The uncle's merciless teaching begins with an innocent beautiful girl who has never had sex properly. The uncle, who has been through a lot of sex, pushes his dark, seasoned cock into Mio's mouth and revels in pleasure. He thrusts his hard cock into her narrow vagina and makes violent piston movements. The real doll is tormented by the guilt of doing something wrong and is brought to tears. The uncle's desires are fulfilled as he showers her with fishy bodily fluids.