LADA Decensored — AI mosaic removal version. A shut-in older sister weighing 100kg injects a 'forbidden weight loss drug'! The next day, the person who appears before the family is... an ultra-slim and beautiful version of her sister!? Her younger brother, who had made fun of her until now, cannot contain his surprise and excitement! Having gained confidence, the older sister releases her pent-up sexual desire with her brother's cock! As if their previous relationship was a lie, the siblings fuck each other over and over again, but...