Backstory for this BL (Omegaverse) AU: Baron Nero and Madame Noir is the son and daughter of Marchioness Morc. Nero serves as the Dark Emperor's forever faithful second-in-command while Noir was arranged to be the Dark Emperor's lovely bride. Little does Baron Nero know, his mother and sister are using him as a pawn in their master plan to overthrow the Dark Emperor and take over the Shadow Line. During the wedding, Noir devoured the Dark Emperor and absorbed his powers to become the Dark Empress, much to Nero's horror and betrayal since he was extremely loyal to the Dark Emperor. If that wasn't bad enough, his own mother banished him from the Shadow Line. Now that her daughter is the new ruler of the Shadow Line, she has no use for a useless pawn of a son. The only one he has now (and has always truly cared about him) is the iron General Schwarz who is willing to give up his position in the Evil Shadow Line Army to be by his side.

Schwarz's Human Form: Dark skin, tall thick muscular body with battle scars, shiny yellow eyes, jet black hair with silver highlights, kingly beard that is the same color as his hair, wolf-like ears & tail, and wears the same clothes as his true form.

Nero's Human Form: White porcelain skin, slim masculine body, shiny red eyes, leather brown swept-back groomed hair with golden highlights, vampire-like fangs, wings of a raven, wore plague-doctor-mask-like gold-rimmed glasses (encrusted with crimson gems) with dark lens, elf-like ears, Victorian-Gothic-Style earrings, and wears the same clothes as his true form.

"Chapter One: The Runaway Lovers"

The air in the train station hung heavy with the scent of diesel and metal. The clock above the platform chimed, echoing through the cavernous space as the gleaming black locomotive pulled in, sending a plume of steam into the cold evening air. Among the shadowy figures waiting for the train's arrival was a man who stood out—his presence as stark as the stark contrast of his yellow eyes against his dark skin. General Schwarz, the legendary Black Iron General of the Evil Army Shadow Line, (in his human form) surveyed his surroundings with an intensity that seemed almost out of place amidst the mundane bustle of travelers.

Baron Nero, the Pitch-Black Baron, leaned heavily against the side of the train, his crimson eyes scanning the horizon with a sense of dread. He's also in his human form. The weight of his mother's and sister's betrayal pressed down on him like a mountain of lead. His top hat and Victorian attire fluttered in the breeze, the golden tip of his cane reflecting the dim light. The once-proud second-in-command of the Dark Emperor was now a fugitive in the very world he had once sought to conquer.

Schwarz approached Nero, his heavy boots clanking against the platform. The General's heart ached for his beloved Omega, and he longed to ease his pain. "Baron," he said, his German accent a gentle rumble in the tense silence, "we must board. We have a long journey ahead." He offered a rough gloved hand, his wolf-like ears on high alert while his wolf-like tail endlessly wagged with determination. Nero looked up, his expression a tumultuous mix of anger and sorrow, but he took Schwarz's hand, the warmth of the Alpha's touch grounding him.

As they settled into their private cabin, Schwarz removed Nero's hat and placed it aside with care. His eyes searched the Baron's face, noticing the new lines of stress etched into his porcelain skin. "You are not alone," he murmured, stroking the soft brown hair at Nero's temples. "I am here for you." Nero leaned into the touch, his shoulders relaxing slightly. The train jolted into motion, and outside the window, the world began to blur into a tapestry of darkness.

Their journey was fraught with tension. The Kuros, loyal to the new Dark Empress, were undoubtedly searching for them. Nero's mind raced with thoughts of his former life, the power he had held, and the future he had lost. In quiet moments, he would stare at his torn-gloved hands, marred by the scars of his attempts at escape from his own despair. Schwarz noticed and took one into his own, holding it firmly yet tenderly. "Your strength is not in your hands, Baron," he said, his voice a soothing bass. "It is in your heart."

The days turned into nights, and the rhythmic clacking of the train's wheels became a lullaby for their weary spirits. In the dim cabin light, Schwarz revealed his gentle side, cooking simple but hearty meals for Nero. The aroma of stew and freshly baked bread filled the small space, mingling with the scent of roses that seemed to cling to Nero's very being. The Baron watched with a mix of curiosity and admiration as Schwarz moved with surprising grace around the compact kitchenette, his muscular frame belying his deftness.

During their meals, they talked in hushed tones about their pasts, their hopes, and their fears. Nero spoke of his love for alchemy and how he had used his gifts to create medicines for the weaker members of the Shadow Line, hoping to bring some light to their shadowy lives. Schwarz listened intently, his eyes never leaving Nero's face, his expression a blend of pride and tenderness. He shared stories of his fascination with trains, how the power and efficiency of the iron beasts had always stirred something deep within him, a passion that had led him to serve the Dark Emperor with unwavering loyalty—until he met Nero.

One evening, as the train rattled through the countryside, the tension between them grew palpable. Nero's eyes strayed to the scar on Schwarz's cheek, a reminder of battles fought together. Without thinking, he reached out and traced the line with his fingertip, his gaze searching. Schwarz's breath hitched, and he turned to face Nero fully, his eyes darkening. "You...you truly care for me?" Nero whispered, the doubt in his voice a stark contrast to the certainty in his touch.

The Alpha leaned closer, the scent of roses from Nero's skin intoxicating. "More than you will ever know," he murmured, his voice thick with emotion. Before Nero could react, Schwarz captured his mouth in a fierce kiss, one hand cradling his jaw, the other resting protectively on his waist. Nero's eyes widened, but he didn't pull away. Instead, his hand curled into Schwarz's shirt, and he kissed back with a desperation that matched the General's own.

Their kiss grew deeper, more urgent, as the train hurtled through the night. The clank of the wheels and the sway of the cabin only served to heighten their senses. Nero's body responded to Schwarz's touch, his Omega instincts yearning for the Alpha's dominance. He had never allowed himself to be so vulnerable with anyone, but in that moment, he needed the comfort and protection Schwarz offered.

Schwarz gently pushed Nero onto the bed, his touch surprisingly gentle despite his brute strength. He pulled away just enough to remove his own shirt, revealing a chest that was a tapestry of scars and muscle. His skin was dark, a stark contrast to his black hair and the black beard that framed his face. Nero's eyes roamed over him, taking in the man who had been by his side through every battle, every victory, and now, every betrayal.

Their kisses grew more heated, hands exploring each other's bodies as if trying to memorize every inch. Schwarz's rough palms slid over Nero's pale white skin, his thumbs tracing the soft curves of his cheekbones. Nero's own hands trembled as they found the fastenings of Schwarz's military jacket, eager to feel the warmth beneath the cold, iron-like exterior. The fabric fell away, exposing broad shoulders and the silver chains that adorned his neck, a symbol of his rank in the Shadow Line.

Their breaths mingled as they broke apart, their chests rising and falling in unison. Schwarz's eyes searched Nero's, looking for any sign of hesitation. Finding none, he leaned in to whisper, "Do you trust me, Baron?" Nero nodded, his breathing ragged. "Good," Schwarz said with a gentle smile. "Because I'll always be here to catch you."

With that, Schwarz's hands moved to Nero's own shirt, his calloused fingers deftly unbuttoning it to reveal the Omega's slender frame. He kissed Nero's neck, his teeth grazing the soft skin, making Nero shiver with a mix of pleasure and fear. The Alpha's scent grew stronger, a heady blend of iron and masculine musk that sent a thrill down Nero's spine. He felt his own heat rise, his body responding in a way it never had before.

Schwarz's eyes never left Nero's as he slid the shirt from his shoulders, his gaze a mix of hunger and concern. He paused, his hands hovering over the Baron's chest. "If you wish me to stop," he said, his voice low and gruff, "you need only say so." Nero's heart pounded in his chest, but he nodded, his eyes never leaving Schwarz's. "I want this," he murmured, his voice barely above a whisper.

The General's eyes flared with a fiery passion as he leaned down to claim Nero's lips once more. His hands roamed over the smooth, pale skin, tracing the lines of Nero's collarbones and the sharp points of his hips. The Omega's own hands grew bolder, fumbling with the buckles of Schwarz's thick leather belt. As it fell away, the Alpha's pants followed, revealing the true power of his warrior's body. Nero's eyes widened, taking in the sheer size of Schwarz's arousal.

Their breaths grew ragged as they continued to explore each other. Schwarz's mouth traveled down Nero's chest, nipping and licking as he went, leaving a trail of heat in his wake. His teeth grazed over a sensitive peak, making Nero arch into the touch with a gasp. The Baron's eyes slipped shut, his body trembling with need. His wings flapping throughout this act of lovemaking while his vampire fangs glisten in the dim light of the cabin. He had never felt so alive, so wanted.

Nero's own hands were not idle. They slid over Schwarz's broad back, feeling the play of muscles beneath the warm skin. He traced the intricate tattoos that marked the Alpha's status as a member of the Shadow Line's elite. Each one was a story of battles fought and won, of loyalty and power. They spoke of a life Nero knew nothing about, and yet he felt connected to this man in a way he never had before. His fingers found the soft, dark hair at the base of Schwarz's neck, and he tugged gently, urging him closer.

Schwarz's mouth found Nero's neck, his teeth sinking into the tender flesh. Nero gasped, his body jolting with pleasure. He had never felt the bite of an Alpha before, but there was something about the pain that was intoxicating. It was a declaration of ownership, a promise of protection, and it sent a thrill through his veins that made his toes curl. He felt the heat of Schwarz's breath against his skin as the General licked the wound, soothing it with a gentle swipe of his tongue.

Nero's hands slid down to Schwarz's waist, his fingertips dancing along the firm abs before finding the buckle of his pants. With trembling hands, he undid them, revealing the General's thick, hard length. He couldn't help but stare, his cheeks flushing with a mix of embarrassment and desire. Schwarz took Nero's hand, guiding it to stroke him gently. "Like this," he murmured, his eyes never leaving Nero's. The Omega's eyes widened as he felt the Alpha's cock pulse under his touch.

The train's rhythm grew faster, matching the beat of their hearts as they lost themselves in the moment. Schwarz kissed Nero's neck, his teeth grazing the sensitive skin, leaving a trail of fire down to his collarbone. Nero arched his back, his breath hitching as the Alpha's teeth nipped at his earlobe. The heat between them was unbearable, their bodies slick with need. Schwarz's hand trailed down Nero's torso, his fingers dancing over the fabric of his pants, teasing the hardness beneath. Nero's eyes snapped open, his breath coming in gasps as the General's touch grew bolder.

Schwarz looked up, his yellow eyes locking onto Nero's red ones, the question in them unspoken. Nero nodded, his chest heaving with desire. The Alpha's hand deftly unbuckled Nero's belt, his movements sure and precise. He slid the pants down, revealing the Omega's bare skin. The sight of Nero's erection made Schwarz's own desire spike. He took Nero's length in his hand, stroking it gently, watching with a mix of awe and hunger as the Baron's body responded. Nero's eyes rolled back in his head, a soft moan escaping his lips.

The train car rocked gently with the motion of the train, adding a sensual rhythm to their exploration. Schwarz leaned in, taking Nero's earlobe between his teeth and tugging gently. Nero's hips bucked, his hands clutching at the bedclothes. The General's other hand slid down to cup the Omega's ass, squeezing and kneading the firm flesh. Nero's legs parted further, inviting Schwarz in. The Alpha took the invitation, two of his fingers sliding between Nero's cheeks to tease the tight opening. Nero tensed, then relaxed with a sigh as Schwarz's skilled touch found its way inside, preparing him for what was to come.

Their kisses grew messier, more desperate as their passion built. Nero could feel the warmth of Schwarz's hand as it worked inside him, stretching him open. He was lost in the sensation, his mind a haze of pleasure and pain, a symphony of sensation that drowned out the world beyond the cabin. He had never felt so exposed, so vulnerable, and yet so safe. Schwarz's fingers circled his entrance, dipping in and out, as his other hand stroked him in time with the motion of their hips.

With a growl, Schwarz broke the kiss, his teeth scraping Nero's jaw. He leaned over, his breath hot against Nero's skin. "I'm going to claim you, Baron," he rumbled, his voice thick with desire. "You're mine now." Nero's eyes fluttered shut, his body responding instinctively to the Alpha's dominance. He felt the pressure at his entrance, the blunt tip of Schwarz's cock pressing against him. He tensed, unsure of what to expect, but Schwarz was patient, his touch gentle as he eased into him.

Nero's breath caught as Schwarz entered, the sensation foreign yet exhilarating. The pain was there, but it was overshadowed by the warmth, the fullness, and the promise of belonging. Schwarz paused, giving him time to adjust, before he began to move. Slowly at first, his hips rocking in a steady rhythm that matched the pounding of Nero's heart. The Omega's body stretched to accommodate the Alpha, and with each thrust, the pain gave way to a building pleasure that had him arching into Schwarz's touch.

Nero's eyes remained closed; his head thrown back as he moaned softly. His body was a canvas of sensations, each touch from Schwarz a brushstroke of fire and ice. The Alpha's hands were everywhere, holding him down, stroking him, claiming him in a way that made Nero feel alive in a way he never had before. He could feel Schwarz's love for him in every movement, in every touch, in every gruff murmur of his name. It was overwhelming, terrifying, and absolutely perfect.

The train's rhythm grew more insistent, the clacking of the wheels a metronome to their lovemaking. Nero's breath grew ragged as Schwarz's strokes grew deeper, harder, more possessive. He could feel the Alpha's knot swelling, preparing to lock them together in the ultimate act of claiming. His body tightened, his muscles clenching around Schwarz's cock. The General groaned, his grip on Nero's hips tightening as he fought for control. "You're so tight," he murmured, his voice strained with effort. "So perfect."

The Omega's eyes flew open, meeting Schwarz's fiery gaze. He saw the love and determination there, and something within him broke. He wrapped his legs around the Alpha's waist, pulling him closer, begging for more. Schwarz took the hint, his hips snapping into a punishing rhythm that had Nero's moans echoing through the cabin. He could feel the knot approaching, the pressure building within him like a storm about to break.

The Alpha's thrusts grew erratic, his own climax close. He kissed Nero with a desperation that spoke of his fear of losing him. The Baron's body tightened around him, the warm embrace of his inner muscles urging Schwarz on. "Nero," he growled, his voice strained with need. "I need you."

Nero's eyes were wide with shock and pleasure as he felt the knot slide into place. The sensation was like nothing he had ever experienced—painful, yes, but also incredibly arousing. His body responded instinctively, his hips jerking upward to meet Schwarz's every thrust. The General's knot swelled further, filling him completely, and Nero's wing-breaking orgasm hit him like a freight train, his body shuddering with the force of it. He cried out, his nails digging into Schwarz's back as wave after wave of pleasure crashed over him.

The Alpha's own release followed, his hips stuttering as he filled Nero with his seed. His teeth sank into Nero's shoulder, marking him as his own, and the Omega's eyes rolled back in his head, a guttural moan torn from his throat. The bonding bite sent a rush of warmth through Nero's veins, the pain of the claim only serving to enhance the pleasure. They remained locked together, their breaths mingling in harsh pants, their hearts beating as one.

As their bodies slowly calmed, Schwarz withdrew his knot, his eyes never leaving Nero's. He pulled the Baron closer, holding him tightly against his chest. The warmth of his embrace was a stark contrast to the coldness of the world they had left behind. Nero nuzzled against him, his face buried in the crook of Schwarz's neck while his wings wrapped around the General in a loving embrace, his breathing even and steady.

The train's lullaby soothed them, the clack of the wheels a gentle reminder of the world outside their cabin. They lay entwined, their hearts beating together, as the night stretched on. The scent of roses filled the air, a sweet reminder of Nero's presence, and Schwarz breathed it in, feeling a sense of peace he hadn't felt in a long time. He stroked the Baron's hair, whispering reassurances in his ear, his German accent a comforting rumble.

Nero's eyes searched Schwarz's, a silent question lingering in their depths. The General leaned in, pressing a gentle kiss to his forehead. "You're safe with me," he murmured, his voice a warm caress. "Always." Nero's arms tightened around him, clinging to the Alpha who had become his rock. The weight of his past slipped away, replaced by the warmth and strength of Schwarz's embrace.

They lay in silence for a time, their breathing slowly evening out. The tension of their escape had left them both weary, but the comfort of their shared passion had brought a newfound peace. Nero's hand traced idly over Schwarz's chest, feeling the steady beat of his heart, the scars beneath his fingertips a map of battles won and lost. "Thank you," he whispered, his voice hoarse from the intensity of their union. Schwarz nodded as he wagged his tail with joy, his eyes shining with an emotion that was more precious than any victory.

…To Be Continued…