Febuwhump Day Six: Hypothermia. Dean is freezing in an old cabin with Cas. Cas offers to hold him with his wings. Smut ensues.

Title: When You're Stuck Out in the Cold

This piece is NSFW and I would like to keep my fic rated T. Please view it on AO3: /works/36941599

This is the first half:

Dean watched as the last weak flames of the fire dwindled before vanishing into nothing. He and Cas sat on the couch in front of the fireplace. He hugged himself and tried to rub warmth into his arms, his leather jacket feeble protection against the subzero weather. The cabin was poorly insulated and Dean watched the pure white snow as it pattered to the ground through the window. Cas watched him, face lined with worry.

"Wh-where the Hell is Sam?" Dean's teeth chattered. His nose and cheeks were growing numb from the cold. He pocketed his hands beneath his armpits and leaned into himself. The remote cabin was too far from town to venture traveling back in this weather, but if they stayed here, Dean would surely die from hypothermia.

"I don't know," Cas answered pointlessly.

Dean tried to stop himself from shivering, but his body vibrated in a sad attempt to maintain a living temperature.

"You're going to die if we stay here much longer," Cas said.

"Yeah, b-but we can't go anywhere and the place has been cleared out. I couldn't find a single blanket or a-anything," he set his jaw, frustrated with the stuttering. He tried to think of warm things. A Florida beach in the summer, hot chocolate in a mug that burnt his hands when he held it, under a mass of blankets with the heater blasting in his room. None of the images helped.

"I can help."

Dean raised an eyebrow.

"The cold doesn't affect me and I can put my wings around you for warmth."

"Put your wings around me? You wanna cuddle?" there was an undercut of sniping humor in Dean's voice, but it was only out of obligation. He was desperate for warmth.

Cas ignored him and wiggled closer. He placed an arm arounds Dean's back and Dean instinctively leaned in. It was true; Cas was completely impervious to the cold. He felt like a heater. He wrapped his other arm around Dean and Dean nuzzled into Cas's shoulder.

"Mmm," Dean let out a soft moan. He cringed as soon as it came out, but Cas offered no reaction.

Then they manifested, Cas's enormous angel wings. They were luminous and white, casting light in the dim room. Dean watched as they moved around him. It was strange at first, but not uncomfortable. The feathers tickled his ears as Cas's wings encased his body. They enveloped him from his head to his ankles, but awkwardly bent when they hit the floor, unable to wrap entirely around his feet.

They were soft as they brushed against his face. Dean pressed closer into Cas and he held his arms around Cas's waist, his head nestled into the crook of his neck. Slowly, the feeling returned to his body. He scrunched his toes inside his boots, still freezing without the protection of Cas's wings.

Dean didn't want to say anything. If he were to speak, the embarrassment of the intimacy might come, but the threat of frostbite was too real. "My feet, Cas."

"Lay down," Cas ordered and pushed Dean backwards. Dean fell to his back and Cas's powerful wings pulled his legs onto the sofa and folded around his boots. They were both fully encircled in Cas's wings. The small space quickly grew hot. Cas's body was pressed above Dean's. Their legs became entangled and they hugged each other close despite the fact it was no longer necessary. Dean hadn't been this close to Cas before. They had hugged, but never for more than a few seconds. Now that they were clutched in each other's arms, he didn't want to let go. He hoped Sam wouldn't come for hours. It was almost too hot in their sanctum now. He felt Cas's breath on his neck and his skin stood up. "Is this better?" Cas broke the silence and it almost spooked Dean.

"Yeah," Dean whispered, "I didn't know your wings could- I never really see them."

"Angels can choose when to use their wings," Cas explained.

"They're amazing," Dean blurted out. He reached out a hand and delicately ran his fingers down the velvety, white feathers.

It was Cas's turn to let a sigh escape. "Mm," he murmured in Dean's ear.

Dean could feel his face turning pink. "Does that feel good?"

"Yes. My wings are sensitive and I do not use them often. I can't remember the last time they were touched."

"Oh," Dean's hand hovered in front of the feathers. Slowly, he extended his fingers and stroked Cas's wings. He was fascinated with the texture, rubbing the quills between his fingers and feeling the cords that grew from them. Cas inhaled sharply and his body twitched. Dean's hand wandered closer to Cas, where his wings met his back, and the feathers became softer and more delicate.

"Dean," Cas's voice was breathy. Dean continued to pet him, fascinated with the small, fluffy feathers. Cas's wings trembled and the down shook beneath Dean's fingers.
"Cas," Dean murmured, "Say my name."

Cas squirmed. "Dean," he mumbled. He breathed heavily and unevenly through his mouth. Dean played with one one of the feathers, eliciting a whimper from Cas.