To support my wife who was about to give birth, my mother-in-law, Yukimi, came up from my wife's hometown. Thanks to her, my wife's burden decreased, but I had been ordered not to masturbate and found it increasingly difficult to control my swelling crotch every time I smelled her scent. One day, pushed to my limit, I peeked at my mother-in-law as she changed after a bath. Absorbed in the voyeurism, I made a noise and was caught by her. She seemed to understand that something was up and suggested something so lewd...
