Chapter Text
As the world crumbled into ash before their eyes, so too did Castiel’s life.
Lucifer walked the earth now, wearing the familiar face of Sam Winchester twisted into something unrecognizable. And Dean refused to be Michael’s vessel, a decision that will haunt him for the rest of his days. He clung to the belief that they could save Sam without surrendering to Michael, without either of them dying in the process. Castiel had believed in that too. Had believed in Dean.
But belief wasn’t enough.
The Croatoan virus spread like wildfire, turning humans into bloodthirsty husks. The angels abandoned Earth, their silence louder than anything. The demons thrived. The supernatural world, once hidden in shadow, grew bold and ravenous; humans were less on earth and the creatures began to starve. Survival became a miracle.
Castiel stayed.
Not because he thought they could win. But because Dean had asked him to. Because something in Dean’s voice, cracked and furious and so unbearably human, made him believe that staying mattered. So he fell for Dean, in more than one way. He gave up his grace. His wings. His voice that once sang creation into being. He took Jimmy Novak’s body not as a vessel, but as his own now. And with it came the slow, bewildering inevitability of humanity.
It started with hunger. Then exhaustion. Then the ache of loneliness that no prayer could soothe. And then, a couple months after his fall, Castiel presented as an omega.
It wasn’t a surprise. Not really. Jimmy had been one. And Castiel, now fully human, had no grace to shield him from it. He didn’t know what to do with it all. Dean didn’t either.
They were holed up in an abandoned church outside Oregon; the stained glass shattered, the pews burned. Dean was sharpening a machete, his jaw tight, his eyes hollow, sitting far away from Castiel, as his heat scent lingered all throughout the walls. Heat had hit him hard, sudden and brutal, halfway through a supply run. Now he was wrapped in a threadbare blanket, sprawled on the cold stone floor, chasing friction against it in quiet desperation.
He tried to be discreet. He ried to keep still. But his body betrayed him, trembling with need he didn’t understand, aching for touch he couldn’t ask for. They were waiting for rescue, as Castiel could not walk to the camp in this condition.
“You should’ve left,” Dean said, not looking up. “When the other angels did.”
“I am no longer loyal to heaven,” Castiel rasped. His voice was rough now, worn down by humanity. “I am loyal to you.”
Dean didn’t move toward him. Didn’t touch him. Not that night. Not in any of the heats that followed.
It was confusing at first. Terrifying, even. Castiel had no frame of reference for what was happening inside his own body. Angels didn’t have primary or secondary genders. They didn’t burn like this. He knew what was happening to him in theory; heats every six months, the hormonal cascade, the vulnerability, the craving for comfort and sex. But theory hadn’t prepared him for reality. For the fuzziness in his thoughts. For the way his skin felt too tight. For the need of being held down and fucked senseless.
And the pain. Oh god, the pain. Spending his heat alone was like burning from inside out.
He didn’t know how to ask for help. And Dean didn’t know how to offer it.
So from then on, Castiel endured. Quietly. Alone.
Long ago, there had been a few Omegas in the camp. They were kind, patient, and endlessly willing to explain what was happening to him, guiding him through the strange rhythms of his new body. They taught him how to manage a heat and how to keep himself safe. They took care of one another, too. In the beginning, they shared a cabin, staying close whenever one of them was in heat; bringing food and water, guarding the door against unwanted alphas, sometimes letting trusted ones in.
Never for Castiel, though. He never asked. He didn’t want to burden anyone with his heat. He didn’t want anyone who wasn’t Dean when he was in heat. And Dean didn’t want him, so Castiel wanted no one.
Still, the Omegas helped him. They sat with him when the fever was too much, whispered reassurance when he shook with confusion, pressed cool cloths to his skin when he couldn’t stop trembling. He grew fond of them, deeply. They were the closest thing to family he had since the angels left.
But one by one, they died.
Alphie was the first. He was gentle, always humming old lullabies when someone was hurting. He was taken during a supply run, cornered by Croatoan-infected humans. They found his body days later torn apart.
Garth followed. He had been stubborn, always insisting he could fight like any alpha. He tried to hold the barricade when a pack of werewolves broke into camp. He bought the others time, but the wolves dragged him into the dark, and he never came back.
Jo lasted longer. She was clever, quick with her hands, always the one to patch wounds and keep spirits high. But hunger made her reckless. She went out alone to hunt, desperate to bring back meat for the camp. A demon caught her; used her body to try to infiltrate the camp. Dean caught into it too quickly, and the exorcism was fatal for her.
And finally, there was Charlie. She was the one who had stayed closest to Castiel, the one who always sat with him through the worst of his heats. She died quietly, she got shot by a scared teen just trying to get food. Her wound got infected and fever burned her from the inside, no medicine left to save her. Castiel held her hand until it went limp.
After that, Castiel was the only Omega left.
He endured. Because there was no one else left to endure with him.
Now Castiel spent his heats entirely alone, shut away in a cabin far too large for a single person. The empty space pressed in on him, a constant reminder of the voices that used to fill it, the Omegas who had once laughed and comforted him, now gone. The silence was heavy, and every time the fever rose in his veins, it felt like the walls themselves accused him of surviving when they had not.
Chuck guarded the door when he was in heat. A beta, unaffected by the scent that clung to the air, he seemed almost fond of Castiel in his quiet way. Castiel was grateful for the simple act of someone standing watch, keeping the unwanted out. But gratitude did little to ease the guilt.
Because Castiel was the only Omega left. The only one. And every time his body betrayed him, every time heat dragged him down into weakness, the camp had to pause. Supplies went uncollected. Plans were delayed. Dean’s right hand was suddenly useless, locked away behind a door while the others waited for him to burn through it.
He hated it. Hated the way Dean’s jaw tightened after each cycle, the way his voice grew sharper, his temper shorter. Dean never said it outright, but Castiel could feel it, the irritation, the disappointment, the unspoken accusation that his biology was wasting precious time. That his weakness was costing them survival.
And so Castiel lay there, wrapped in blankets that smelled of ash, listening to the muffled sounds of life continuing outside without him. He pressed his face into the fabric, ashamed of the scent that marked him, ashamed of the need that made him a burden, ashamed of seeking pleasure while Dean was fuming outside. He was Dean’s second, his ally, his soldier, and yet every six months, he became nothing more than a distraction.
The pain in his wings never stopped, not even after falling.
It never left him. Even stripped of grace, Castiel could still feel the remnants of his wings, even as they remained in another plain of existence. Every second of being alive was agony, he would wake in the middle of the night with his spine burning, clawing at the skin between his shoulders as if he could tear the pain out with his own hands.
The doctors in camp called it chronic pain. They said it was something humans lived with, something that could be managed but never cured. Castiel thought it was a cruel joke, angels had never known pain like this, and now he was expected to endure it in silence, in the middle of the apocalypse.
They gave him pills. Small, bitter things meant to dull the ache. At first, he resisted. He told himself he could bear it, that suffering was part of being human, part of the price he had chosen to pay. But the pain was relentless. It gnawed at him, wore him down, made every breath feel like punishment.
So he swallowed one.
The relief was immediate, a blessed quiet in the place where his wings used to be. For the first time since falling, he could stand without trembling, speak without gritting his teeth. He could almost forget the phantom ache. Almost.
But the pain always came back. And when it did, he reached for the pills again.
Soon, he wasn’t waiting for the pain to rise before taking them. He was swallowing them preemptively, chasing the numbness. He told himself it was necessary, that Dean needed him sharp, that the camp needed him functional. That it wasn’t indulgence, it was survival.
But deep down, Castiel knew. He knew the pills had become more than medicine. They were an escape. They were the only thing that made the weight of his broken body bearable.
One night, during a scavenging run, they broke into a half-collapsed house on the outskirts of the city. The cupboards were bare, the furniture rotted, but in the back of a drawer Castiel found a small bag of white powder. He knew what it was. He had seen humans use it before. Cocaine.
He tried it.
And for a few hours, lying on the floor of his cabin, he felt like an angel again. The phantom pain in his wings dulled into something almost beautiful. He could close his eyes and imagine himself soaring, feathers spread wide, flying through the sky beside his brothers as if the Fall had never happened. The rush was intoxicating, not just in his body but in his memory. It was the closest he had come to grace since losing it.
He ached for that feeling.
After that night, every drug he could get his hands on became a doorway back to the sky. Pills, weed, anything scavenged from ruined pharmacies or abandoned homes, he chased them all, desperate.
Dean noticed. Of course he did. Castiel could see it in the way Dean’s eyes narrowed, the way he was annoyed whenever Cas reeked of weed. He hated himself for it. Hated the pity he could see in Dean’s eyes.
Sex was another doorway, another distraction. Outside of his heat, it wasn’t intimacy, not really, it was just a way to feel good, to forget for a while. In the camp, everyone was desperate for scraps of satisfaction, for closeness that could remind them they were still human.
Castiel had the privilege of a cabin to himself, and that meant he could take whoever he wanted inside; alphas, betas, men, women. He discovered quickly that his desire leaned toward men, but he didn’t deny himself the fleeting pleasure of variety. A girl riding him while he sucked on an alpha’s knot felt good enough, even if it wasn’t what he craved most. And he was so high most nights that he barely knew who was touching him. He would blink and find someone different on him: an alpha girl sucking his cock, then a beta man fucking his thighs, then another alpha man eating him out. It blurred together into sensation, into the simple fact that it felt good.
Still, there were limits. He never let an alpha knot him; the thought of pregnancy in the middle of the apocalypse was a nightmare he refused to risk. The few condoms scavenged from supply runs he saved carefully, using them only when certain alphas he trusted were in rut and needed relief. It was practical, transactional, a way to help them and himself at once. Nothing more.
Months earlier, on a supply run, another kind of pain had marked him.
They had been scavenging through the ruins of a small town when rogue humans ambushed them. Desperate men with rifles, willing to kill for scraps. Castiel remembered the crack of the gunshot, the sudden burn in his neck, the way the world tilted as blood poured down his chest.
The bullet hadn’t killed him, but it brushed against his scent gland. He could still feel the moment it ruptured, the sharp agony that stole his breath and left him clutching at his throat. His scent collapsed into nothing but the metallic tang of blood, and he knew instantly that something vital had been destroyed.
Dean had been there. He’d dragged Castiel behind cover, pressed his hand hard against the wound, shouting at him to stay awake. Castiel remembered the fury in Dean’s voice, the way his eyes blazed as he fired back at the rogues, the way he refused to let him slip away.
They made it back to camp, but the damage was permanent. The doctors stitched the wound, stopped the bleeding, but they couldn’t restore what had been lost. Castiel’s scent never vanished completely, after some time it returned, faint and dulled, so subtle that only he could catch it, or someone standing unbearably close.
He grieved that loss, because he had always liked his scent, sweet and warm like honey, a quiet reminder of who he was. But there was relief in it too. Outside of his heats, he smelled almost like a beta, and people treated him more seriously for it. No one hovered, no one dismissed him as fragile. His scent had become a ghost of itself, and though it hurt to lose that part of his identity, it also freed him from the weight of being seen only as an omega.
Castiel had learned to live with it all. This was his life now, Dean’s right hand man in the apocalypse. He needed to be strong.
This time, they were out with a few men from the camp. Two stayed behind in the car, keeping watch, while Castiel and Chuck pushed open the rusted doors of an old abandoned supermarket. The air inside was stale, heavy with dust and the faint tang of mold. Shelves leaned crooked, half-collapsed, their contents long since picked clean.
Castiel moved slowly down one aisle, his trench coat brushing against the metal racks as he scanned for anything edible. He muttered, almost to himself,
“I don’t know why Dean keeps sending us to these places. Everything’s gone by now.”
Chuck, walking a few steps behind with a flashlight, chuckled.
“I think he’s just tired of rabbit and deer meat.”
Castiel paused, pulling a dented can from the shelf and turning it in his hands. The label was faded, but it looked like beans. He glanced back at Chuck, the corner of his mouth twitching.
“Who isn’t?”
Chuck laughed again, the sound echoing faintly in the empty store.
“You know, I’d kill for something simple. Spaghetti. Even instant noodles. Anything that tastes like processed food. Not our natural clean recently hunted bullshit.”
Castiel placed the can in his bag, nodding.
“I used to think food was just fuel. Now I understand why humans care so much about taste.”
They walked together in silence for a moment, their boots crunching on broken glass. Chuck swung the flashlight toward another shelf, spotting a few cans stacked behind fallen boxes.
“Hey, jackpot,” he said, pulling them free. “Corn. Not glamorous, but better than nothing.”
Castiel joined him, helping to clear the debris.
“Dean will be pleased. He pretends he doesn’t care, but I’ve seen the way his face changes when we bring back something different.”
Chuck smirked. “Yeah, he’ll act like it’s no big deal, then eat half the can himself.” Castiel allowed himself a small smile.
“No, I think he’ll stare at it with pure longing but give it to someone else. He is not good at wanting things.” Chuck chuckles and nods. He dropped a can into the bag with a clatter, sweeping his flashlight across the aisle.
“You ever notice how these places feel like museums now? Shelves full of relics nobody wants.”
Castiel tilted his head, running his fingers along the dust-coated metal.
“Museums usually preserve things worth remembering. This is more like a graveyard.”
Chuck gave a short laugh.
“Fair point. Still, I half expect to see a tour guide pop out and start explaining the history of canned beans.”
Castiel’s mouth curved faintly.
“I doubt anyone would pay admission.”
Chuck grinned. “You’d be surprised. People will pay for anything if it makes them feel normal.”
Castiel glanced at him, a flicker of amusement in his eyes.
“Normal is a luxury we can’t afford.”
That’s when the world tilted beneath him. His hand shot out, gripping the edge of a shelf to steady himself, but the metal rattled under his weight. A wave of dizziness crashed over him, sharp and disorienting. His vision blurred, the labels on the cans swimming into nonsense.
“Cas?” Chuck’s voice lost its humor instantly. He stepped forward, flashlight beam jerking across the aisle.
Castiel tried to breathe, tried to shake it off, but his knees buckled. He clutched at the shelf, fingers slipping, and then he was falling. The crash of old expired food scattering across the floor echoed as he hit the ground.
“Cas!” Chuck dropped the bag, rushing to his side. He knelt, hands hovering uncertainly before pressing against Castiel’s shoulder. Castiel’s eyes fluttered, unfocused, his lips parting in a weak groan before his body went slack.
He doesn’t remember much after that. Just fragments; the brave memory of being carried back to the car, too out of it to really know by who. Dean’s voice shouting, sharp with panic, demanding answers the moment they returned. Chuck trying to explain, but the words were muffled, distant. A hand pressed to his forehead, Dean’s hand, and for a fleeting second he wanted to lean into it, but it was gone as quickly as it came. Then more shouting: He’s burning up!
He drifted in and out of consciousness for nearly a week.
Sometimes he woke to the sound of footsteps, the creak of the cabin door opening, someone slipping in to check on him. He would moan, half-delirious, clutching at his stomach or his throat, begging for his pills. But they never gave him anything stronger than antipyretic, never the relief he craved.
His body burned, drenched in sweat, trembling as though caught in a heat, but it felt all wrong. There was no desire, no slick and no need to be knotted down, only wracking shudders and agony that left him curled on the mattress, whimpering until exhaustion dragged him under again.
He was aware of hands pressing cool cloths to his forehead, of water being coaxed past his lips, of blankets being shifted when he thrashed.
Finally, after what felt like an eternity, the fever broke enough that he could think. His skin was still hot, but not scalding; his breath came easier, though his limbs were weak. When his eyes opened this time, the camp doctor was there, sitting beside the bed with a cup of water ready.
“Drink,” the doctor said softly, steadying the cup as Castiel lifted it with trembling hands. He swallowed, the coolness easing his throat. A plate sat nearby, canned beans, the ones he himself had brought back from the supermarket. He managed a few bites before setting the spoon down, exhausted.
The doctor let out a long breath.
“It’s a relief you woke up. You’ve been out for almost a week. Wouldn’t eat or drink for the last day.” Castiel frowned, voice hoarse.
“What’s wrong with me? Is it… an infection?”
The doctor shook his head, his expression grave.
“It’s hard to be certain without proper tests or equipment. But given your symptoms, I’m fairly sure you’re dealing with heatlock syndrome.”
Castiel blinked, confusion flickering across his face. The doctor continued, his tone calm but heavy.
“It’s rare. A condition where the body enters a prolonged, unresolvable state of heat. Instead of cycling through normally, it traps you there. You should have ended your cycle days ago, especially with the meds we gave you. Dean insisted on using the last heatblockers we had on camp, but they didn’t work.”
Castiel’s gaze dropped, guilt twisting in his chest. He knew those pills had been reserved for their final strike against Lucifer, meant to ensure no interruptions during the mission. Now they were gone, wasted because of him. He felt like a burden, stealing resources that should have been used to save the world.
“Normally, heatlock isn’t fatal. It was treated with a short hospital stay and a course of specialized medication. A few pills, some monitoring, and the body would reset. But we don’t have those pills anymore. And without them, the condition becomes unpredictable.”
Castiel’s brow furrowed, his voice hoarse. “Unpredictable?”
The doctor nodded.
“Sometimes the body resolves on its own, but most times it doesn’t. It drags on, burning through you until…Death. The only traditional treatment is pairing and fulfilling the heat with a compatible alpha, but even that isn’t guaranteed. It can work, but it can also fail. Without the medicine, it’s a gamble.” The doctor sighed. “Dean already sent groups out to abandoned pharmacies and hospitals, searching for the pills. He’s trying to save you.”
Castiel tried to sit up, panic flashing in his eyes, but the effort made him dizzy. He collapsed back against the mattress, breath ragged.
“No… no, it’s too dangerous. Those places are in the cities. They’ll get killed. Tell them to come back.”
The doctor placed a steadying hand on his shoulder.
“Dean sent the best soldiers. He trusts them to make it back.”
Castiel shook his head again, desperation in his voice.
“No. If they come back empty-handed, then… then tell Dean not to send more”
“But Castiel, you must understand. You are too weak right now, your fever barely broke. I am afraid this is not a come and go thing.”
“We’ll see. Prayers are in order.” Cas joked.
“We should consider the more traditional option if they can’t find anything.” Castiel frowned at the doctor’s words.
”I won’t take an alpha’s knot.” His chest hitched with a cough, his voice breaking. “I just won’t.”
“You can’t possibly believe Dean will let you die like this.”
“He has left other survivors to die. He can do the same with me.”
“You are naive if you think Dean would allow it.” Still, the doctor sighed and got up. “I’ll talk to him.” And with that, he left the room.
The missions came back empty-handed. Each group Dean sent returned with nothing but bruises, blood, and fewer men than they had left with. Castiel begged Dean not to send anyone else, his voice hoarse, his body trembling with fever. But he knew his pleas fell on deaf ears.
Dean’s silence was enough.
The fever never left him. Day after day, his body burned, sweat soaking the sheets, his strength draining until even sitting up was impossible. He was dying, and everyone could see it.
Some of the alphas in camp, men he trusted, men he had been intimate with came to him, trying to convince him to take the traditional option. But Castiel refused every time. He shook his head, whispered “no,” even when his voice broke, even when his body begged for relief.
Eventually, delirium took him.
The fever pulled him under again, and when his eyes opened, he was no longer in the cabin. His wings stretched wide behind him, whole and radiant, feathers shimmering like they had in the days before he fell. For a moment, he felt weightless, as though the agony of his human body had never existed.
Around him stood his brothers. Gabriel leaned against a marble column, smirking with that familiar mischief. Balthazar swirled a goblet of wine that glowed like liquid gold. Anna stood close, her wings brushing against his in quiet solidarity.
“Look at you,” Gabriel said, eyes gleaming. “Back in feathers. Almost like the old days.”
Castiel’s voice trembled, but there was a faint smile on his lips.
“I had forgotten what it felt like. I miss them more than anything.”
Balthazar raised his goblet in salute.
“Oh yeah, I remember how you wanted to be in the sky every given moment, even on your first mission. The patrols over Babylon, remember? You always took it too seriously. I was just there for the view.”
Anna laughed softly.
“And Gabriel would vanish halfway through, only to reappear with some ridiculous new animal.”
Gabriel grinned wider. “Hey, someone had to keep eternity interesting. You were all too stiff.”
Castiel’s wings shifted, feathers trembling with memory.
“I remember the hymns. The way the host sang in unison. It felt… endless. Like we were part of something greater than ourselves.”
Anna’s gaze softened. “We were.”
Balthazar sighed, swirling his wine.
“Before god left and the orders came. Just flight, song, and light. You were happiest then, Cas. You should hold onto that.”
Castiel closed his eyes, the warmth of their voices wrapping around him. He could almost hear the chorus of angels again, the harmony that had once filled the heavens. His fevered body shook, but in the vision, he was whole, wings spread wide, surrounded by family.
For a fleeting moment, he believed he was back in those days. But deep down he knew it was all his very human mind’s work.
The fever dragged him back to waking. He knew someone was speaking to him, maybe the doctor, maybe Dean, but the words blurred, muffled by the pounding in his head. His eyes fluttered open, and suddenly he wasn’t in the cabin anymore.
He was in the Impala. The leather seats were warm beneath him, the hum of the engine steady, and a soft song played on the radio. Dean was at the wheel, younger, lighter, smiling in a way Castiel hadn’t seen in years. His voice carried with the music, low and rough, singing along without shame.
Castiel turned his head, watching him. He knew this wasn’t real. Dean didn’t smile like this anymore. Not in the world they lived in now. But here, in the fever’s haze, Dean’s grin was wide and easy, his eyes bright.
Dean glanced at him, still singing, then chuckled.
“Hey, Cas… you ever danced to this song?”
Castiel blinked, startled, and shook his head.
“I haven’t had the chance.”
Dean’s grin widened, boyish and mischievous. He pulled the car over, parked on the side of some nameless road, and cranked the volume up until the music filled the night.
“Then come on,” he said, stepping out and holding a hand toward him.
Castiel followed, the gravel crunching under his boots. The headlights lit the empty road, the song spilling into the air, and Dean pulled him close. They swayed together, soft and unhurried, the world reduced to music and touch.
Castiel looked at him, at this Dean who laughed, who smiled, who carried none of the weight of the apocalypse, and his chest ached with pure love. He knew it was fake, a fever dream conjured by his desperate mind. But for a moment, he let himself believe.
Castiel coughed, weak and trembling as he came to his senses. His chest rattled with each breath. A cup pressed against his lips as soon as the coughing subsided, cool water spilling into his mouth. He drank slowly, but his grip faltered, and the cup slipped, droplets running down his chin and soaking into the collar of his shirt. A hand steadied it, firm but shaking.
When he turned his head, Dean was there. His eyes were bloodshot, ringed with exhaustion, his hair sticking up in uneven tufts as though he’d been dragging his hands through it for hours. His face was pale, jaw tight, and there was a hollowness in him that Castiel hadn’t seen before, the look of a man who hadn’t slept, who hadn’t stopped worrying.
“Hello, Dean,” Castiel whispered, faintly smiling despite the weakness in his body. He remembered the hallucination of dancing in the Impala, the warmth of Dean’s grin in that dream. He loved that vision, but he loved the real Dean more, even broken, even worn down like this.
Dean’s voice came rough, almost breaking.
“You’re dying.”
Castiel hummed softly, resigned, his lips curving faintly.
“I think I overstayed my welcome in this world.” His tone was gentle, almost teasing, but beneath it lay the weight of truth.
Dean shook his head violently, his hands tightening around the cup as though he could anchor Castiel to life by sheer force.
“You can’t die, Cas.” His voice cracked, the words more plea than denial.
“I very much can,” Castiel said, his tone calm, even as his body trembled. “In fact, I am dying.”
The silence that followed was suffocating. Dean’s jaw clenched, his throat working as though he wanted to speak but couldn’t. His eyes stayed locked on Castiel, green and raw, filled with something between fury and grief. Finally, Dean muttered, his voice low and strained,
“There’s still a group out there, searching for the pills. But… they won’t be back until next week.”
Castiel’s gaze softened, studying him. He could see the cracks in Dean’s armor, the way his shoulders sagged under the weight of hope he didn’t believe in. He wondered what storm was raging behind those eyes; fear of losing him? guilt for sending others to their deaths? the unbearable thought of being left alone?
Castiel closed his eyes, breath shallow.
“I don’t think I’ll make it that long.”
Dean froze, staring at him as though the words had carved straight through his chest. Dean swallowed hard, his throat working.
“We still got an option left.”
Castiel coughed, shaking his head weakly.
“No. I don’t want it.”
“Please, Cas,” Dean whispered, his voice cracking like glass.
“No,” Castiel rasped, his breath shallow. “I don’t want an alpha.”
Suddenly Dean grabbed his hands, clutching them tight, his own trembling. His grip was desperate, almost painful.
“Let me help you. Please. I can’t lose you. I just can’t. You’re everything I have left. I can’t go on without you.” His voice broke, tears spilling down his face as he dropped to his knees beside the bed. Castiel’s vision blurred, but he could still see Dean’s forehead pressed against his hands, the way his shoulders shook with sobs. Dean’s voice was raw, stripped of all the bravado he usually carried. “Cas, listen to me,” he begged, words tumbling out in a rush. “It doesn’t have to be me if you don’t want that. We can find someone else. Any alpha you want. Everyone here wants to save you. They’d do anything, we’ve lost so many people already… I can’t lose you too. Not you.”
His tears soaked into Castiel’s skin, hot and relentless. Dean clung to him like a drowning man, his body shaking with grief he couldn’t contain.
“Please, Cas,” he whispered again, voice breaking into a sob. “Don’t make me watch you die. Don’t leave me. I need you.” Dean’s words spilled out like a confession, unguarded and desperate. “Please… please. I have lost so many people. I don’t know what may become of me if I lose you too.” He pressed his face into Castiel’s hands, his tears soaking them, his voice hoarse and trembling. “I’ll beg if I have to. I’ll get down on my knees every damn day if it means you’ll stay. Just don’t go. Don’t leave me alone in this world.”
Castiel simply looked at Dean, his fevered eyes tracing the desperation carved into every line of his face. His lips trembled, and in a voice barely more than a breath.
“I don’t want to die.” Cas whispered.
Dean’s grip on his hands tightened instantly, his whole body leaning forward as if those words had cracked him open.
“Then let me try,” he pleaded, voice raw. “Please, Cas. Let me knot you. Please. Let me help. I’ll be good, Cas, I swear. I’ll take care of you. I’ll do it right. Just let me save you.“ words tumbled out, frantic and unguarded. “I’ll be gentle. Please, Cas, don’t push me away. I can’t lose you.” His eyes shone with tears, his voice breaking into a sob. “Let me try.”
Castiel kept his gaze fixed on Dean. Slowly, his fingers curled around Dean’s, weak but deliberate.
“Alright.” Cas said. Dean’s head snapped up, eyes wide, disbelief and relief crashing together. Castiel gave the smallest nod, his voice breaking but resolute. “I accept.”
Dean’s tears spilled freely, his hands clutching Castiel’s as if he’d never let go again.