私の義理の妹は彼ら全員の中で最もふしだらで、彼女は私にそれを証明する方法を知っています

INTIMATE CONFESSIONS BETWEEN THE TWO, BOTH STEPSISTER AND STEPBROTHER SHARE THEIR EXPERIENCES WITH THEIR DIARY AND ALSO SHARE THEM IN BED, LETTING ALL THEIR HOTTEST DESIRES AND FANTASIES OVERFLOW AS ONLY STEPBROTHERS KNOW HOW TO DO.