Deep in the forest, not far underground, a woman lay against a wall with her hands pinned above her head. The blue luminescence of the small cave made her dark skin appear almost purplish. Her body, once petite and toned, had been transformed. The constant pregnancies by the tentacle creature had changed her flat stomach into a distended belly, and her small breasts had grown into two perverse melons that draped over her belly. In the unchanging glow of the cave, there was no way to know how much time had passed since she had fallen in. The only indication of the passage of time was the cycles of impregnation and birth that she endured.
Myriel observed her body, both mesmerized and horrified. Despite the changes to her body, she still held out hope that there was some way to escape from the place. After all, she was a very skilled thief that had escaped numerous dangerous situations before. Why should this one be any different? She just needed to find a way to free herself of the sticky substance holding her hands in place above her head.
The creature may have caught her when she first fell in, but that was when she was caught by surprise. She noticed that there were only a few larva crawling around aimlessly and an occasional tentacle lazily changing position. Even with her transformed body, Myriel remained quite limber. Cautiously, she tried twisting, turning, and leveraging her body to pull the substance away from the wall. No amount of contortion helped to liberate her, nor even to tear the substance even a little bit. She tried and tried until her body was glistening with sweat and her heart was pounding in her chest.
Myriel's focus shifted to an unpleasant wetness crawling up her thigh. She recoiled at the sight and sensation of a cucumber-sized larva moving up her leg, its face just a small hole for a mouth. She shook her body, but the thick mucus of the larva allowed it to stay firmly attached to her, its direction pointed towards her large breasts and the milk within.
"No you don't, you dumb creature." As the creature crawled up her belly, she raised her leg and squished the pliable larva between her thigh and belly. It let out a shocked squeal, fell to her side, and crawled away. This time, with a bit more haste. Myriel shivered at the warm, wet sensation that the larva trail left behind.
Her relief was short-lived when a thick, slimy tentacle with a sizable hole at its entrance slithered towards her, taking its time as if it knew that she couldn't escape. Myriel squirmed, knowing what was to come, as she had experienced it numerous times before. To the tentacle, it was like a game, to Myriel, it was a few precious moments before her violation. As the fleshy skin of the tentacle found her asshole, it squeezed into her with little effort due to it's lubricated skin and strength.
With each second that passed, it pushed deeper, a couple inches at a time, twisting through her insides. Myriel gasped at the invasion inside of her. While not painful, it was certainly an uncomfortable feeling. She continued to shift around to find some comfort against the tentacle's deep probing.