Here's chapter four. Took me so long to actually get into this, the idea of the conversation between Sam and Dean about this really freaked out. OK enjoy!

Dean sat in Sam's room staring at his little brother. It had been two days and Sam was still sedated. He couldn't bare looking at Sam's still form, the tube sticking out of his brother's mouth, he stood up and headed to the cafeteria to get a cup of caffeine.

When Dean returned Doctor Wood was waiting in Sam's room for him. She smiled at him and Dean released the breath he hadn't realised he was holding.

"Hello Dean. I've decided it's time to wake Sam up."

"Really?" Dean's eyes we're wide.

"Yes. It's been two days, and I feel that Sam's body should have recovered enough to be taken off sedation. All we have to do is remove this tube," She gestured at the needle in Sam's right hand, "We'll take out the ventilation tube and then stop the sedation. It won't take long for him to wake up." She turned around and Dean watched as she removed the needle from Sam's hand. "OK so I'll leave for now. Call for a nurse when he wakes up and they'll page me, and I'll check on him." She smiled and left. Dean called Bobby quickly and then took the seat beside Sam's bed.

Dean tapped his foot on the floor, each second ticking slowly by. Bobby arrived in 20 minutes and sat down next to him.

"Anything yet?" Bobby asked. Dean shook his head and looked back at Sam. Another 20 minutes passed before Sam's hand moved. Dean jumped up, and took the hand in his own.

"Sam?" He asked softly, "Sammy can you hear me?" A minute passed before Sam's eyes twitched open. "Sammy. Welcome back." He said with a genuine smile.

"What happened?" Sam asked closing his eyes again against the light.

"Urm, don't worry about that now, the doctor needs to check you out first. I'll just go tell a nurse you're awake." Dean left the room and paused outside the door taking a deep breath to steady himself. The thought of talking about this with Sam was tearing him apart inside. He took another breath then headed to the desk.

Bobby put his hand on Sam's shoulder, "Good to see ya awake boy. How ya feeling?"

"A bit groggy I guess." Replied Sam.

"OK" Bobby replied simply.

The door opening caught his attention and he looked up to see the doctor walk in followed by Dean.

"Hello Sam, I'm Doctor Wood. I've been handling your case. So tell me how your feeling." She said as she picked up Sam's chart at the end of the bed and checked all the machines for his vitals.

"I feel fine, a bit tired, but otherwise fine." Said Sam. The doctor pushed a button to raise the top of the bed so she and Sam would be able to talk eye to eye.

"Sam," the doctor started, "You're very lucky, you lost a lot of blood and we weren't sure how this would affect you. But we did some tests and they showed that you're fine."

Sam sighed in relief, happy that he was OK.

"Well I've got rounds to do, so I'll be back in a few hours to check on you."

"Thanks." Said Sam as the doctor left.

Dean took a deep breath and walked over to Bobby "Can you urm, give us some time to talk."

"Sure. I'll get some caffeine." He left Sam and Dean alone to talk.

"So Sam," Dean started.

"We need to talk?" Sam finished closing his eyes and leaning back.

"Yeah, I urm, worked out what you did." Dean said looking down at his feet, "Wasn't hard really, you had blood all around your mouth." Sam turned his head away. "Sam, why would you do this to yourself?" He said looking directly at Sam, "You could have died. What were you thinking?"

"I... My mind was all over the place in there, all I could think about was blood and it hit me that... That there's demon blood in me and I just couldn't stop thinking about it, eventually I broke the mirror and..." Tears slid down Sam's face, "I'm so sorry Dean."

"You can say that but you still did it!" Dean snapped, "The reason you were in there was for you to stop drinking blood and you just did it anyway! It's as if you're trying to hurt me!" Dean looked blankly at his brother, challenging him to deny it.

"It's not like that. I...It's an addiction, I can't help it."

"You can't help it? You started drinking it in the first place! You listened to that tramp Ruby and you believed her lies! So you started drinking this stuff that is killing you! Not just that, it's killing me to watch you! I just..." Dean fell into the chair beside Sam's bed, "I just don't understand how this all makes sense in your head. How you think that drinking this stuff is a good thing."

"Because I've seen it work for myself Dean. I drink this blood and it gives me power I've never had before! I'm stronger than I've ever been. I'm faster, better than I've ever been. Dean, I can exorcise demons without any Latin! How does this not make sense to you? I save the victim more times than not, and it's quicker and easier than all the Latin."

Dean pushed himself up quickly, "And what about you? I get that it saves people, but it won't save you. I've seen the nose bleeds you get when it's too much! And how weak you get afterwards. Even the way you twitch like a junkie when you haven't had your 'fix'. It's demon blood Sam. Demon. The things we've hunted our entire lives. They're evil, lying sons of bitches, but you're just so willing to trust one of them and drink her blood just because she says she isn't like the rest! It's crap Sam."

The room fell silent and seconds later Bobby came back with caffeine for himself and Dean, saying Sam shouldn't drink coffee when he's just woken up after being sedated. Bobby, not knowing what had gone on but not wanting to say the wrong thing, stayed quiet, so they sat in silence.

OK so what do you think? I was gonna continue but this chapter is much longer than the others so I decided to stop here. OK so thanks for reading! X