VEC-459 Mother's Best Friend Yumi Sakurai

Even though he was a student taking entrance exams, he was unable to concentrate on his studies and was at a standstill. She quickly becomes obsessed with lewd thoughts and can't go back to studying until she pulls out once. Manabu is troubled by such worldly desires, but then her mother's best friend Yumi comes to visit. Manabu is completely charmed by the seductive adult charm that emanates from his girlfriend, Yumi, and instead of studying, he indulges in pleasure with his hands, but Yumi comes to see what's going on.