Yuma-sensei guides a student who is struggling with sex! With gentle words and a bountiful body, she gives a step-by-step practical lecture! The teacher, who feels good being thrust in missionary and doggy style, can't stand it anymore and, forgetting her guidance, intensely shakes her hips in a cowgirl position and makes her big breasts jiggle while cumming for real! *This work is an excerpt from "Sex Teacher Yuma Asami" (product number: 53dv01394).