Once every few years, I used to go on a hot spring trip with my relatives. I was supposed to come with everyone this time, but I got food poisoning, so my mother and I went on a parent-child trip for the first time in a while. We drank alcohol while enjoying a meal that had been prepared for us in the hot springs. My mother got tipsy and went to the bath again. I was so excited by her mother's naked body that I couldn't say anything...
