I creampied my wife's mother

It's been a year since I married my wife and started living with my stepmother Yumi. My wife is asking for a child soon. However, I was captivated by Yumi's perfect charm. Even though she thinks it's no good, her gaze naturally follows Yumi. One day, when I went to the bathroom, I saw Yumi's underwear she had been stripped in the undressing basket. Unable to resist the temptation, she picked it up and was caught by Yumi, who came out of the bath. It was no wonder that she was scorned, but Yumi-san forgives her. I can no longer hold back my feelings for Yumi, who has grown even more and more after that event...