As the night wore on, the school dance came to an end, and eventually, all the other guests departed. The professor could hear the sounds of the remaining schoolgirls giggling and playing in the main hallway outside his classroom as they finished cleaning up the dance floor. He waited patiently, knowing that soon enough they would come to him, their toilet slave.
After several minutes of loud squealing and laughter, the door to his classroom slowly opened. The four girls walked in, clad only in their filthy dance costumes that were now caked in their own excrement and urine. Their faces were flushed with excitement, and their eyes gleamed with anticipation.
The professor stood up from his desk, bowing his head respectfully as they entered. "My lady slaves," he whispered, his heart racing with desire. "I have been waiting patiently for you."
They closed the door behind them, locking it from the inside. There was a moment of silence as they looked around, taking in the darkened classroom, illuminated only by the dim light from the hallway. Then, they turned their attention back to him.
"You've been such a good boy, Professor," the first girl said, her voice dripping with sarcasm. "We think it's time to reward you for your obedience."
The professor nodded eagerly, not daring to look directly at them. "Yes, my lady slaves," he replied, his voice quavering slightly. "I am at your service. What do you wish me to do?"
The second girl smirked and approached him slowly, her hips swaying from side to side. "Well," she began, running her fingers through his tousled hair, "we thought maybe... you could help us clean up."
The professor's eyes widened in surprise, but then he realized what they meant. "Of course, my lady slaves," he said, his voice growing steadier. "I will clean you thoroughly, from top to bottom."
The third girl giggled and pulled down her disheveled dance costume, exposing her bare bottom to him. "Go ahead," she said with a devilish grin. "Don't hold back."
The professor knelt before her, his heart pounding in his chest. He reached out slowly, his tentative fingers brushing against her soft skin. She gasped and arched her back, giving him better access to her dirty anus. He took a deep breath, pulling his face close to her behind and inhaling the rich, earthy scent of her shit.
"Mmm," he moaned, licking his lips. "You smell divine."
The fourth girl watched with eager anticipation as the professor began to lick and kiss her friend's asshole. She edged closer, tugging at her own dance costume. "Your turn," she purred, presenting her own bottom to him.
The professor glanced up at her, his eyes full of longing. He reached out, pulling her close so that her steaming asshole was pressed against his face. She giggled, wobbling her hips from side to side, teasing him as he licked and nuzzled her tight hole.
Meanwhile, the first girl had pulled down her panties, revealing her shaved pussy. She stepped forward, straddling the professor's face as he worked on the third girl's ass. She was wet with excitement, the sweet scent of her arousal filling the air around them.
"Fuck my pussy, Professor," she groaned, rocking her hips forwards so that her slippery folds brushed against his lips. "Eat me out."
The professor opened his mouth wide, eagerly lapping at her juices as she fucked his face. He could feel her walls clenching around his tongue, and he knew she was about to cum. Sure enough, after a few more moments of passionate eating, she cried out, her voice ringing through the quiet room.
"I'm cumming! Oh fuck, I'm cumming all over your face!" she screamed, her body shaking with pleasure as she rode out her orgasm.
The fourth girl climaxed soon afterwards, her asshole trembling violently as she emptied her bowels into the professor's waiting mouth. He lapped up every drop, savoring the salty, bitter, yet oddly addicting taste of her excrement.
When all four girls had finished emptying their bowels and cumming, they collapsed into a heap on the floor, giggling uncontrollably as they stared up at the ceiling. The professor slowly stood up, his body trembling with exhaustion and satisfaction.
"Thank you, my lady slaves," he whispered, bowing low before them. "Your filth is my treasure. I will serve you faithfully, until the end of time."
The girls giggled once more, then stood up, straightening their dirty dance costumes. "See you at school tomorrow, creep," one of them said, opening the door and pushing him roughly aside.
As they left the room, the professor lay down on the floor, eyes closed, a peaceful smile on his face. For now, he was content, knowing that he had pleased his mistresses and that they would be back for more. Tomorrow, the cycle would start all over again.