Vivian London, a stunningly beautiful Mistress in her early thirties, settled onto the edge of the bathroom's shower tray. Her round bottom perched delicately, the thin strip of fabric that was her thong draped sensually over her barely-there panties. She had just come from enjoying a sumptuous dinner, the memory of the rich meal still lingering on her tongue.
"Oh, my dear servant, aren't you just dying to see my fat asshole with a massive shit inside?" Vivian purred as she arched her back, pushing out her plump buttocks for all to see. The contrast between her smooth, perfect skin and the dark brown mass inside her rectum was startling. It was obvious that she had just consumed a copious amount of food, some of which was now transformed into a dense glob of fecal matter.
Slowly, almost teasingly, Vivian lowered her glistening thong, giving her followers a glimpse of her shaved pussy beneath. But it was her asshole that held everyone's attention as she began to push, grunting in satisfaction as the first small turd squirted out. It was quickly followed by a larger, firmer shit that oozed out of her now-puckering anus.
"Mmm...that feels good," she moaned softly, her fingers digging into the tiles at her side. "I don't think you understand just how full I am. The food was just too damn delicious!"
Vivian's face contorted into a grimace as she pushed again, wincing as the pressure built up behind her walls of fat and muscle. Suddenly, there was a gush of watery fluid, followed by a thick stream of urine that seemed to flow out of her flooding her panties entirely. The smell of ammonia was strong as her urine mixed with the feces already coating her skin.
She laughed softly, shaking her head in amazement at the sight before her. "I didn't think I'd end up with such a messy ass, but hey, it's part of the fun, isn't it?" She reached down, her long, manicured fingers probing at the excrement between her buttocks. "You know you want to taste this, don't you?"
Vivian leaned back slightly, spreading herself wide open, allowing her audience a full view of her exposed ass and gaping asshole. "Come on," she purred, her voice thick with lust, "take a big bite. Taste how sweet my shit is."
As she watched through the camera, Vivian could see someone taking her bait. She smirked as she felt the warm tongue licking at the mess between her cheeks, tasting the combined flavors of shit, piss, and sweat. "Oh yes," she hissed, "that's it. Keep lapping it up, you filthy bastard."
As Vivian finished her impromptu show, she wiped her ass clean with a wad of toilet paper, leaving only a small hint of her dark secret behind. Standing up, she flexed her ass, feeling the weight of her pristine body contrasting sharply with the sinful act she had just performed.
Winking at the camera, Vivian leaned in close. "Till next time, my little cocksucker," she breathed, her voice husky with desire. And with that, she stepped away from the camera, leaving her audience with one last glimpse of her perfect ass and the darkness within.