"Kanojo no Okaa-san" presents a taboo tale of a son's lust for his mother's mammaries. In this episode, he finds her napping, her generous cleavage spilling out of her low-cut top. Unable to control himself, he reaches out, grasping and kneading her soft, warm flesh. She stirs, catching him in the act, but instead of pushing him away, she allows him to continue, her nipples hardening under his eager touch.