Last weekend, my close friend Yua Ariga invited me to her house to hang out. When I arrived, I found the door unlocked, so I just walked in without bothering to call out. It was very quiet inside, and I searched everywhere for her but couldn't find her. It wasn't until I approached the bathroom door that I heard some strange sounds. It turned out she was masturbating naked inside, seemingly waiting for me to help satisfy her burning sexual desires. When she saw me, she didn't seem surprised or embarrassed, but rather happily welcomed me and even invited me to shower together. As long-time close friends, I didn't hesitate to help her in her time of need. We had sex all day that day.