Grandma Sitting on My Lap in the Car sex

It was going to be a long day. My grandma, Linda, was moving into her new house, and we had to pick up the things she didn’t trust the movers with. She wanted them packed safely in our car.

I’m Jake, twenty years old, and my mom, Sarah, is forty-seven. Grandma is seventy-six. I was there for the heavy lifting, and Mom was in charge of driving and packing. Mom and Grandma look a lot alike—both around 5’4” with auburn hair and pretty faces. They have a little extra weight, but it suits them. Grandma doesn’t look her age, and people sometimes mistake them for sisters. But personality-wise, they’re nothing alike. Mom is easy-going and laid-back, while Grandma is always proper and a bit strict. She’s never underdressed, and she insists I call her “Grandma,” not “Gran” or “Nana.” Mom, on the other hand, doesn’t care—“Mom,” “Mum,” whatever works.

The drive there took about three hours. We left early, so traffic wasn’t bad. Her new house was just minutes from ours, which was why she picked it. That meant another three hours driving back—maybe four if we hit traffic.

Before we packed the car, Mom made sure we had a big breakfast. She was very particular about loading things properly. At first, I thought there wasn’t much to move. I was wrong. Every single room had something that needed to go.

Mom walked around muttering to herself. “There’s no way this is all fitting.” Then she stood still for a long moment before nodding. “I have a plan.”

Her plan? Pack the car full, leaving space for only the driver’s seat and one rear seat. I’d have to share with Grandma.

I groaned. “Seriously?”

Mom raised an eyebrow. “Got a better idea?”

I looked at the mountain of stuff. “…No.”

That made her smile, and she immediately put me to work. Grandma just watched, happy that we had figured something out.

I thought we’d be done in 30 minutes, but it took nearly an hour with all the shifting and rearranging. Grandma had a mix of boxes, bags, and random loose items. Every single gap was filled. I just hoped we wouldn’t get pulled over for being overloaded.

Mom did a final sweep of the house to make sure we hadn’t forgotten anything. Satisfied, she clapped her hands. “Alright, time to go.”

I sighed, looking at the front seat. If only I had learned to drive—I was about to be crammed in the back.

Up until that moment, I hadn’t really thought about how Grandma and I were going to fit. Then it hit me—she wasn’t just going to sit beside me. She was going to have to sit on my lap.

I stood outside the car, realizing this, when Mom nudged me. “Come on, we don’t have all day.”

I climbed in and waited while Grandma took one last look at the house. She and Grandpa had lived there for nearly thirty years before he passed five years ago. I take after him—same tall, solid build. Not exactly handsome, but people call me rugged.

Grandma walked back to the car and took a long look at the tight space. “Good thing I’m nice and trim.”

She slid in carefully, and Mom shut the door. It was a snug fit, but not as bad as I expected. Mom didn’t even check if we were okay before starting the car. She turned the radio on, but it was muffled because of all the packed stuff.

“Turn it up!” I had to shout.

The first twenty minutes of the drive were fine. But then we hit a bumpy road. Nothing terrible—but just enough to make Grandma bounce slightly.

I shifted uncomfortably, trying to hide my growing arousal. I couldn’t help it—Grandma was sitting on my lap, and I could feel every inch of her through her clothes. I closed my eyes and started to think un-sexy thoughts. Nothing worked, it just kept on growing.

Grandma started to move, to adjust her position. I held my breath, hoping she wouldn’t notice. But she did. She looked over her shoulder at me and whispered, “I know what you men are like, but stop it if you can.”

“I am trying to,” I said, my voice strained. The road got a bit smoother, but my cock stayed hard. I couldn’t ignore it any longer. I shifted, trying to make it less obvious.

Grandma looked over her shoulder again. “Just be discreet, okay? I’ll lift slightly, and you know what to do with that, don’t you?”

I was shocked. She got up an inch or two, and I held my breath as she rolled her skirt up a little. She put her hands up her skirt and pulled her old lady knickers down to her thighs. My hand shaking, I undid my zip and took my cock out.

Grandma was still facing forward as I held her hips with one hand and the other on my cock as I guided her back down. I couldn’t believe what was happening. I was having sex with my grandma in the back of a car, while my mom was driving.

“Ah, umm, Jake…” Grandma moaned quietly as I filled her. Her old pussy was tight and wet, and I couldn’t believe I was inside her.

“Are you two okay back there? The ride’s not too rough?” Mom called out.

“It’s hard but we’re okay, I can handle it, don’t worry,” Grandma said, turning her head over her shoulder and smiling at me.

I nodded, feeling a mix of guilt and excitement. I didn’t know what to do, but Grandma seemed to be enjoying it. She started to rock back and forth, taking me deeper with each movement.

I couldn’t believe this was happening. I was having sex with my grandma, and it felt amazing. I closed my eyes, trying to focus on the feeling and not on the fact that it was my grandma.

She leaned back a little, and I could feel her breasts against my chest. I wrapped my arms around her, holding her close as she moved up and down.

“Oh, Jake… it’s been over twenty years since I’ve had sex…” she whispered, her voice strained.

I could hear the desperation in her voice, and it turned me on even more. I thrust up into her, feeling her wet pussy swallowing my cock whole.

“Oh, oh Jake… you feel so good inside me,” she moaned softly. Her hands reached back to grab my head, pulling me closer to her neck as she moved faster against me. She was grinding down on my cock now, riding it hard and fast like a wild mare in heat.

I couldn’t believe it. I was her first in over twenty years. I felt a surge of excitement and guilt, but I couldn’t stop. I was too close, and I couldn’t believe I was about to cum inside my grandma.

“Grandma, I’m going to cum…” I warned her, my voice strained.

“Do it, Jake… fill me up…” she moaned, her voice barely above a whisper.

I couldn’t hold back any longer. I groaned as I filled her, my cock twitching with each spurt. Grandma moaned quietly, her pussy clenching around me as I came.

We sat there for a moment, catching our breath. I couldn’t believe what had just happened. I had just had sex with my grandma in the back of a car while my mom was driving.

Grandma looked over her shoulder at me, a satisfied smile on her face. “That was nice, Jake…”

I nodded, still in shock. “Yeah… it was…”

We sat there in silence for the rest of the drive, both lost in our own thoughts. I couldn’t believe what had just happened, and I didn’t know what it meant for our relationship.

When we got to the new house, Mom helped Grandma inside while I unloaded the car. I tried not to think about what had happened, but I couldn’t help it. I kept replaying the moment in my head, feeling a mix of guilt and excitement.

I didn’t know what the future held, but I knew one thing for sure—my grandma was not like other grandmas.