Although it was his first time dating a girlfriend... his virginity was taken by her mother. (Yamamoto Kaoru, KEED-83)

Noboru is discovered to be a virgin by Kaoru Yamamoto, the mother of his first girlfriend, Kanna. He succumbs to Kaoru's allure, leading her to deflower him through kissing, oral sex, and finally, sexual intercourse! Although he feels guilty, Noboru gradually becomes addicted to her mature vagina…