Using his angelic wings, it took Castiel no more than a milisecond to arrive at Dean's house. He helped Sam and Bobby make some preparations for Ben's 12th birthday. It was strange for an Angel to be in a human party, but as discussed previously, everything in the world formulated by God and his Angels is not to be taken at surface value. For a birthday party of a child can mean a lot too, and while most people may not see it, Cas entirely does, having been the one to bestow Creation with such complexity himself. For this party, Cas was assigned on cook duty with Dean because amazingly, he made some good food too. The birthday cake was supposed to be bought, but the guy decided to DIY the whole thing. He made the Oreo base with love and care. While he's not too talented, seeing that he only knew how to cook for less than a year, but Cass put all of his efforts into shaping the ice cream properly. Of course, since they didn't have time to entirely freeze the ice cream in the freezer, Cas did that himself too.
Of course, the next few hours weren't exactly Castiel's best hours. While Ben and his friends are playing and Sammy entertaining them as a clown (the younger Winchester lost a bet, don't ask why), the parents were having lots of chit chat, but Cass had to avoid them at all cost, for he's incapable of lying. An unfortunate side effects of being an Angel, for a lie spewed by an Angel can and will cleave the universe and morphed it into unspeakably horrendous mutiliation. Even as he tried his best, it was impossible to avoid the curious gaze of the parents as he came to be Ben's god-father as of recently. Even Dean couldn't help his best friend to avoid that so they probably had to cover up a lot of things as they go by.
"Excuse me, hi, what's your name? I'm Dan, and this is my wife, Danielle", a parents spoke up.
"Um...I'm Jimmy Novak. Nice to meet you", Castiel said with an unemotional facial expression.
"O..Okay? So Jimmy, may I call you Jimmy?"
"Be my guest"
"So Jimmy, what is it you you do for a living?"
"I used to be a soldier in the battlefield, stationed across many places"
"Oh that's awesome. I used to be in the military too? Of which military branch are you on, Jimmy?", Dan ecstatically replied.
"He doesn't want to clarify on that, Dan. You know, the years soldiering abroad did not do poor Jimmy well enough", Dean hastily covered the question for Cas while patting the Angel's shoulder.
"Okay? What do you do now?"
"Well, um...I used to work in an electronic store but I don't do much work nowadays".
As Dan was about to ask more question, the kids suddenly screamed in fear and ran into the house quickly. There was a gust of wind escalated into a massive thunderstorm, a massive tremor and the lights started to flicker. Castiel, Dean and a tortured Sam prepared themselves while the parents were too scared. The three legendary hunters salted the house, much to the parents' disapproving looks. They thought those three were either making jokes, did not understand the gravity of the situation, yada yada. Once again, to the surprise of the parents, the house went back to normal as the salt line was complete. Nevertheless, Crowley, the newly appointed King of Hell, showed up through the salt anyway as time slowed down before it completely stopped. What good would salt do against Hell's king anyway?
"Hello boys. Driving up some salt for this stinky birthday party?", Crowley stealthily insulted the three hunters.
"Crowley", Castiel uttered the demon's name with an utterly calm, yet furious tone.
"Castiel. Fresh from a ludicrous gibs. You should have called first, you little shit!", Crowley maintained his sarcasm, but one could tell the underlaying rage in the demon's voice.
"Hey Crowley, what do you think you are doing here?", Sam asked, still in his clown costume.
"Ah Moose. I thought you're afraid of clowns?", Crowley inquired with an absolutely "five inches from a bellow corpsing" voice.
"I lost a bet. Don't you dare ask the details", Sammy sounded absolutely pissed off saying so as Dean cackled like a supervillain. Even Cass made a small laugh over it.
"I bet you did. But I'm not here for you two denim-wrapped nightmares. I'm here for that giraffe in the stupid trench coat. Hello Asstiel, did that birthday party go fine and dandy? Cause Hell is NOT DANDY AT ALL, MOROOOOON!", Crowley suddenly screamed out of his lungs, pissed at Cass as much as Sam does for Dean at the moment.
"Do you know how much damage you just cause me? Hell's completely trashed", Crowley does not sounded less pissed off.
"Come on, Crowley, it's just Hell having some damage. I mean it's not the end of the world or something", Dean interjected, trying to reason Castiel's actions while looking like an uncaring asshole.
"Not the end of the world? Like what in the hell, Dean? The demons are looking like shit down there. And by "trashed", I mean your buddy here almost collapse Hell. He burned Hellfire, shackled chain itself, freezing infernal ice, making demons swallowing themselves from the inside. (beat) Lightning strike itself as punishments, damned souls experienced paradise, and that's only a few of the many marvelous things that make no sense at all", Crowley projecting his voice like a drama queen he was.
"How much damage did I cause you, Crowley, for resurrecting Bela Talbot?", Castiel inquired much more cordially.
"Well, so bad that had it not been you paving my way to Hell's throne, I would have murdered them all out of spite before you killed me, Cas. If you have any shred of angelic decency and integrity, I expect that my place is neatly fixed", Crowley gave his request before disappearing, returning the flow of time back to normal.
"Damn Cas, what did you do to Hell?", Sam asked.
"Apparently, I wrecked more havoc than necessary"
"Wreck havoc?", Dan incredulously interrogate.
The boys had no idea how to answer that so they decided than Dan should get the "clean mind" treatment so that all the supernatural troubles can be out of the way before the party resumed. Just then, Lisa finally came home cause she got some business to take care of.
"Hello Cass. So nice to meet you! It's been two months!", Lisa's greeting to Cass was way warmer than that of Sam or Dean. The Angel is after all, an endearing guy.
"Lisa", Castiel hugged her as he happily replied.
"Cass? I thought his name is Jimmy?", Dan asked again.
"Oh, uh, he just like to call himself Cass. You know, he's...a fan of Clarence Odbody", Dean covered for his friend again, to an epic failure. Dan luckily took it in as truth, with suspicions of course.
The party did not go way after 12 am. The adults were all exhausted playing with children, so naturally, Cas volunteered to do the clean up. By the time Dean went to bed, time stopped again as Balthazar appeared, agitated at his superior for leaving him to do all the work. Castiel had to do console and apologize his subordinate before both of them returned to the mansion to continue investigating Yaldaboth from what the Fates told them.