Obasan's first appearance!! My husband's stepchild is so incredibly incredible...

After two months of marriage, Toshiyo has built a happy family with her husband, but she has one problem. It is a non-shrinkable parent-child relationship with her husband's stepchild, Hiroki, who is looking for a job. One day, Toshiyo enters Hiroki's room to clean and witnesses a morning erection that has come from her panties... When Hiroki wakes up, he is surprised at how big it is, and Toshiyo wakes up to fire. Toshiyo's excitement never subsides at the massive amount of sperm released from her young body, and every time Hiroki is asked to do so, she accepts her super-sexual cock many times...