Several years into marriage, I never imagined that the lack of sex would become this unbearable, despite still being young. One day, my mother came to visit Tokyo while on a trip, and I was happy to see her again after so long. My wife and I warmly welcomed her, delighted by her visit. To help her recover from the long journey, my wife invited her to take a bath. That's when I accidentally caught a glimpse of my mother naked. Though her body, which I hadn't seen since childhood, showed signs of aging, there was still an alluring charm about her that instantly stirred uncontrollable desire within me. That night, I desperately clung to my wife, begging her to relieve my arousal, but she rejected me. Driven by frustration, I made a decision. The next day, while my wife was out shopping, I confided in my mother about my troubles. Overcome with arousal and unable to control myself, I clung to her, begging her to help with my painfully erect cock. At first she refused, but then gently embraced me, giving in with a whispered "just this once." She buried her face between my legs, bringing me to a powerful climax. Yet even after release, my erection wouldn't subside. Consumed by lust, I resolved to take things further with my mother.