Diana and Natalie continued to enjoy their impromptu afternoon of toilet play, giggling and gleefully encouraging Markus to indulge their every whim. As he knelt before them, his face pressed into Diana's soft butt crack, he couldn't help but feel a strange sense of submission and arousal wash over him. It was clear that these two girls were in control, and he willingly surrendered himself to their desires.
Their plan was for him to take turns being fed their massive shit loads, but they decided to mix things up for his sake. They would each take turns wiping their asses clean before forcing their still-fresh shit into his mouth, giving him the unique experience of tasting fresh shit mixed with their gas-filled fart clouds. It was an idea that appealed to them both; some might say it was twisted, but they found it exhilarating and intimate.
"Go ahead, slave," Natalie urged with a playful smirk, "Get ready for your treat."
Markus knew what was coming next and didn't hesitate to open his mouth wide as Diana pushed her ass closer to him. His tongue darted out and lapped at the thick, warm trail of her shit streaming down her ass crack, eager to taste her essence. He didn't flinch as it coated his tongue, and instead savored the mix of flavors - bitter, salty, and just a hint of musky sweat. It was an intoxicating taste that sent shivers down his spine.
After he had cleaned up Diana's ass, Natalie took her turn, straddling him so that her saggy pussy was inches above his face. With practiced ease, she pushed her shit-encrusted ass towards him, inviting him to clean it off with his tongue once more. He did so eagerly, trying to keep up with the steady flow of shit being pushed towards him by her grinding hips. His cheeks bulged with every bite as she grunted in approval.
The smell in the room was overwhelming, a mix of stale urine, sweat, and pungent feces that itched at Markus's nostrils. Yet he couldn't deny the strange thrill coursing through his veins; this was beyond anything he'd ever experienced before. The girls fed him their shit like it was a delicacy, watching with dark eyes as he lapped it up greedily, hungry for more. They took turns grinding their asses into his face, teasing him with the promise of fresh samples before finally allowing him a breather.
"Good boy," cooed Diana, running a hand through his hair. "Now it's time for the grand finale."
Markus felt her finger trap tightly around his cock, and he moaned in anticipation as she began to stroke it slowly. Natalie squatted down beside him, her fat ass hovering tantalizingly close to his face. She grunted as she released an enormous turd into the toilet bowl, a cloud of putrid gas wafting up to envelope them both. Then she turned towards Markus, her lips curled into a naughty smile.
"Here's a little something special just for you, my toilet slave," she purred, rubbing her ass cheeks together before positioning herself above him.
Without further ado, she lowered her cheeks onto his face, allowing him to taste her fresh shit straight from her asshole. It was sweeter than Diana's, with a slightly sour tang that made him gag reflexively at first. But he forced himself to swallow, eager to please these two beautiful women who had taken such good care of him all afternoon. And when he looked up, he saw that they were pleased with him too - their faces lit up with shockingly intense orgasms that left them panting and spent on the floor.
In that moment, Markus knew that he would do anything for these girls; their twisted desires had become his own. He was their toilet slave, bound to them by the filth and the taboo acts they shared. And though his face was covered in shit and his mouth was filled with their excrement, he couldn't help but feel a strange sense of fulfillment and belonging.
