It all started when Castiel woke up early and Dean was still asleep, the musty motel smell surrounding them. The smell somehow settled like dust covering the roof of his mouth and made him comfortable all day but Dean had taught him the beauty of brushes. He had even gotten Castiel a toothbrush which resided with Dean's toothbrush in his duffel. It was pink and the base was a dragon.

Dean had laughed hysterically when he had handed Castiel the brush but the hilarity of the situation had flown past Castiel. Instead, he had leaned in and kissed the laughter right off of Dean's face. Dean had responded in kind, though surprised. He said Castiel never ceased to surprise him. Castiel loved that he could surprise Dean. Make those beautiful green eyes crinkle with laughter.

Dean was passionate. Castiel loved the way Dean could love. It was complete. When Dean looked Castiel in the eye, it was as if the whole world was right in front of him. As if all of Dean's prayers had been answered. It made Castiel want to hold Dean and sob, but he never did that. He kissed him if Sam wasn't there and if Sam was present, Castiel would give Dean the rendition of the same look. It made Dean's breath hitch.

Castiel loved the fact that even though his knees went jelly in front of Dean, he had the same effect on Dean as well. The way his eyes fluttered, his breath went uneven and he got that look of wonderment on his face. Castiel was sure, if not the same, he definitely mirrored it himself.

Castiel looked at the sleeping figure of Dean, his body curled towards Castiel. He ran a hand through his hair and kissed his forehead. Castiel stole a glance of the other bed, Sam was still asleep. They hadn't told Sam of their relationship. Dean found it uncomfortable, not that he was intimidated by his sexuality. It was far from that. It had just been five days since Castiel had returned from Purgatory. Dean had pulled him towards himself the second they had been alone. Between murmured confessions and apologies, he had kissed Castiel deeply and roughly. The night had passed in a haze of clothes and skin against skin. The next few nights had been slower, each of them wishing to remember, the quiet moans and the silent murmuring, not wishing to wake Sam up. Dean feared that Sam would feel left out, that either he'd go running back to Amelia or blame Dean.

Placing another kiss on Dean's forehead and 'mojo'-ing their clothes back on, Castiel swung his feet off the bed and headed towards the side table. He picked out his toothbrush, borrowed Dean's toothpaste and went into the bathroom to brush. Brushing his teeth, he thought he'd go find breakfast and scrounge around for information of any potential hunt.

He knew that Dean still feared Castiel would leave him. Deciding to leave a message, Castiel walked to sit at the edge of Dean's bed and picked up his phone. He had learnt to operate a phone with keys but this phone just had a screen. Was something wrong with it? No, couldn't be. He had seen Dean use it countless times. He turned it around in his hand. He found a button at the top. He clicked it hard, a screen appeared. It read, 'Slide to Unlock'. It took a few tries and once Castiel almost threw it, but he managed to get it open. It asked for a password. Frustrated, Castiel put the phone down. He was going to go old style on this one.

He unzipped Sam's duffel and fished through it to find a notepad and a pen. Racking his brains, he found perfect words at the top of his mind. Recently Sam had been drawn into poetry by a young poet, Christopher Poindexter. He spouted quotes wherever he could fit them. Curious, Castiel had read a couple of his poems and had ended up reading all of them. Being an angel had its perks, he could remember all the poems word for word.

He smiled softly as he penned it down.

Dean woke up groggily to the sound of Sam calling him to wake up.

"Bitch, just shower and then wake me up!" Dean cried out, tossing in the bed away from Sam's voice.

"Jerk," Sam called, walking to the bathroom and shutting the door.

Grumbling, Dean woke up. He opened his eyes and looked all around his bed. He sat up and looked around. Castiel was nowhere to be found.

"Hey, Sam! Where's Cas?" Dean asked, padding over to the door of the bathroom.

"I don't know! He was gone before I woke up," Sam told him, shouting over the sound of the water gushing. A beat later he added, more gently, "He'll come back, Dean."

"Yeah, yeah I know," Dean said, flippantly.

He shook a little on the balls of his feet and took a few calming breaths. Castiel wouldn't leave now. He had promised the night before, in bed. Dean thought he'd play with his phone for the time being.

Settling on the bed against a butt load of pillows, Dean settled between them and grabbed his phone from the bedside table. The plastic back cover felt a little out of place. He pulled it off to put it back again, securely but a folded piece of paper fell into his lap.

Curious, Dean picked it up and unfolded it. There, in Castiel's beautiful font, were the words:

"I have always

Been the sky

And you the

Sea, yet

It still feels

Like grace,

When you lay

Under me."

I will be back.

-Cas.