Severus snape was in a pickle. He had started his class like normal, given instructions and walked around the classroom. Suddenly he felt a sharp twinge in his bladder. The sudden feeling made him bend over a bit in pain. He felt the eyes of his students on him so he stood up, brushed off his robes, and continued walking. After 15 minutes of the 1hr 30min class had passed Severus felt his bladder getting heavier and heavier. He sat down at his desk and tried to discretely fix his waistband. He pulled the waistband of his trousers and of his royal blue undies away from his groin, but a noise startled him. Looking up and accidentally snapping the band back onto his groin, he looked up to see Longbottom picking a jar up off the floor. Snape was about to yell at the boy, before he felt another twinge in his bladder, this time stronger than before. Snape crossed his long legs and shook them gently under the desk. He slipped his hand down between his crotch and squeezed. Looking around to make sure no-one noticed, Snape squeezed his crotch again. "Aaaah" he thought in his momentary relief. Suddenly he heard his name being called. "Professor Snape," called out Draco, "Can you come help me with this potion?" Snape hauled himself out of his chair and slowly walked toward the blonde boy. He squeezed his legs together with each consecutive step. As snape looked over dracos shoulder at the swirling blue potion he felt another twinge of his bladder followed by a small drop of pee. Snape said, "It's fine draco." Before he scurried off into the supply cabinet. Snape shut the door and used this moment of privacy to give his bladder a nice long squeeze. He sighed and felt another droplet hit his underwear. As he began to panic, Snape checked his watch. There were still 55 minutes left in class! He couldn't wait that long. Snape glanced around the small room. he noticed a small bucket and knew what he had to do. Snape put a quick locking spell on the door before he pulled the bucket to the center of the room. He knew that he would have to be quick and wouldn't have time to empty his busting bladder completely. He heard a voice call out, "Professor snape where are you." He responded, "I am getting a potion ingredient, I will be out in a moment." Snape struggled for a moment to get his belted pants off as he clenched his bladder. It was stuck. Snape felt a longer spurt forcefully exit his body and grabbed himself even harder. Finally his pants came down, but before he could get his underwear off he felt another pressure from behind. He felt a small nugget drop into the back of his undies. Snape quickly sat on the bucket and inspected the damage in his pants. The wet stain was the size of a small cup and the poo left a stain as well as it weighed down his underwear. He dumped the stuff into the bucket before he sat down. Snape began to release his bladder but stopped quickly. He had been in the cupboard for ten minutes! His students would surely know. He quickly cleaned the bucket with a spell but had not time to clean the underwear before he slid his pants on again. He grabbed an ingredient pff a shelf and walked out of the cupboard. All of the students looked up at the teacher who had been gone for a while. Snape sat down at his desk quickly, "OOOH" het thought to himself "I am not going to make it 45 more minutes." Snape made a final decision. He said, "Students class is over early, you have 45 minutes of free time get out now, I will clean your cauldrons." The students rushed out of the room. Once they were all gone snape sprinted. Since students were still in class there was no-one in the halls. Snape clutched his crotch as though his life depended on it and clenched his cheeks as he ran through the winding halls. The teachers lounge and toilet was so near. Suddenly he felt a new wave of urgency. Severus Snape felt his bladder come unhinged and felt the pee run down his legs in long torrents. The poo followed shortly weighing down the back of his pants and making it lumpy. Snape waddled to the teachers lounge and walked in. There he saw McGonagoll, Pomfrey, and Dumbledore standing there. Dumbledore pulled him aside and said, "You couldn't make it? DOn't worry it happens to the best of us.' Then Madam Pomfrey ushered snape into the bathroom. She magicked off his pants and had him sit on the toilet. As he emptied out the last bits of his bladder she threw away his underwear. Then she put a nappy on him. Snape began to protest but it was too late. She put a spell so that only she could remove the nappy. Then She gave him a fresh pair of pants and sent him on his way. Severus walked back to class with a new bunch between his legs. As his next class entered the room and he tried to hide the diaper that covered his crotch, he felt his bladder twinge again.
