What if Sam wasn't immune?
After getting off the phone with Lisa, Dean walked up to the house Sam had asked him to meet him at. After that phone call with Lisa he thought he could handle any truth. At least he hoped he could.
"Hey," Sam said as he came out just as Dean was about to go in.
"Hey, I have something to ask you and you're going to tell me the truth."
Sam looked at him puzzled, then he understood. "Are you?" he asked, wondering if he had fallen under this truth hearing curse. If so, this was going to be bad. He had been hiding so much from Dean.
"Yep." Dean took a deep breath. He wanted to know, but he was so afraid of the answer. "Why did you let me get turned into a vampire?"
"Because Samuel and I had been trying to catch the alpha vampire and I figured if we had someone on the inside it would go a lot easier. I knew there was a cure, but it wouldn't really have mattered if there wasn't. You're expendable."
"What?" Dean asked.
"I don't care about you, Dean. Not really. You're useful at times and all things considered, I'd rather have you for me than against me, but live or die, it doesn't matter much to me."
"How long have you felt this way?" Dean asked, wondering if it went back their entire life.
"Since I got back from Hell. I think I cared about you before then, but I can't really remember."
Well, Dean was glad to hear that it wasn't their whole life at least. Something had obviously happened in Hell. Maybe this wasn't even Sam. "Are you Sam?"
"Of course, I'm Sam. Who else would I be? Dean, sometimes I think you're really stupid and wonder how you manage to even survive."
"What's wrong with you?" Dean asked. This was not his brother. Not the one he sold his soul for. Not the one who had been willing to sacrifice himself for the world.
"Nothing's wrong with me now. I was messed up before. I was stupid to worry about other people and not myself. I would have never died the first time if I hadn't been stupid enough to have doubts about killing Jake. I could have led a whole demon army if I had taken up yellow eyes on his offer. How awesome would that have been?"
There was something wrong with Sam, but Dean didn't think that Sam knew what it was. He couldn't lie right now, so he would have had to tell him if he had known. "Is there anything different about you physically?" He was going to do some detective work.
"I don't sleep."
"Yeah, Sam, you've always had trouble sleeping," Dean pointed out.
"No, I mean I don't sleep at all. I haven't slept since I came back." Sam hadn't told anybody about that because even he had to admit that was weird—and probably not a good sign.
"Then you're not human," Dean declared.
"Well, I'm not Lucifer or a demon or a shapeshifter," Sam knew all those things to be true.
"You're not human. A human would not have let me turn into a vampire. I almost hurt Ben."
"So, what? Kid's a brat," Sam said.
Dean lost it then. He punched Sam. Sam was unprepared and went down to the ground. Dean punched him again and again and again. Sam lost consciousness and Dean kept on punching. When he had finally got rid of his aggression, he dragged Sam to the car and lay him out on the backseat. He would call Cas to figure out what was wrong. Because this shell might not be his brother right now, but if there was any way to fix him, Dean was going to find it.
The End
