up half of it by himself. I climbed across the others, twisted sideways, and finally lowered myself onto his lap.
"Wow I thought you'd be bonier. You've got a lot of cushion on that bubble butt," Seth said with a smirk as I got situated. The guys chuckled before completely forgetting about our predicament since it didn't apply to them in the moment. The car started to move, and I found my footing in the strange situation.
His thighs were wide and firm, and once I settled, I actually felt relatively comfortable. My back pressed against his chest, and his arms ended up around my waist because there was physically nowhere else for them to be.
"This okay?" he asked quietly near my ear. His tone was slightly different than before.
"It's fine," I said, but my heart started to race a bit. I was a bit nervous with how comfortable he was with the position of me sitting on his lap. I suddenly felt kind of shy and self-conscious.
The car pulled out of the lot. Everyone talked loudly. That was normal. Seth and I stayed quiet at first, which was not normal.
I found myself sitting rigid, trying to keep my weight on my own feet, but we hit the first pothole and my balance fell apart. I dropped back against him firmly. He let out a low laugh near my ear.
"Relax, dude. You're not crushing me."
I chuckled, relaxing a bit. "If you say so," I muttered.
The next few bumps pushed me farther onto him until I finally gave up and let my full weight rest in his lap. I was stuck between having fun with the odd situation and trying to actually find a non gay way to get through this drive. His thighs were warm through his jeans. My hips sank snugly into the space between his stomach and legs, like the seat was shaped for me. The warmth and breadth of his torso behind me, and his strong hands holding my waist, all felt sort of grounding in this uneasy situation. Heat spread up my spine, and for a second, I felt oddly safe.
"See," he said. "Comfortable now?"
I couldn't let him know that I was enjoying it that much. "Unfortunately, yes."
He laughed again, then started chatting with the other guys. I tried to look at my phone to distract myself, but couldn't really focus on much beyond his body touching mine from behind. His chest moved against my back when he breathed, and talked, and laughed. I felt his breath lightly hit my neck when he leaned forward a bit to talk to Chris. The closeness made me more aware of my own body than I expected. And I only became more and more aware of his at the same time.
We turned onto the rougher part of the road. The car bounced. Each jolt pushed me deeper into him. My tailbone pressed straight into his lap. I shifted, then shifted again, trying to avoid that exact spot, but there was nowhere to move. The third bounce revealed something new.
I felt his dick start to grow.
A firm pressure rising beneath the denim of his pants. A movement of something hard rising in pulses under my ass.
For a full second, neither of us reacted. I stayed completely still. He stayed completely still. The conversation in the car carried on like usual, but inside my abdomen everything tightened with nerves.
I swallowed, turned my head and whispered, "Uh... dude."
"I know," he whispered back, voice tight, a little bit of fear in it. He was waiting to see how I would respond, and trying to make it go away.
Another bump. My weight landed right on top of his hardening dick again. It felt big. I felt him pulse as the pressure under me grew harder to ignore. I could feel his breath near my neck get a little uneven.
He shifted slightly under me, probably trying to hide it, but that only made it push against me harder. A solid, large shape jutted into me through both layers of denim. I felt it throb once. Maybe twice. My whole face warmed.
I was somewhat concerned before about seeming gay, but this dude was literally getting bricked up underneath me. I turned my head just enough to see his tanned face turning red.
I whispered again. "Seth."
He whispered back, directly into my ear. "I cannot control that part of my body right now."
I was laughing to myself, unable to think about anything else when a dude’s boner was literally pressed against me. We hit another bump, and felt myself growing as well. I braced on his knees, but the motion still dragged me back across his lap. It felt like I brushed over the entire length of it. I could not stop my breath from catching in the moment, like I almost coughed out of surprise. I was reacting in an unexpected way, matching Seth’s strange bodily reactions. I tried not to draw attention to us, as my body was reacting in ways I did not want to advertise in a car full of frat guys. Soon I was hard as hell, and feeling weird about it.
I stared ahead at the back of the driver, Evan and tried to act like I was not sitting on my friend's boner. My hips stayed locked in place, but every tiny shift of the car made us move against each other. I felt another slow pulse beneath me as he became full mast, rock hard, his big rod throbbing against my body from underneath.
He went quiet, not even talking to the other guys. I could feel how warm his chest was against my back. His hands moved up to my ribs, not grabbing tightly, just like he was preparing some fantasy of throwing me off of him, wishing I was sitting anywhere else instead of on his boner-laden lap.
After a moment, he exhaled and whispered, "Sorry dude..."
His tone surprised me. It was not jokey. He was genuinely a bit shy about the whole thing. Something fluttered in my stomach.
"It's ok," I said. "I'm good."
He nodded behind me. "Alright. Thanks."
We stayed like that for the next few minutes. The road evened out, but the tension under my ass didn't. His body stayed warm and solid beneath me.
When the road got rough again, Evan picked up speed and the bumps came faster now, and each one pushed me tighter into his lap. His hands slid from my ribs to my hips for better balance. His fingertips pressed in and held me centered on him, telling me he wanted me in that exact spot.
Another bump. The pressure under me was pressing directly between my butt cheeks, big and obvious. I shifted my weight and felt the length of it again. My body tensed even more and I pressed back into him.
Seth let out a low sound near my ear like a grunt. His hands tightened at my waist. That alone sent another jolt through me.
I whispered, "You okay?"
He breathed out, "You are killing me, dude."
The way he said it felt different, like he wanted it in a way. So I leaned into it a bit harder. Instead of waiting for the car to hit a bump, I just pressed back into him. Everyone else in the car carried on like nothing was happening, but I was basically giving my buddy a lap dance, seeing what would happen.
After he realized what I was doing, I think I heard a little chuckle, and then silence. He held my hips against himself and took over. His strength pinned me down and he started grinding against me. I could feel his abs and his body tense in waves as he subtly did his thing against my ass, having his way with me while pretending like he wasn't doing anything at all. The other guys didn't even look our way, and soon I felt him approach the edge.
"F... okay," he whispered into my shoulder, voice cracking.
I felt him throb against me, stronger now, trapped by denim and my weight. I leaned back into him, grabbing his legs under mine, inconspicuously holding my lap tighter against him. He pressed his forehead against the side of my neck like he was freaking out.
He whispered my name into my ear.
His grip on my waist locked in. His thighs tensed beneath me. His breath hit my neck in a couple short bursts. I knew exactly what was happening even before the small shudder went through his chest. He let out one sharp grunt into my ear and buried his face against my neck as his whole body tightened and his girthy dick pulsed between my butt cheeks. The heat of his breath rushed across my skin as he finished, and a weird tingle shot straight down my spine.
He stayed frozen for a moment, chest pressed to my back, hands still clutching my waist. I felt the aftershocks under me, subtle and familiar. It was just like mine. The first time I had felt another dude's orgasm happen, and it made me feel curious and turned on, something I didn't expect.
He let out a slow breath against my neck. "Do not move for a second."
"Yeah," I whispered. "Okay."
We stayed like that as the car rolled into the strip mall parking lot in Delaware. The others were still arguing about what brands of party supplies were the best value. Nobody looked back. Nobody noticed anything.
Eventually he loosened his grip. His hands slid off my hips, gentle and careful.
The guys all got out quickly when we parked, and I was alone in the car with Seth.
He whispered, "Okay. You can get up now. Slowly."
I moved off his lap and felt the cool air against my ass, even through my pants. He adjusted himself quickly and turned his head away from me, but I looked down and saw the results of our road trip.
"You got something on your pants," I said quietly, pointing to a big, wet jizz stain on his left thigh.
He chuckled and his face turned red, I got out of the car, leaving him to figure out how to hide that. I tucked my boner up into my waistband and joined the guys, wondering what the fuck just happened.
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