The silence of the lecture hall was heavy, broken only by the low, electric hum of the leftover golden liquid and Vespera's shallow, ragged breathing. She remained bent over the stone workbench, her high-collared violet robes stretched dangerously thin over the broad, invite-only curve of her hips.
Caelum didn't move immediately. He picked up the glass stirring rod, dipping it into the bowl of glowing, viscous gold. It came out dripping, the substance clinging to the glass like liquid honey, radiating a heat that made the air shimmer.
"A professor should know that a catalyst is wasted if the surface isn't... properly prepared," Caelum murmured.
He reached out, his hand sliding up the back of her silk-covered thigh. Vespera let out a sharp, wet gasp as he hooked his fingers into the hem of her robes and hiked them up. Below, she wore nothing but sheer, black lace stockings held up by delicate garters, leaving the pale, plush mounds of her backside exposed to the cool air and his golden gaze.
Caelum tilted the rod, letting a thick, heavy drop of the golden liquid fall onto the small of her back. The moment the alchemic substance touched her skin, it didn't just sit there—it hissed, sinking into her pores and turning her indigo Aether into a chaotic violet fire.
"Oh... gods," Vespera whimpered, her elbows bucking as she leaned harder into the table. "It's so... heavy. It's burning through me!"
He used the rod to paint long, glistening streaks of gold down the valley of her spine and across the trembling flesh of her buttocks. With his other hand, he began to knead her, his fingers sinking deep into her soft, mature curves. The gold acted as a lubricant and a conduit, making every touch feel like a lightning strike.
He leaned in, his lips brushing her ear as he watched the gold liquid mix with the fine sheen of sweat already coating her skin. "You wanted to see the full reaction, Professor? Look at yourself. You're melting before I've even touched your core."
Caelum unfastened his trousers, his own heat radiating against her. He didn't enter her yet. Instead, he took another handful of the warm, golden liquid and smeared it directly over her opening. Vespera was already dripping—a thick, translucent nectar that smelled of jasmine and desperation.
When he finally drove into her, the sound was a messy, squelching *thud* that echoed through the amphitheater.
"Ah! Caelum!" Vespera screamed, her head tossing from side to side, her bun finally coming undone and sending a cascade of black hair over her face.
The intercourse was a violent, primitive display of chemistry. Because of the golden liquid, every thrust felt like a total atomic realignment. Caelum gripped her waist, his thumbs digging into her hips as he hammered into her with a relentless, driving rhythm.
The mess was incredible. The gold liquid mixed with her own natural fluids, creating a frothy, shimmering foam that coated their thighs and splashed onto the stone floor with every wet, rhythmic *slap*. Vespera was a portrait of shattered dignity—her tongue peeking out from her lips, her eyes rolled back, and her heavy breasts swinging and bouncing against the desk as he shook her entire frame.
"I'm... I'm breaking! I can't hold it!" Vespera wailed.
The first climax hit her like a wave—a violent, shuddering contraction that clamped her tight around him. But Caelum didn't stop. He used his Gold Aether to force her back up, his hands reaching around to pull her heavy, sweating breasts upward, kneading them with a rough, possessive force.
He drove deeper, his hips cracking against hers. He triggered her second orgasm within seconds, then a third. Vespera was sobbing now, her voice a series of broken, needy chirps. Her indigo Aether was no longer a cloud; it was a flood, saturating the room in a deep violet glow that pulsed in time with her contractions.
"One last reaction, Professor," Caelum growled.
He delivered a final, devastating series of thrusts, his Gold Aether surging into her in one massive, pressurized burst. Vespera let out a silent, wide-mouthed scream as her entire body went rigid, her nervous system overloaded by the sheer volume of his power.
She collapsed onto the workbench, her cheek pressed against the cold stone, her body twitching with aftershocks. She was a complete mess—drenched in sweat, gold residue, and the evidence of her own multiple releases.
Caelum stepped back, adjusting his clothes with a calm, clinical ease. He looked down at the woman who was supposed to be his teacher, now reduced to a shivering, saturated reagent.
"Demonstration concluded," he said, his golden eyes burning with satisfaction. "I suggest you stay here until you've... restabilized."