A serious and quiet black-haired busty schoolgirl who came to the bookstore without knowing anything about it is immediately penetrated by a cock coated with aphrodisiac, which slides her panties aside from behind! A plain super busty schoolgirl with an estimated H cup, a pair of exam-taking students with estimated F & E cups, and a plump busty schoolgirl with an estimated G cup! They become so sensitive that they can't resist, and they keep coming, shaking their big breasts and drooling as they moan!