In order to support my pregnant wife for a few days, my mother-in-law, Kanna, lives with me at my house. Thanks to my mother-in-law, my life became comfortable, but my wife witnessed masturbation because I was relaxed. Naturally, my wife was furious and I was ordered to prohibit masturbation from that day until today. The story was also in my mother-in-law's ears, and she gave me a massage to help me when I came home tired after overtime. However, my crotch, which was touched by my mother-in-law's soft hand, became hard in the blink of an eye.