Recently, my pregnant wife has been living with her mother, Kanako-san, at our house to help take care of her. Thanks to Kanako-san, life has become more comfortable, but somehow she caught me masturbating. Of course, my wife was furious and has forbidden me from masturbating since then. It turns out that even Kanako-san heard about it, so when she saw me come home tired after work, she decided to give me a massage to cheer me up. However, as her soft hands touched my crotch area, it quickly became rock hard...

数日前から妊娠中の妻を支える為、義母・かんなさんが我が家で一緒に暮らしている。義母のお陰で生活は快適になったが、気が緩んだのかオナニーを妻に目撃されてしまう。当然、妻は激怒してその日から今日まで僕はオナニー禁止を命じられていた。その話は義母の耳にも入っていて残業終わり、疲れて帰ってきた僕を労う様にマッサージをしてくれた。しかし、義母の柔らかい手で触れられた僕の股間は瞬く間に固くなっていき…。