ROE-578 | Penetrated deep into my vagina by my stepson’s massive cock, I was made to realize that I am nothing but a female—a woman who has failed as a mother. — Reiko Seo

My daughter and her husband, Takuto, are living with us temporarily while they build their new home nearby. While I’m delighted that our once-quiet house—shared only with my husband—has become so lively, my daughter and Takuto both seem rather downcast. The reason? My husband keeps pressuring them to have a child. Then, one day, Takuto approaches me with a serious expression—only to reveal an unbelievable problem: his member is so large that it has led to a sexless marriage with my daughter. And then, I end up seeing it for myself—a phallus that far exceeds anything I could have ever imagined...