Natalie grinned down at her student, her heart racing with excitement and anticipation. She leaned in closer, her firm ass pressing against his face as she whispered seductively, "That's it, baby. You're doing such a good job. Just a little bit more, and then you'll get your reward."
Her words sent shivers down his spine, and he eagerly lapped up the faint scent of her arousal, his tongue dancing over her pussy lips. He couldn't believe what was happening, yet he found himself completely powerless under her spell.
Natalie closed her eyes, relishing in the sensations coursing through her body. She could feel the warmth of his breath on her sensitive flesh, and it made her even wetter than before. She knew this was wrong on so many levels, but she couldn't help herself. She needed this release.
Just as she was about to surrender to the pleasure, she felt it building up inside her - the urge to shit. She gasped and her eyes snapped open, looking into his trusting eyes. For a split second, she debated pulling away, but then she remembered why she was here.
Slowly, she leaned back, pulling her pussy away from his eager tongue. His expression was one of confusion and disappointment, but he didn't move as she shifted her weight, positioning herself over his face.
With a smile that belied her inner turmoil, Natalie lowered her ass to within inches of his face. It took all of her self-control not to ruin the moment by clenching her butthole shut. She knew this was the moment of truth - would he stay or would he run?
As she hesitated, her stomach clenched and all of the tension in her body released. The burn of diarrhea shot through her intestines, and she knew there was no turning back now. With a sigh of resignation, she let go.
Hot, liquid shit poured out of her asshole and landed right on his face. It was warm and sticky and smelled absolutely disgusting, but he didn't move. Instead, he closed his eyes, taking in the full experience, and a chill ran down her spine.
Natalie leaned forward, surging the rest of the way forward until her entire weight rested on his face. She dug her fingernails into his skin, teasing him as she wiggled her ass, coating him in her filth. He whimpered beneath her, but still he didn't move.
With a final burst of ecstasy, she emptied her bowels, leaving nothing inside her. Her asshole twitched, expelling the last few bits of shit, and she collapsed onto his chest, gasping for breath.
When she finally mustered the strength to look down at him, she found him staring up at her with adoration. It was as though he had experienced some sort of transcendence through her feces. It was then that she realized just how far she had fallen, and how deep her need for this twisted power ran.
With a shudder, she pulled away from him, standing up and wiping her ass clean with a nearby tissue. She didn't say a word, instead silently gathering her things and leaving the room, leaving him there, covered in her filth, staring after her with a look of longing and confusion on his face.
As she made her way out of the building, she couldn't help but wonder if she would see him again. A small part of her hoped so, while another, more rational part of her knew that she needed to get help before she damaged someone else, or worse - herself.
The sun shone brightly in the sky as she climbed into her car, starting the engine and pulling away, leaving behind a trail of questions and uncertainty.