My nephew Kazuya came to stay at my place for the first time in a while to study for his entrance exams. After I got out of the bath, he caught a glimpse of me and, visibly flustered, got a huge erection before quickly running off. Seeing him like that, I felt a sudden urge to relieve his stress and exhaustion from studying. I carefully massaged his cock using my breasts, ass, and mouth. But overwhelmed by the impressive size and unrelenting hardness of his cock—something I hadn't seen in so long—I completely lost myself to desire...