**Beneath the Demoness's Skirt**

As I continued to pleasure Mari, her body began to undergo a subtle transformation. Her intimate area started to open up, revealing a depth I hadn't anticipated. A tendril extended from her folds, wrapping around my face and drawing me forward. I felt a surge of trepidation mixed with curiosity as I was pulled deeper into her. The tendril's grip was like a vice, but I didn't struggle. Instead, I focused on the task at hand, my tongue delving deeper into her flesh. Mari's moans grew louder, more husky, as she began to play with her own breasts. Her hands cupped and squeezed them, sending shivers through her body. The sight was mesmerizing, and I couldn't help but be drawn into her sensual world. Her eyes, still fixed on me, seemed to gleam with a sadistic light as she manipulated her breasts, her fingers tracing circles around her nipples. The forked tongue that had been a dormant part of her anatomy began to laze out, flicking back and forth as she gasped in pleasure. The movement was almost hypnotic, and I found myself caught up in the rhythm of her body. The demon lord's words echoed in my mind: "Have your fun, daughter." I realized that I was no longer just a slave, but a participant in her twisted desires. My focus narrowed to the task at hand, and I lost myself in the sensations of her body. Mari's grip on my face tightened, and she pulled me closer, her tendril-like appendage wrapping around my forehead. I felt a jolt of pain, but it was quickly subsumed by the pleasure she was experiencing. Her body was a furnace of desire, and I was the fuel that drove her passion. As I worked her nether regions, I became aware of the changes in her body. Her skin was taking on a deep, burnished red hue, and her scent was growing stronger, more overpowering. I was starting to feel lightheaded, my senses overwhelmed by the sheer intensity of her arousal. The demon lord's absence was a blessing, but I knew it wouldn't last. He would return, and when he did, I would have to face the consequences of Mari's pleasure. For now, though, I was trapped in this whirlpool of desire, forced to ride the waves of her passion. Mari's voice was a husky whisper, her words barely intelligible as she commanded, "Deeper, slave. I want to feel you inside me." Her body was a furnace of desire, and I was the spark that fueled her fire. I steeled myself, preparing to face whatever lay ahead, as I slid further into the depths of her sensuality.