After work, a busty OL in sweat-soaked black pantyhose takes on a brutal climax challenge: hold still for ten minutes while a vibrator and fingers torment her dripping pussy. Succeed and she wins a million yen; fail and a thick cock pounds her relentlessly in punishment, making her squirt and convulse uncontrollably. The raw, pantyhose-clad legs and merciless creampie leave her completely broken in ecstasy.