The Power of Two:
Though before he could move, there was the gust of wind and the sound of wings and Castiel appeared behind Dean and Nathan in a whirlwind of tan coat-tails.
"Balls!" Bobby cursed; this was exactly what he was trying to avoid—but once an Angel had a scent, they were like a dog with a bone.
"I do agree that we should have a...chat." Castiel spoke.
Dean and Sam jumped from their seats and faced the Angel while Nathan twisted in his seat to look at the sudden appearance of the Angel with wide eyes, Cas staring back at him. Nathan stood slowly too and faced him fully, silent.
Dean found himself trying to figure out whether he should slowly intergraded himself in front of Sam or Nathan. It wasn't like Cas was the enemy, but right now he seemed really pissed. He knew that Sam knew how to protect himself, but by the look on Nathan's face, Dean knew that the kid had no idea what the hell was happening right now. And that was how Dean found himself inching himself in front Nathan.
"Hey, Cas." Dean greeted him as casually as he could, and Castiel's eyes slid from Nathan to him. "We were just talking about you," They had been, in a way; yeah, Bobby was just saying how he had wanted to keep Nathan out of the Angels sights.
Castiel didn't say anything, the look in his eyes did and Dean found himself cringing inwardly.
Sam stepped forward, trying to save Dean from some harm. "We just got back from saving that Seal in Philadelphia,"
Castiel looked at him, and Sam gave a silent sigh relief when he found that some of the anger had left the Angel's eyes. But that wasn't long lived when his eyes turned back to Dean, Nathan and Bobby.
"You have been hiding something very important in plain sight," Castiel addressed Bobby. "Something that could very well help in defeating Lucifer and the other Angels."
"That something is my son," Bobby growled, papa-bear coming out as he stepped around his desk and beside Dean. "And I've been keeping him from you with good reason."
"He is not your son," Castiel stated. "He is of John Winchester's blood-line, therefore he is a Vessel."
"You are not going to do this, Cas." Dean said, his voice almost a growl.
Nathan eyes shot around the room; never focusing on a person for longer than three seconds flat. He had no idea what the hell was going on or what this Castiel was to the others, but he could feel the unnatural power emitting from him like a charge. Nathan had no idea how far into this whole Devil-Angel business the others were in and apparently him as well without any of his knowledge, but he knew that none of it could be good if he considered a 'Vessel' for something and knew that it was bad with the way that the others were trying to get this man to stop paying attention to him.
"...It has to be done, Dean." Castiel was saying and Nathan did not like the sound of that and he could tell that the others didn't as well. "It could be the only way if you do not."
"That is not going to happen, none of it." Dean growled back.
"If you do not, then he will have to."
"You are not going to put a finger on him; he is not a part of this like the rest of us." Dean countered.
"But he is; we've known that there was a piece missing and this was it. He will join the fight,"
Dean ground his teeth together; didn't these dick-heads see that Humans were not their play-toys to do with what they wished? Cas was being a real dick-head right now, and that pissed Dean off more than he realized. He thought that Cas was different—knew that he was and right now he was just as desperate as the rest of them—but that was no reason for what he was trying to do—bringing Nathan into this when he didn't need to be. Dean was still processing that fact that Nathan was his twin, and that actually seemed to be the reason why this was happening.
Because Dean was the first born child, he was Michael's Vessel, but because Nathan was in the womb with him, he was also a Vessel to Michael. Sam would have been considered the second-born, and that made him Vessel to Lucifer—then there was the last born, as far as they knew; Adam, who in the line of things, was another Vessel for Michael. Adam had died a while back, so he was no longer in the picture and despite how it was done, Dean was glad that he didn't have to be a part of this. Unfortunately, Sam was still a target for the Devil and Dean was for Michael, but it would seem that it didn't matter whether or not Dean said YES, because substitutions seemed to be everywhere.
"Nobody's joining anything!" Dean shouted.
Castiel's expression didn't change. "This is the way that it has to be, Dean."
Dean's nostrils flared with his frustration. "Nobody is taking anybody as a Vessel and having a battle that is going to cause the Apocalypse, Cas. The whole point of Team Freewill is that we're throwing out the script, making our own pages."
"We've tried that and it has gotten us nowhere." Castiel informed, his voice grave. "I'm sorry, Dean, but this is how it needs to be." he disappeared.
"Wha—!" but that was as far as Nathan got because Castiel reappeared in front of him (behind Dean and Bobby) and placed two fingers in the center of his forehead.