As the evening wore on, Valentina Lux and Mistress Marlena hatched a devilish plan for their helpless submissive, Pretty Boy. They decided to serve him a dish that combined both their unique fetishes - caviar and scat. The idea was to get him to distinguish between their potent creamy excrements, which they would both defecate onto a plate or bowl for him.
Valentina and Mistress Marlena retreated to the bathroom, where they each proceeded to take a massive shit. Lifting their perfumed asses with grace, they squeezed out their thick, creamy poop onto separate surfaces. Once done, they called Pretty Boy into the room to join them.
"Pretty Boy, we have a very special treat for you," Valentina purred as she dangled the plate of tortilla chips covered in guacamole made from their freshly-created feces. The scent of ass and caviar wafted through the air as Mistress Marlena added some final touches to her dish.
"We want you to try and identify whose shit is in this," Valentina instructed with a wicked grin. "Mistress Marlena's or mine."
Confused yet aroused, Pretty Boy stepped forward eagerly, ready to indulge in the delicious combination before him. They both fed him tortilla chips dipped into their caviar-guacamole mixture, watching carefully for any hints of recognition on his face. They giggled like schoolgirls when they saw how much he was enjoying it.
Suddenly, Mistress Marlena pulled out a dilator from her bag and handed it to Valentina, who nodded in understanding. This was the second part of their plan - the unexpected stimulation of Pretty Boy's backdoor with the same combination of poop and phallic objects they had used earlier that evening.
Valentina held the dilator steady as Mistress Marlena coated its tip in their poop mix, then gently inserted it into Pretty Boy's rectum, pushing it all the way in until it reached his prostate. They watched as Pretty Boy winced slightly from the initial intrusion but quickly became lost in pleasure as they continued to feed him chips and tease his cock and ass simultaneously with their feces-covered toys.
His breathing became ragged, his hips bucking instinctively against their touches, even though they were both clearly playing with shit at this point. "That's right, my pretty pony," they heard Mistress Marlena whisper in his ear, her hot breath tickling his lobes.
Finally, Pretty Boy couldn't take anymore. With one last powerful thrust of his hips driven by pure, primal lust, he erupted onto the floor, his cum mixing with tears from the intensity of the orgasm induced by their unique scat play treatment.
As he lay there panting heavily, Valentina and Mistress Marlena shared a knowing glance of satisfaction. They had pushed him further than he ever thought possible - both physically and mentally - and they loved every messy minute of it.