It was a warm, sultry summer day, and my mistress, Aria, was lounging in her garden. She wore a figure-hugging crimson dress that showed off her curvaceous figure to perfection, and her long raven black hair swayed gently in the breeze. As I approached her, my heart pounded with anticipation and fear.
"Good boy," she purred when she saw me, her emerald eyes flashing with amusement. "I have a special treat for you today."
With that, she stood up and turned her back to me, revealing a pair of shiny black panties that hinted at what was to come. I knelt behind her, my hands trembling as I waited for her next instruction.
"I'm feeling very naughty today," she whispered, still not looking at me. "I think I'm going to let you enjoy my waste this afternoon."
My stomach churned at the thought of it, but I knew better than to protest. Aria was in control, and I was her plaything. So, I lowered my face towards her ass, my nose grazing against the soft fabric of her panties. My nostrils flared as I inhaled her luscious scent, a mix of perfume and feminine musk that was intoxicating.
She tickled my ear with her fingertips. "That's a good boy," she cooed. "But for today, I think you should start with my piss. It will cleanse your palate before you move on to the main course."
My heart raced even faster as I realized what she meant. Aria had a special way of urinating - she could hold it in for long periods, making the stream powerful and concentrated. I could feel her warm, halting pisses against my face as they trickled down my cheeks and neck. She peed for several minutes, her moans of pleasure echoing in the quiet garden.
When she finally finished, she turned around to face me, her smile fiendishly bright. "Now," she said, her voice low and sultry, "it's time for the main event."
She squatted down onto the soft grass, her plump rounded buttocks, bare and inviting, rising towards the sky. Without any prompting, I dove headfirst into her opening, my tongue lapping up her soft, warm shit. It tasted salty and musky, and it filled my mouth within seconds.
Aria closed her eyes and revelled in the pleasure I was giving her, moaning softly as her fingers tangled in my hair. She held this position for several minutes, allowing me to clean her thoroughly before she withdrew. Wiping her ass with a satisfied smile, she turned to face me once more.
"That was wonderful, my dear slave," she purred, running a manicured finger along my chin. "Now it's your turn."
With that, she thrust her face back towards the sky, her perfect ass hovering mere inches above the ground. As I approached, I couldn't help but feel a twinge of fear mingled with excitement. But this was our ritual, and I knew what was expected of me.
I pressed my lips to her exposed anus, kissing her gently before pushing my tongue inside her, tasting her once again. She gasped, her hips bucking against my face in a mixture of pleasure and anticipation. For several minutes, I worshipped her ass, lapping up every last drop of her shit and savoring the taste.
When I finally pulled back, exhausted but triumphant, Aria smiled down at me, her eyes bright with approval. "A good day's work, isn't it?" she asked, her voice full of delight.
I nodded, my chest heaving as I tried to catch my breath. "Yes, mistress," I managed to murmur between gasps.
She extended a hand, helping me to my feet. "And now," she said, leading me towards a nearby stream, "it's time for a nice refreshing bath to cleanse away the day's filth."
Together, we waded into the cool water, washing away the evidence of our secret indulgence. As we scrubbed each other's skin, I couldn't help but think how lucky I was to have found a mistress as depraved and passionate as Aria.
And as I looked into her emerald eyes, I knew that I would do anything for her, no matter how taboo or twisted her desires might be. Because in her eyes, I was not just a slave - I was her masterpiece, the perfect conduit for her most forbidden fantasies.