My nephew Kazuya came to stay at my house for the first time in a while to study for his exams. However, as soon as he saw me naked after the bath, his penis got hard and he ran away in a panic. I thought he must have been craving something because he was so focused on the exam, so I massaged his penis with my boobs, ass, and mouth to relieve his fatigue... but I was completely captivated by the strength of his penis, which I hadn't seen in a while, and how hard it never went limp...