“Many [rural women] have precocious sexual biology but late maturing sexual psychology. For many, the period of sexual hunger is too long, but they cannot get married in time [to satisfy his hunger]. Lovers have frequent contact with each other, but their sexual control is weak. If by chance a male shows interest, the female lover, also in the grasp of “an unbearable hunger”, will give herself to the man”

Liu Dalin, sex sociologist.