Destiel

Mark Of Cain

(I found this idea off Tumblr and added some on my own ideas into it. No clue who's idea it was)

Dean Winchester. You've probably heard of me. I'm a hunter and currently working with my brother Sam and an angel named Castiel. I've got something called the Mark Of Cain. It's a little symbol that likes to take control at times. Every once in a while I lose control and go on a killing spree. The first time it happened I was alone, away from Sam and Cas, and I killed everyone in a little diner. Ever since then Cas and Sam have kept a close watch on me. Most of the time all it takes is a bit of talking to get me out of that state, but there was once when I lost all control.

"Ow!" I complain quietly to myself.

"What's up?" Sam asks.

"Ugh, just this." I examine the mark that's been on my arm for a few months now. "Hey, where's Cas?" I'm used to him being there each morning to greet me when I woke up.

"He went out to go get food." Sam tells me. I'm still getting used to the fact that he's human now and has to actually sleep and eat.

"Hey, is something going on between you two?" Sam questions me. Cas and I usually stay apart because we don't want Sam to catch us, because I'm afraid of what he'll think.

I don't hear Sam's question and my mind begins to get cloudy. "Dean?" He looks at me funny, as I'm staring at the floor blankly.

I snap out of it and look at him. "Um, what?"

"Nothing.." He says. "Are you feeling OK?"

I nod. "I'm just tired." I get up to go get a beer and on my way there, I change. I know I'm losing consciousness from the mark.

I come back with the cup. Sam is facing away from me and I get the urge to attack him. I know this isn't me thinking, it's the mark.

"Hey, I think I found a case." He turns to start showing me his computer when I lunge at him. "Dean!" He says quickly. They'd found that saying my name helped bring me back, but this time it didn't work.

I pull out the knife I have a try to hit Sam with it.

"Dean stop, this isn't you!" He dodges the knife and tries to tackle me.

I grunt and pick myself up, going after him again. I get his arm and stand him up straight, pinning him against the wall behind him. "Dean, please!" Sam begs me.

I could have killed him but I resisted long enough for Cas to open the bunker door.

"Dean?" He sees the two of us fighting in the main room. "Dean stop!" He drops the bags he's holding and rushes over. He shoves me off of Sam and I fall to the floor. I'm quick to stand back up and face my attacker. I fast-walk towards him, wanting to kill him too. "Dean..." Cas tells me softly.

I bring up the sword, ready to strike. Cas realises he can't snap me out of this. He does something that he knew was sure to wake me up, and he was right. He leaned onto me and kissed me.

I begin to snap out of my rampage. I kiss him back, but stop when I taste blood. I pull away from Cas, first confused on the fact that he kissed me, and secondly on where all this blood was coming from. As I move back, I notice the sword is still in my hand. I look further to see the sword in Cas.

"No!" I yell. I rip the sword out of him and I hold him close, but it's too late. He's dead.