When my pregnant wife needed support, her stepmother, Shionko-san, agreed to stay with us for several months. Thanks to Shionko-san, my wife's irritation seemed to have disappeared. However, just when I thought everything was going well, she caught me masturbating in our bedroom. Furious, she ordered me to abstain from any sexual activity. One day, feeling restless due to my prolonged abstinence, Shionko-san comfortingly embraced me. Unable to resist her vulnerable chest, an erection formed. To my surprise, she seductively proposed that I could rely on her even during such times...