a/n: I've never done a crossover before so I hope this is alright. I got this idea and it just stuck so I had to get it out there are more chapters to come and I really hope you like this one!
"You think he killed her and the guy from yesterday?" Dean asked Sherlock, they had barely been there for five minutes, there was no way this guy knew that.
"Oh, I don't think; I know." Sherlock replied as he began listing off his deductions before the Winchester's and Cas even had a chance to ask. The three looked at him, both surprised and impressed, Dean a bit doubtful. John simply looked on, smiling to himself, proud of his detective and wanting to show off his skills even more to this odd group of men.
"I'm getting real sick of you doing that real fast there pal." Dean said, this being their second murder Sherlock interrupted. Some Lestrade guy, apparently the lead inspector, had called him in on both cases since they had to act like they were just as clueless and having to pretend the man they were hunting was just a guy, not a demon they've been chasing for upwards of a month due to his involvement with Metatron. Of course they knew the demon killed both the victims, previously demons. Dean was getting real sick of this smartass. Cas on the other hand was anything but.
"That was actually really impressive, don't you think Dean?" Cas asked the older hunter.
"Sure. I guess." Dean said shrugging off the angel's question as he turned to talk to Sam.
"It was quite impressive, don't listen to him." Cas offered to Sherlock, which made the corner of Sherlock's lips turn up slightly.
"Thank you." Sherlock said sincerely, making John raise his eyebrows. Hardly ever did Sherlock actually mean those words. They were usually saved for himself or Mrs. Hudson, hardly ever strangers. But Sherlock immediately was taken to the angel, though completely unaware of his actual identity as an angel. Cas reminded him a bit of John, a bit on the shorter side though not nearly as short as John, most likely an ex-soldier with some family issues, quite clingy to the blond man in the leather jacket who had shown nothing but his displeasure towards Sherlock's presence. He had a soft smile and Sherlock quite liked his trench coat. He'd curse himself later for the blasted sentiment of comparing this stranger to John, but for now, he took to the odd man.
"So you do that all the time?" Cas asked curiously as he looked at the dead woman, trying to pin point all of the things Sherlock pointed out.
"Yes it's what I do. Make deductions." Sherlock said as he eyed him up, trying to get as much as he could out of the angel's demeanor.
"Like I said very impressive, even though you're wrong." Cas said plainly.
"I'm sorry what?" Sherlock said, the comment making him stop in his tracks. John chuckled to himself.
"This man is not who you think he is, neither are the victims." Cas started ready to explain everything to Sherlock, seeing as he had yet to pick up on when and when not to share Sam and Dean's career and what he actually was.
"Alright that's enough out of you." Dean said placing his hand on Cas' shoulder, which Sherlock noticed almost immediately relaxed the angel.
"Even though he's right." Dean slid in casually, Sam rolled his eyes.
"Oh is he now? What makes you so sure?" Sherlock said as he looked over Dean intently.
"Sherlock don't." John whispered behind him, well aware he was about to spit out every and any deduction he could.
"We've been following this guy for months. All the way from northern Michigan to here. So if you don't mind, I think you better leave this one to a professional." Dean spat.
"A professional you say?" Sherlock said raising his eyebrows oh this was going to be fun.
"Sherlock." John scolded quickly in attempts to stop the inevitable.
"Is that why you have fake badges?" He started anyway, "You're not FBI agents at all, you're not even cops. You're not enthusiasts either because why would Americans come all the way to London just to play copper. Let's see you're nothing more than a mechanic, no, you track people but what is that hm a hunter maybe you hunt people with your brother the failed lawyer and an ex-soldier pet." Dean just had to grin at the irony of Cas being called an ex-soldier.
"Sherlock. Cut it out." John scolded.
"But John." Sherlock said turning to face him.
"I know. And no." John said sternly. Sherlock narrowed his eyes at John before walking away and heading towards the main road and almost immediately into a cab where John could only hope he was headed home.
"I apologize about him. John Watson." John said turning back to face the other three. He stuck his hand out to Dean first.
"Dean Winchester." He said taking his hand.
"Sam Winchester." Sam said with a polite smile.
"Castiel…"
"Winchester." Dean quickly cut in as John took the Angel's hand
"He can be a bit of a child sometimes. I'm sorry if he offended you, he tends to do that quite a bit also but that's Sherlock. Anyway, I was hoping you'd might like to stop by our flat tomorrow? I know it doesn't seem all that enticing at the moment but Sherlock will be able to tell you much more about the man you're trying to find and definitely help you quite a bit. Feel free to drop by anytime tomorrow we will be home, 221b Baker Street. I do hope you'll stop by, nice meeting you gentlemen. Now if you'll excuse me I have to go make sure Sherlock isn't in the process of destroying our flat, good evening." John said with a pleasant smile before turning and heading towards the main road.
"Him I kind of like, the other one, not so much." Dean said shaking his head.
"You weren't a little bit impressed?" Cas asked Dean quizzically.
"Cas you're a freaking angel why are you so impressed by this guy."
"Because he's not an angel, Dean. It's impressive because he's merely human."
"You have to admit it's cool." Sam offered and Dean looked over his shoulder at him.
"Fine. Whatever. It's cool." Dean finally grumbled.
Later that night the boys were finally back in their motel, ready to get much needed sleep. Sam got into bed immediately but Dean sat down at the small table with Cas instead. Dean was relieved when he finally heard Sam's low snores.
"You know we have to visit Sherlock and John tomorrow right Dean?" Cas asked.
"I know. He has information we need." Dean said with a tired sigh.
"You're exhausted Dean. Get some sleep." Cas said standing up from the table.
"Sure thing buddy, I promise I will." Dean said with a small smile.
"Oh and Dean?"
"Yeah Cas?"
"You're extremely intelligent too." Cas said proudly before disappearing before the night.
a/n: Did you like? Don't be afraid to tell me what you think I accept all guest reviews too much love to anyone reading this see you next chapter xoxo