GROS-011 - Sister Training Mitsuka

My younger sister, who has excellent grades at school and is also the student council president, transforms into an obedient female pig when she returns home! ``Onii-chan... Please scold Mitsuka more, please...'' The honor student, whose uniform has been stripped off, reveals his plump body and lets out a sigh! Deep slapping, nose torture, restraint vibrator torture, neck strangulation, cock training... Every time the innocent younger sister is defiled, her eyes of misery get wet! ``Onii-chan...I'm sorry...'' My sister and I share a lewd secret...