My mother-in-law came to visit us from the countryside. However, there was no place to sleep in our cramped house. I said I was fine with the sofa, but my mother-in-law said that wouldn't do, and my wife suggested sleeping in the "kawanoji" position (spooning). My mother-in-law's chemise, used as a nightgown, was unbearably sexy, and I lay down on the floor with my heart pounding. But I couldn't fall asleep, and when I looked at my mother-in-law, her chemise slipped up and I saw her white thighs. I hadn't done it in a while, so I immediately felt horny, but I endured it and the night passed. Late at night on the second day. I woke up feeling something strange in my lower body. Then I saw my mother-in-law sucking on my crotch. To my surprise, my mother-in-law said, "If you're full, you should relieve yourself, right?" and took me in her mouth again, and I released milky white fluid...