I was thoroughly pampered and pleasured to the bone by my M-cup busty stepmother. (Ye Ai JUQ-870)

My father remarried. My new mother, Ai, was my elementary school homeroom teacher. Ai always treated me like a child, and her physical contact was unusually intense. I felt it was a bit too much... but when I was surrounded by those huge breasts, everything else became irrelevant. From then on, I became a student, my grades stagnated, and I was depressed. Ai volunteered to be my tutor, saying, "I'll reward you every time you answer correctly." And each time I answered correctly, the reward became increasingly excessive...