The air in Omega’s quarters was thick with the scent of old parchment, sterile medicinal herbs from the infirmary, and the heavy, musk-laden heat of two massive demons. The room was a sanctuary of dark mahogany and velvet, illuminated only by a few flickering tallow candles that cast long, dancing shadows against the vaulted stone ceiling.
Mountain was pinned to the center of the oversized bed, his earthy, stone-textured skin contrasting sharply against the deep crimson sheets. For all his towering height and immense strength—the kind of strength that could move boulders in the greenhouse—he was currently rendered motionless, held down by the sheer, overwhelming presence of Omega.
Omega was a mountain of a different sort. His darker lavender skin glowed faintly in the dim light, his massive, carved muscles rippling as he braced himself over the Earth ghoul. He had Mountain’s wrists pinned above his head with one hand, his grip like a vice, while his other hand worked with a cruel, deliberate slowness.
Omega’s deep, resonant voice, usually so full of kindness and humming melodies in the infirmary, had shifted into something darker, a low rumble that vibrated through Mountain’s chest.
"Look at it," Omega murmured, his voice a velvet threat. He reached down, gripping Mountain’s length, which was thick and heavy, straining against the air. "Absolutely absurd. Truly a waste of space."
Mountain let out a low, shaky groan, his hips twitching instinctively, but Omega pressed down harder, crushing the air from his lungs.
"What is the point of this, Mountain?" Omega sneered, his violet eyes flashing with a predatory glint. He squeezed the girth of Mountain's cock, not with affection, but with a mocking sort of curiosity. "It’s too big. Far too big. There isn't a soul in this Ministry—maybe not even in the Pit—who could take the full length of this useless thing without breaking."
Mountain tried to speak, a soft, rumbling sound of protest, but Omega cut him off, leaning down to nip sharply at the sensitive junction of Mountain's neck and shoulder.
"You’re a curiosity," Omega whispered against his skin. "All that size, all that masculine weight, and for what? You can't use it. You can't breed anyone with this monstrosity. It’s just... decoration."
Omega shifted, moving his weight to settle firmly between Mountain’s thick thighs, forcing them wide. The contrast was stark; where Mountain was stone and soil, Omega was refined quintessence and raw power.
"The only thing you're actually built for is taking," Omega continued, his tone dropping an octave, becoming an authoritative command. "You aren't a sire, Mountain. You're a vessel. All you're good for is being bred."
To emphasize the point, Omega guided himself forward. He was massive, his own length equipped with a prominent knot at the base that promised a total, inescapable filling. As he began to push inside, stretching Mountain’s tight heat, Omega watched Mountain’s face—the way his eyes clouded with a mixture of shame and desperate need.
"Forget about that useless thing between your legs," Omega groaned, his pace increasing, the bedframe creaking under their combined weight. "Just focus on how well you take me. Focus on the fact that you were made to be filled, not to fill."
Mountain let out a choked cry, his fingers curling into the sheets. Under Omega's oppressive weight and cruel tongue, he was nothing more than a place for Omega to leave his mark.
Omega leaned down, his chest pressing firmly against Mountain’s, pinning him further into the mattress. He gripped Mountain’s jaw, forcing the Earth ghoul to look him in the eyes.
"Do you feel it?" Omega rumbled, the vibration of his voice echoing in Mountain’s own throat. "Do you feel how perfectly you fit around me? Your body knows exactly what it's for. It doesn't want that useless cock of yours to do anything—it just wants this."
Mountain’s head thrashed from side to side, a guttural, broken sound escaping him. He was drowning in the sensation, his grounding nature completely eroded by the onslaught of Omega’s quintessence. He felt small, despite his size, diminished by the sheer authority in Omega’s touch.
"Answer me, Mountain," Omega commanded, his voice dropping to a dangerous, low hiss. He withdrew almost entirely, leaving Mountain aching and empty for a heartbeat, before slamming back in with a force that made the bed frame groan in protest. "What are you? Are you a breeder?"
Mountain gasped, his back arching, his thick thighs trembling violently. "N-no…" he whimpered, the admission tasting like defeat and desire.
"That's right," Omega purred, a cruel smile touching his lips. "You're just a hole. A big, greedy, useless hole."
Omega shifted his grip, sliding his hand down to wrap around Mountain’s own length, not to pleasure him, but to hold it still—to remind him that while he was being filled, his own organ remained a dormant, pointless weight. He squeezed it tight, mocking the girth of it.
"Look at it just hanging there," Omega mocked, his pace becoming frantic, his hips snapping forward with bruising intensity. "So much size, and yet you're the one shaking. You're the one begging for it. You're nothing but a broodmare in a demon's body."
The tension in the room reached a breaking point. Omega’s breath came in heavy, ragged heaves, his violet eyes glowing with an intensity that bordered on manic. He felt the build-up, the pressure at the base of his cock beginning to swell.
"I'm going to lock you in," Omega groaned, his voice cracking with the onset of his climax. "I'm going to knot you so deep you'll forget you ever had a dick of your own."
With one final, devastating thrust, Omega buried himself to the hilt. The knot at the base of his cock expanded rapidly, stretching Mountain’s entrance to its absolute limit, locking them together in a seamless, suffocating seal.
Mountain let out a loud, shattering cry, his eyes rolling back as the sheer fullness of the knot triggered a visceral, overwhelming reaction. He was completely claimed, pinned and plugged, unable to move an inch as Omega spent himself inside him in great, pulsing waves.
Omega collapsed onto him, his heavy chest heaving, his sweat-slicked skin clinging to Mountain’s. He didn't pull away; he stayed there, savoring the feeling of Mountain twitching beneath him, trapped and filled.
"There," Omega whispered, his voice returning to that soft, terrifyingly kind tone. "Now you're exactly where you belong. Just a vessel for me."