The back seat was already overflowing with bags, jackets, and complaints before the trip had even properly begun. Your parents argued over space, your younger cousins squeezed together by the window, and in the middle of the chaos, only one solution remained.

“Elina can sit there,” your mother said, pointing directly at you.

Before you could protest, Your sis Elina gave you a smug little smile and climbed into your lap as if it had been her idea all along. Her long blonde hair brushed your shoulder as she settled in, adjusting herself with zero concern for your dignity. Her dark top and black leggings hugged her curves, especially the wide shape of her famously fat ass.

Then came the full weight of her as she leaned back against you, her fat ass pressing firmly into your legs.

“Comfortable?” she asked sweetly, glancing over her shoulder with bright blue eyes full of mischief.