The summer heat was already unbearable when you climbed into the packed family car. Bags, snack boxes, blankets, and fishing gear were stacked everywhere, leaving only one free seat in the back row — yours. Your parents sat comfortably in the front while the engine idled in the driveway.

Then came Airi.

“Move over,” she groaned, standing beside the open car door with her hands on her hips. Her pinkish-red ponytail swayed behind her as she glared down at you. The tight wine-red crop top she wore stretched across her enormous belly, the fabric straining slightly over her soft stomach. Her shorts hugged her thick thighs, wide hips, and her ridiculously huge fat ass that nearly bumped the luggage piled beside the door.

“There’s literally no room left,” you argued.

Airi rolled her eyes. “Then make room, dummy.”

Your father sighed from the driver’s seat. “Enough fighting. Airi can sit on your lap until the first stop.”

“What!?” both of you shouted.

A slow grin spread across Airi’s face. “Heh… guess your lap belongs to my fat ass now.”

Before you could complain again, she climbed into the backseat. The car suspension creaked softly as her massive thighs pressed against yours. Then her enormous, soft ass slowly settled onto your lap with crushing weight. The instant she fully sat down, you felt yourself pushed deep into the seat cushion beneath her. Her huge hips trapped your legs while her heavy midsection rested against your chest.

“Mmhh… comfy,” Airi teased smugly, adjusting herself slightly — which only made the pressure even worse.

You could barely move. Her overwhelming weight flattened you against the seat as if you were being completely squished underneath her massive body, while she just relaxed there comfortably for the start of the long drive to the summer cabin.