Sex training with Mayu Minami, a non-erotic girlfriend. Mayu's hands and feet are restrained and she has a collar around her neck. At the man's instruction, she is forced to say "Put your dick in" and he thrusts it in all at once. He thrusts his dick deep inside her, and then they both move their hips in the cowgirl position. When he commands her to stick her ass out, he pulls her collar and thrusts his dick hard into her pussy until she cums. In missionary position, he thrusts his dick deep inside her, making her cum repeatedly, and finally he cums on her face.