To support his wife who is about to give birth, his mother-in-law, Kazuka, came up to Tokyo from his wife's family home. His wife and Kazuka look so similar that they could be sisters. There's a deep reason why he gets an erection seeing his mother-in-law like this. Because I forced my pregnant wife, she got angry and forbade me from masturbating. Although I was somehow enduring it, beautiful and seductive Ikka-san is completely unaware of this and stays close to me. Finally reaching my limit, I took a sneak photo of Ikka-san's naked body while she was bathing. When I reached down to my crotch in the bedroom, Ikka suddenly entered the room...
