When my husband and I heard that his father had fainted at the bathhouse, we decided to visit him together at his parents' house. His father was suffering from high blood pressure and would need to stay in the hospital for a while. It turned out that his father lived alone with his bachelor brother. That day, we were told to spend the night there, so we relaxed in our room together. After some time, I really needed to use the restroom but couldn't find the door. In my haste, I accidentally opened the door to the bathhouse instead! And what a sight greeted my eyes... My brother-in-law's huge dick!!