A sister who looks down on men with a cold gaze and a younger sister whose voice is sweet but has an extremely high urine output. The two of them are the little sister duo loved by M-men! "Teacher... we'll mark you thoroughly..." A perverted D/M teacher has no human rights, reaching orgasm while being showered in parabolas from the bodies of teens with excellent metabolism! Experience the joy of being trained with the urine of a sister duo that smells of sweet and sour youth!
