The volleyball club at a certain school has a rule that says, "You can drink as much water as you want during club activities, but you can't go to the toilet!" The thirsty students drink a lot of water and want to go to the toilet, but the teacher won't allow it! Students who can't hold it in any longer all leak during practice. The teacher wipes the pussy of the innocent girl who breaks down in tears and gently takes care of her, but...