Five high school girls take on the challenge of a quick clothes-changing game! They change while protecting balloons from a train with a needle running along a special rail! They change from their uniforms to gym clothes, bloomers, school swimsuits, and maid outfits, with panty shots inevitable! They even change into risqué swimsuits with slippery slip-ons? And then there's the final challenge, where they put on a fixed vibrator! Their bodies react super sensitively to the lewd stimulation! They're all so turned on that they fail the quick clothes-changing challenge! The high school girls are already so wet down there that they're turned on, so they have to make a no-questions-asked punishment game of immediate fucking!!