One day, my brother-in-law Hiroki suddenly showed up, asking if he could stay at our house. From what my husband told me, he had blown all his money on gambling and got kicked out of his apartment. Even though he was an adult, he had no steady job and had quit his part-time work too. I felt irritated by his irresponsibility and thought there was no way I'd live under the same roof with someone like him—if he weren't my husband's brother, I wouldn't have even considered it. After that, I started feeling lewd stares whenever I was bathing or doing housework. My husband didn't hide it either—he tried to comfort me and do things for me. But due to work fatigue, he hadn't been able to get an erection in a long time. Every night, I found myself pleasuring myself beside him. What I didn't realize then was that Hiroki was secretly watching me. When my husband was away, Hiroki made his move. I resisted desperately, but his tongue ran over my nipples and clitoris, and the long-forgotten pleasure overwhelmed my body, making me give in to him. The moment he entered me, I couldn't help but moan, "It feels so good..." From that point on, whether my husband was home or not, I began living each day submitting to Hiroki's desires.