this has some sin, but not necessarily between the two if ya know what i mean...
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Dean

The television reflected blue off of Cas' sleeping face, his head resting in the crook of my shoulder and his body under two blankets that he refused to let me use before he passed out watching re-runs of Friends.

I smiled at his squished cheeks, his lips plump and pressed together as he let out soft snores. I closed my eyes and leaned back into the couch with a sigh, memories from earlier sending warmth down my body.

Its not like i wanted to think about his lips or fingers running all over me. How he would groan slightly when i tugged him closer to me, a faint blush against his cheeks. I wasn't thinking of it in a bad way at first, just recalling the actual best day of my life. But like always, my thoughts drifted.

I bit my lip and opened one eye to make sure Cas wasn't awake as i darted my eyes to see a problem starting down south. I sighed and slowly got up, holding my breath as he shifted slightly against my shoulder with a whine. "Ill be back okay? I have to pee." I chuckled slightly and he nodded, slowly sinking to his side as i stood up.

I made a b-line down the hall and to my room, the only source of light was my lamp, which surfaced the mood greatly. I shut the door silently behind me with a breath of relief, swallowing thickly as i walked to my bathroom, a hint of nervousness in my eyes when i opened and shut the door behind me, turning on the lights and locking it shortly after.

Its not like its the first time I've got off to someone, but now it just felt weird. Shit i wasn't even dating him and he's already making my life harder- literally.

I walked to the toilet, lifting the lid quietly as i glanced back at the door to make sure i locked it again before bringing my eyes back to my problem. I tugged my joggers down and let out a huge sigh of relief once the warm bathroom surrounded my member. I bit my lip and looked down to see i was already leaking down my shaft, my thoughts from earlier apparently getting the best of me.

I closed my eyes and took hold of myself, groaning slightly as the images flashed left and right in my head. Castiel roaming his hands across my body as he kissed me deeply, his tan fingers tracing down my hips. "Cas-" I covered my mouth and sighed as i ran my hand up and down, making sure to get this done quick before i was questioned by the person who was causing this in the first place.

I hunched over and shook as i pumped faster, my mouth gawking open as i choked on a moan. His beautiful face scrunched up as i grinded against him, mouth blabbering for me to keep going as he groaned beneath me. "Fuck, Cas..." I whined softly and leaned my head back as i went faster, my thighs clenching at the thought of him with me. How his nails would tear down my back as he arched into me, shouting my name loudly over and over until he came hard, face blushed red as his body shook from pleasure. "Cas,Oh,Cas" I bit my lip and covered my mouth again, this time bitting down as i felt my stomach tighten and back arch into my grip. I moaned and came into my hand, breathing heavily as everything dripped down into the toilet beneath me.

I opened my eyes and took a moment before i pulled up my sweats. I cant believe i just did that i thought to myself as i quickly washed my hands and flushed the toilet, chewing on my lip as i unlocked the door and left the intimate room.

I breathed out loudly, running my hands through my hair slowly as i processed everything that just happened. I batted my lashes and watched as the fan in my room spun madly in the center. I took a breath and  walked to the door, exiting swiftly and making my way out the hallway, my whole body hitching when i saw Cas aimlessly walking towards my room. "The couch got uncomfortable," He smiled faintly. "Lets sleep in your room."

He grabbed my wrist softly and I stumbled back into the room, smiling when i watched him let go of me to throw himself onto the bed with a loud sigh. "Soft bed." He murmured into the duvet as i chuckled and shook my head in disbelief.

I crawled up next to him and he wrapped his arms around me, pulling me close as i lifted the duvet over us. "Cas?" "Hmm?" "Can i get a kiss..?" I blushed slightly at how needy i was, but when he grinned and opened his bright blue eyes, i felt better instantly. His fingers curled into my shirt and he placed a gentle kiss on my lips, resting his head in my neck shortly after.

It was silent for a moment, the only sound was the fan or the drifting of passing motorcycles in the distance. "Hey, Cas?" I asked softer this time, wanting to get just get it over with since my body was so tired from... activities that happened earlier. "Yeah, Dean?"

"I just really like kissing you."