I had sex with my elderly grandfather.

I was staying at my grandfather's house in Nayarit when I decided to visit him. I had not seen him for a long time and missed him a lot. When I entered his room, I noticed that he was wearing a tanga, which was very unusual for him. I decided to tease him a little and started touching his cock through the fabric. He seemed surprised at first, but soon gave in to my advances. We started kissing passionately, and before I knew it, I was on top of him, riding his hard cock. The feeling was intense and I could feel myself getting closer and closer to an orgasm. Finally, I reached the peak and felt a wave of pleasure wash over me. After we finished, we lay there in each other's arms, basking in the afterglow of our passionate encounter. It was one of the most memorable moments of my life.