Chapter 10: The Morning After
The kiss deepened, a slow slide of warmth and promise, and for a blissful moment, Dean forgot everything. His world narrowed to the press of Cas’s mouth, the solid wall of his chest, the gentle scrape of stubble against his chin. His purr vibrated through both of them, a steady engine of contentment.
Then the first tremor hit.
It was a low, internal thrum, a sudden flush of heat that had nothing to do with arousal and everything to do with malfunction. A familiar, dreaded warmth began to pool low in his belly, sharp and insistent. A fresh trickle of slick dampened his underwear, undeniable and humiliating.
No.
He broke the kiss with a sharp gasp, stumbling back a step as if Cas had burned him. His hand flew to his own forehead. It was clammy, feverish.
“Dean?” Cas’s voice was rough with concern, his hands still outstretched.
“Fuck,” Dean breathed, the word dripping with panic. He shook his head, backing toward the kitchenette, putting the rickety table between them. “No, no, no. Not again. This is impossible.”
“What’s wrong?”
“What’s wrong?” Dean let out a hysterical little laugh. “You! You’re what’s wrong! Or I am. Or this… this thing between us is broken.” He gestured wildly between them. “My body can’t… it doesn’t do this. Heats are every three months. Like fucking clockwork. I just had one. I’m done for the season. But you walk in here, you kiss me, and my goddamn biology just… reboots.” He pressed the heel of his hand against his lower abdomen, as if he could physically shove the sensation back down. Another wave of feverish heat washed over him, making his knees feel weak. The scent in the room was shifting, his own citrus sharpness melting into something warmer, sweeter, undeniably ripe.
Cas took it in, his blue eyes widening slightly in understanding. He didn’t move closer. He stood still, letting Dean have the space. “Your body is responding to a compatible alpha,” he said, his voice low and calm. “It’s not broken. It’s… decisive.”
“It’s a pain in the ass!” Dean snapped, frustration boiling over. He was scared. Terrified. A heat was vulnerability. It was days of lost control, of primal need overwriting every scrap of his hard-won personality. The last one had been bad enough, endured alone in a sweat-soaked nightmare. To have Cas see him like that… to become a whimpering, clutching thing… “You should go.”
Cas didn’t blink. “I’m not leaving you.”
“You don’t get it!” Dean’s voice cracked. “This isn’t… it’s not fun. It’s not a sexy weekend. It’s a slog. Days. I get feverish, I ache everywhere, I’ll be… insatiable and then I’ll crash and be useless. I’ll be needy and gross and you’ll be stuck playing nursemaid to a hormonal mess. I’ve never… I’ve never done a heat with an alpha.” The admission was ripped from him, shame coating every word. “I don’t know how to do this. With someone else. With you.”
He expected Cas to look burdened. Resigned. Maybe even put-upon.
Cas’s expression did none of those things. It softened. A profound, gentle determination settled into the lines of his face. He slowly rounded the table, giving Dean every chance to bolt. When he was within arm’s reach, he stopped.
“I don’t care,” he said, each word measured and heavy with intent.
“You will.”
“I won’t.” Cas took that final step. He didn’t grab him. He simply opened his arms, an offer. “Dean. Let me look after you.”
The fight drained out of Dean all at once, leaving him trembling. The fever was rising, a discernible haze starting at the edges of his vision. His instincts, the ones he’d spent a lifetime cursing and suppressing, were screaming a different tune now. They weren’t screaming for solitude. They were screaming for the alpha in front of him—for his scent, his touch, his presence. The conflict was agony.
A small, pained sound escaped his throat. It was all the surrender Cas needed.
In one smooth motion, Cas bent and slid an arm behind Dean’s knees, the other around his back, and lifted him. Dean yelped, instinctively looping his arms around Cas’s neck. He was carried across the cluttered room like he weighed nothing, Cas’s strength effortlessly bypassing his feeble struggles.
“Put me down, you overbearing asshole,” Dean muttered, but he buried his face in Cas’s neck, breathing in the calming, clean-alpha scent. It soothed the jagged edges of his panic even as it stoked the fire in his gut.
“No,” Cas said simply, and laid him down on the tangled navy comforter.
Dean immediately tried to sit up, but Cas placed a firm, warm hand on his chest, pressing him back into the mattress. “Stay. Just for a minute.”
Cas then did something Dean didn’t expect. He stepped back and just… watched. His gaze was intent, but not intrusive. Curious. Dean, flushed and fidgeting, understood. The drive was upon him, an itch beneath his skin that demanded action. The nest.
It was the most basic, deeply ingrained omega instinct. To prepare a safe space.
With a grunt of effort, Dean pushed himself off the bed. His movements were already becoming less precise, more fluid, driven by need rather than thought. He ignored Cas and went to his closet, pulling out every soft thing he owned: a worn flannel shirt that had lost its scent, a few faded t-shirts, a blanket that was more hole than wool. He gathered them in his arms, the fabrics feeling intensely important.
He brought them to the bed and began arranging them, his hands trembling. He pushed the regular pillows into a semi-circle against the headboard, then layered the soft clothes and the extra blanket around them, patting and smoothing, building a fortified cocoon. He paused, sniffed the flannel shirt, and wrinkled his nose. It smelled of dust and closet. Wrong.
A low, frustrated whine built in his throat.
He felt Cas move away, heard the closet door open again. A moment later, Cas returned. He was holding Dean’s pillow—the one from his side of the bed, the one Cas had used the night before. Without a word, Cas offered it.
Dean snatched it from him, buried his face in it, and inhaled deeply. It was saturated. Cas’s scent, yes, but also their scents, intertwined from a night of sleep and sweat and sex. It was perfect. It was safety. He made a sound—a deep, chirring purr of pure satisfaction—and placed it reverently in the very center of the nest, arranging the other fabrics around it like offerings.
He climbed in, shifting and wriggling until the materials conformed to his body. He looked up. Cas was still standing there, watching him with an expression of such fond, raw tenderness that it made Dean’s breath catch.
“It’s a good nest,” Cas said, his voice hushed.
“Shut up,” Dean mumbled, but there was no heat in it. He was preening, and he knew it, and he couldn’t stop.
Cas smiled, a real one that crinkled the corners of his eyes. “I’m going to get some things. I’ll be right back. Don’t move.”
“Like I could,” Dean grumbled, already feeling the deep ache settling into his bones. The nest helped. It held the echo of Cas’s promise, a physical barrier against the world.
He listened to the sounds of Cas moving through his apartment. The creak of a cupboard. The rush of water from the tap. The rustle of plastic bags from under the sink. It was domestic. It was care. Dean squeezed his eyes shut, a sudden, hot prickling behind his eyelids. No one had ever done this. No one had ever seen the first tremors of his heat and moved toward him instead of running for the hills.
Cas returned, his arms laden. He set a large glass of water and a bottle of aspirin on the makeshift nightstand (an overturned milk crate). He had a cool, damp washcloth, which he folded and placed gently on Dean’s forehead. The relief was immediate, a shock of bliss against his fevered skin. Dean couldn’t stop a low moan.
“I know,” Cas murmured. He’d also brought a box of protein bars, a bag of plain pretzels, and an extra towel. He surveyed his haul, then looked at Dean, his head cocked. “What else? Tell me what you need. What makes it bearable?”
Dean licked his dry lips. The clinical question helped. “Uh. Electrolyte stuff. The powdered kind. It’s… it gets bad. Dehydration. Sometimes… sometimes the cramps are bad. Like, muscle cramps. Epsom salt for the bath, if there’s any. And… trash bags. For the, uh. The towels.”
Cas didn’t flinch. He just nodded, committing it to memory. “Okay. I’ll go to the store.”
Panic flared again. “No!” The word was out before he could stop it, sharp and desperate. “Don’t… don’t leave. Not yet.”
Cas immediately sat on the edge of the bed, careful not to disturb the nest’s perimeter. He took Dean’s hand, lacing their fingers together. His palm was cool and steady. “I’ll wait until you’re asleep. It’s just around the corner. Ten minutes. I’ll be faster than that.”
“It’s not that…” Dean struggled to articulate the primal dread. It was the fear of the alpha leaving the omega vulnerable. It was illogical, but in this state, it was truth. “Just… hurry.”
“I will.” Cas brushed the hair back from Dean’s damp forehead. “I’m going to make this the best heat you’ve ever been through.”
Dean let out a weak, shaky laugh. “The bar is on the floor, Cas. Sub-basement. Previously buried in a toxic waste dump.”
“Then we’ll raise it.” Cas leaned down and pressed a soft, chaste kiss to his lips. It was a pledge. “Sleep if you can. I’ll be here when you wake up.”
The washcloth, the hand holding his, the command in that gentle voice—it all conspired against him. The fever pulled him under into a fitful doze. He was vaguely aware of Cas extracting his hand, of the soft click of the apartment door, of the profound silence that followed.
It felt like an eternity.
But true to his word, Dean was jerked from a hazy, unpleasant dream by the sound of the door opening again maybe fifteen minutes later. His senses, now hypersensitive, exploded. Cas’s scent filled the apartment, fresh from the cold night air, layered with the sterile smell of a drugstore. Dean whimpered, pushing himself up on his elbows.
Cas locked the door, toeing off his shoes. He brought two bags to the kitchen counter and began unpacking with efficient movements. Dean watched, mesmerized, as Cas produced not just the requested items, but more: a bottle of the premium electrolyte mix, a box of fever-reducing gel pads, a new, incredibly soft-looking blanket still in its packaging, a bag of lemons, and a container of ginger tea.
“You went to the fancy market,” Dean slurred, his tongue thick.
“The bodega had suspect electrolytes,” Cas said, as if it was obvious. He filled the electric kettle and got it boiling. He found a clean-ish mug in Dean’s sink, rinsed it, and dropped a tea bag in. He moved through the alien landscape of Dean’s kitchen with a focused grace that was utterly captivating.
By the time Cas came back to the nest, Dean was trembling in earnest. The fever had spiked, a dry heat that made his skin feel two sizes too small. The deep, rhythmic ache in his core was intensifying, a hollow throb that demanded to be filled. Slick was soaking through his boxers, a constant, embarrassing seep.
Cas had changed into a soft, worn-looking grey t-shirt and sweats. He’d shed his lawyer skin entirely. This was just a man. An alpha. In his space.
He sat on the bed again, holding the mug of steaming tea. “Can you sit up a little? You need to drink.”
Dean tried. His muscles protested, weak and uncoordinated. With a soft sigh, Cas set the mug down, slid his arms under Dean, and effortlessly propped him up against the piled pillows, rearranging the nest around him. He held the mug to Dean’s lips. The tea was hot, sharp with ginger and lemon, and it soothed his raw throat.
“Small sips.”
Dean drank, his eyes locked on Cas’s face. The care was devastating. It made him want to cry and claw at him simultaneously.
When the mug was half empty, Cas set it aside. He reached for the new blanket, tore off the plastic, and shook it out. It was a pale cream color, impossibly plush. He draped it over Dean, tucking it around his shoulders. The softness was a sensory balm. Dean nuzzled into it, another purr rattling loose from his chest.
“Feel any better?” Cas asked, his hand coming up to cradle Dean’s jaw, his thumb stroking over the fever-hot skin.
“Hot,” Dean managed. “Everything… aches.”
“I know.” Cas’s gaze was dark with empathy. He reached for the box of gel pads, peeled one, and gently replaced the warm washcloth on Dean’s forehead with the cool, gelatinous sheet. The relief was so intense Dean sagged against the pillows, a long, shuddering sigh escaping him.
“There you go,” Cas whispered. He stayed there, perched on the edge of the bed, one hand resting on Dean’s chest, over his pounding heart. His touch was a grounding wire.
The heat came in waves. For a while, the cool pad and the tea held it at bay. Dean floated in a hazy, uncomfortable but manageable limbo. He watched Cas move around the apartment—tidying up the previous night’s dishes, filling a water pitcher, setting the trash bag and extra towels within easy reach. He was preparing for a siege. And he was doing it without complaint, without a trace of resentment.