A/N: Had a major S4 marathon last night (Up to CAIADB), so now I'm all hopped up on Castiel being all intense hardcore soldier *squee* Thanks to the wonderful N-Sarrova, my beta who knows/worships all things Cas. Also, I though earlier it would only take me 3-4 parts to write this, but it now looks like we are on the 6-7ish path. Fear not, though, updates will continue regularly. Ah the joys of being home from school :) And now I'm done. Really. Enjoy!
A/N 2: Nope, still nothing by way of owning these amazing boy
Castiel looked between Sam's exposed forearm and Dean's blood-soaked chest and back again, a sudden terrible comprehension dawning on him.
"Sam..." He began in a low voice, but the youngest Winchester wasn't paying him the slightest attention.
-"Bobby, you've still got those IV supplies, right? From the St. Jude's case?"
-"Sure I do, but- you two the same type an' all?"
Sam readjusted the nearly-soaked towel on Dean's abdomen and glanced at his brother's closed eyes. "We're both AB." he answered, then more quietly, "just like Dad."
He looked up at Bobby. "Come on, hur-" "SAM!" Castiel interjected, stepping forward, "You cannot possibly be serious about this."
Sam gaped at him, incredulous. What frigging celestial decree could they possibly be breaking now?
"Serious about what?"
"Your blood. You cannot give it to Dean. It is" - the angel casted his eyes to the ground- "toxic."
Dun-dun-dun. By the way, Sam's line about their father's blood type isn't random, it is specifically shown in canon...anyone care to take a guess where it is? *holds tempting virtual chocolate chip cookie* Not that I am resorting to petty bribes for reviews...nope...not at all :P