I was feeling down because my family didn't take me anywhere during summer vacation. Then I got a call from my cousin's older sister. "Would you like me to take you somewhere in your car?" I was very happy. Because it was the super busty older sister that I had secretly admired since I was a child. When I went to the meeting place in the morning, my older sister was already waiting for me in a tight dress. The firmness of her big breasts... It was the beginning of a trip that will be a lifetime of memories, with a mixed bath with my older sister, a sleepover, and sex in the car.