A female student with a model-like figure—she must be popular. Even tied up in a locked room, she defiantly glares at us with contempt, seemingly fearless. At first glance, she appears remarkably composed. But it's merely youthful arrogance; once we apply the vibrator, she quickly lets out moans laced with breathy feminine cries. Just a light touch of the electric massager and she instantly wets herself, squirming helplessly. What an undignified girl. We spread her prized beautiful legs wide and suspend her in a humiliating M-shaped spread. Teasing her with the vibrator makes her writhe and cry out as if begging for release, so we let her taste a brief orgasm. When we torment her clitoris again with the electric massager, she amusingly squirts urine repeatedly with a loud pss-pss sound, drenching the floor beyond measure. The electric massager has become a urinary faucet—her very own incontinence pump!