My cousin came to visit my house and we decided to take a bath together for the first time in a while. I couldn't help but get a hard on as she had grown into a voluptuous, sexy body. My cousin was also excited by the changes in my dick. She pretended to wash me and secretly squeezed me. I touched her overgrown big tits and big ass, and said, "I want to try something I couldn't do when I was a kid," and penetrated my dick deep inside her. We did it all the way in the bathroom.