My wife refused sex again today. I understood she was tired, but around that time, my father passed away, and my mother Chiharu, grieving and withdrawn, came to stay with us. Seeing her cheerful appearance relieved me, so I suggested she take a bath to rest from her long journey. That's when I accidentally peeked at her changing clothes. Though I'd never felt desire for my mother before, I became intensely aroused. I kept telling myself I could never do anything with her, and tried approaching my wife again—but once more, she rejected me, leaving my sexual frustration with nowhere to go. The next day, while my wife was out shopping, I found myself alone with Mother in the living room. Overcome, I begged her, showing her my uncontrollable cock, confessing my distress over my wife's rejection. Chiharu, as if resigned, began stroking me by hand, then took my cock into her mouth and brought me to ejaculation. That night, unable to sleep, Chiharu recalled the daytime incident—surprised that this little boy had grown so aroused, yet realizing it was her son, a man other than her husband. She started touching herself, moaning softly. Suddenly, the door opened. Already aroused, her son forcefully embraced her, caressed her body, and plunged his burning cock deep into her mother's pussy.