The forest clearing was still heavy with the scent of ozone and the musky afterglow of the trio's encounter. **Lyra** and **Xavia** lay entangled on a bed of crushed ferns, their bodies exhausted from the violent chemical synthesis they had just endured. Their breath was slow and steady, their Aether cores dimming as they drifted into a deep, post-coital slumber.
Caelum, however, remained awake. His Gold Aether was not spent; it was vibrating at a new, curious frequency. The "Eclipse" with Xavia had left his core feeling pressurized, seeking a container to stabilize the excess energy.
He sat up, his bare skin glistening with sweat, and noticed a strange, rhythmic *thrumming* coming from the nearby undergrowth.
From beneath the roots of an ancient, hollowed-out tree, a translucent, azure substance began to flow. It wasn't water, and it wasn't quite solid. It coiled and shifted, gradually rising into a humanoid shape.
A **Slime Girl**.
She was a rare variant of the forest's elemental spirits—an amorphous creature made of thick, viscous liquid that shimmered like liquid sapphires. She had no clothes, her body defined only by the tension of her surface membrane. Her "skin" was cool and slightly glowing, and where her core should be, a pulsating heart of pure, unrefined mana flickered.
Caelum stared at her, his scientist's mind immediately calculating her properties. *She is a perfect solvent,* he realized. *She has no fixed structure. She can absorb any frequency without shattering.*
The Slime Girl tilted her head, her featureless face mimicking a look of curiosity. She was drawn to the gold radiance leaking from Caelum's skin. She glided forward, her movements making a soft, squelching sound against the moss.
"A blank slate," Caelum whispered, reaching out a hand. "Let's see how much pressure you can hold."
As his fingers touched her "shoulder," he didn't feel solid flesh. Instead, his hand sank into a cool, incredibly dense jelly that immediately began to pulse in time with his heartbeat. The Slime Girl let out a soft, melodic trill, her liquid body surging upward to wrap around his arm, tasting the Gold Aether.
Caelum didn't pull back. He stepped into her, allowing her amorphous form to coat his chest. The sensation was unlike anything he had felt with the others. She was wet—impossibly wet—and her "skin" felt like a thousand tiny, vibrating membranes massaging his pores.
Driven by a raw, experimental urge, Caelum guided her down to the moss. Because she was a slime, she could reshape herself to fit him perfectly. She formed a tight, pulsating channel that mimicked a woman's anatomy, but with a degree of friction and suction that no human could achieve.
When he entered her, the sound was a deep, wet *gloop*. There was no resistance, only a total, enveloping suction.
"Absorb it," Caelum commanded, his Gold Aether surging into her liquid depths.
The Slime Girl's entire body began to glow gold. As he thrust into her, her liquid form rippled and splashed, her "breasts" and "hips" swaying with a mesmerizing, gelatinous bounce. Every movement created a messy, splashing symphony. Her body was a natural lubricant, making the intercourse incredibly fast and high-friction.
Caelum began to push his energy into her core. He wanted to see if he could "tame" her by overwriting her wild mana with his own signature. He gripped the sides of her liquid waist, his hands sinking inches deep into her translucent flesh.
She wasn't just taking his energy; she was *replicating* it. She began to take on a golden hue, her cool sapphire body turning into a warm, molten amber. She let out a series of high-pitched, warbling moans, her body vibrating so hard that the moss around them turned into a fine mist.
The mess was absolute. Golden slime coated Caelum's thighs, his chest, and his hands. He felt like he was drowning in a sea of pure, sentient pleasure. As he reached the climax, he unleashed a massive, pressurized burst of Gold Aether directly into her heart-core.
The Slime Girl's body expanded for a moment, glowing brilliantly, before she collapsed into a puddle of shimmering, golden goo on top of him. But she didn't disappear. Slowly, she reformed, now smaller and more defined, her liquid eyes now glowing with the same golden hue as his own.
She nuzzled against his neck, a soft, purring sound vibrating through her liquid frame. She was no longer a wild spirit; she was his **familiar**, bound by the most intimate of syntheses.