My mother-in-law came up to Tokyo and started staying at our house. The place was small, so the three of us—my husband, my mother-in-law, and I—ended up sleeping side by side in a row. My mother-in-law had a plump, big-breasted figure, and her presence was strangely stimulating to me. That night, I couldn't fall asleep. The next night, we slept together again in the same arrangement, and I woke up feeling restless and overheated. Then I realized my mother-in-law was touching my crotch, asking me if I'd been turned down by my wife. She whispered, "Isn't this uncomfortable here?"