After her younger brother was born, her mother, Minori, had bigger breasts. Although I thought that it was a bad thing for my son, I couldn't take my eyes off Minori's chest. "That boob is surely full of breast milk..." As I think about it, my fantasies spread more and more. I want to be pressed hard by those boobs! I want to get breastfeeding while feeling breast pressure! Enchanted by Minori's breasts, Yoshio finally opens the forbidden door...