Moe-chan's mother remarried and she Moe to live with her uncle Matsuda. She has big breasts that are out of proportion to her still innocent face, and healthy, young skin that is tanned. When they take a mixed bath together and wash each other's bodies, she presses her huge breasts against him and asks him to teach her how to make a baby... Even though he is his stepdaughter, there is no way he can resist his desire. The uncle teaches sex to the slit where her legs start to itch, and has creampie sex with the tanned, busty girl.