First time ever reading or writing cross overs as I always found them a little ridiculous. This is me eating my thoughts. Hopefully all characters are in character, and it's not too corny. I am a massively huge X-files fan and am excitedly awaiting the movie next month! It's been on my mind, so this is what happens.

Disclaimer: No Bones or X-files Characters belong to me

Booth was mulling over the new casefile he'd been given. It had been passed up to him because it was skeletal remains. He couldn't remember the last time he'd been given a case that wasn't. No experts had been on site yet, but it was difficult to determine what species the skeletal remains belonged to. Those who had stumbled upon it in the woods had said it's head was slightly elongated and that it looked to be of a small stature. Him and Bones were going to investigate within the hour. She was meeting him here, right about now actually. Booth looked up from the casefile on a to see his partner walk through the door.

"Speak of the devil."

"No-ones speaking, and the devil is a fictitious character making it wholey a waste of time to discuss it." Brennan went to sit in the chair across from Booth's desk.

"Holy a waste of time..speaking of the devil,get it?" Booth gave a very large childlike grin to Bones who raised an eyebrow.

"The devil isn't Holy Booth."

"No but..." Booth heaved a sigh and muttered to himself that she couldn't just let him have it "Never Mind" Brennan was about to question what he had mumbled when a knock sounded on Booth's door and two agents entered.

"Agent Booth, I don't believe we've officially met. I'm special agent Fox Mulder with the X-files and this is my partner Special Agent Dana Scully.

"Agent Mulder, Agent Scully, this is my partner Dr Temperance Brennan with the Jeffersonian Institute. What can I do for you" Booth leaned forward putting his elbows on his desk and lowered the volume of his voice. "Spooky?"

"Agent Booth," The other agent jumped in "It is hardly necessary or professional, I might add, to address a fellow agent with so little respect to their proper title" Brennan responded before Booth had the chance.

"Booth responded thus as a means to intimidate those who he feels threatened by. He assigns everone a nickname in an attempt to make himself feel more important and..." Booth made a coughing sound to interrupt Brennan. Mulder stood there with smart ass smirk while Scully half glared at the other occupants of the room.

"Spooky is as Spooky does." Mulder retorted in a slightly more spooky voice than necessary.

"I don't know what the means." Brennan input.

"It MEANS Bones, that Agent Mulder and Scully here work on the X-files."

"So they said, What is the X-files, I've never heard of that division." Brennan questioned with a curious note to her voice.

"Not many have Dr Brennan. It's where all the "Unexplained" cases within the bureau are dumped when people are either too close minded or too inadequate to solve them. Scully and I have an above average solve rate. The only reason that it doesn't stand at 100 is that many of our cases are difficult to categorize, although the offense is commonly discontinued."

"Bones and I have a 93 solve rate, and that is the bureau's accepted percent." Booth said while looking at Mulder, rising to the challenge that was obvious in Mulder's voice.

"It's hardly a pissing contest Mulder." Scully turned to him and glared before turning back to the forensic investigator and her partner.

"Why is it called the X-files?" Brennan questioned looking to Mulder. Booth wondered how she managed to ignore the majority of the conversation. This other agent was pissing him off. He needed to get a cocky belt of his own.

"Because the U-files doesn't sound as good." Mulder deadpanned sarcastically before continuing. "They were initially filed under U, but there were so many of them that they had to start filing them under X which had very few files of it's own to fill the drawer."

"Not many cases involving Xylophones or Xena I guess." Booth joked, to no ones apparent amusement.

"Anyways," Scully continued, looking at Booth as if she thought he was the biggest idiot she'd met. "We were hoping to lend our expertise to the case that you are currently investigating."

Booth looked at the two agents, the question obvious in his gaze.

"Elongated Head, small stature...we would like to see how the investigation pans out." Mulder replied to the unspoken question.

"No Way Spooky." Booth said shaking his head. "You are not going to hinder and decrease the validity of my investigation to chase your little green men."

"Grey" Mulder and scully responded at the same time.

"What? Grey What?" To everyone's surprise Brennan finished the sentence.

"Men Booth. Althought that's a slightly sexist term. Reticulans are usually reported to be grey, not green and they have elongated frontal, occipital and temperal lobes with a generally smaller skeletal structure in proportion to their head compared to Homo Sapian Sapians." When everone in the room just continued to stare at her, a smile appearing on Mulder's face, Brennan continued with her defensive sounding comment, directed at Booth.

"I read a lot and the likelihood that we are the only beings in the universe is very egotistical. Anthropologically speaking there is a lot of evidence in past cultures that might point to the interference of extraterrestrial beings. I'm not saying I'm confident that advanced lifeforms exist or that UFO's occupy the skies watching earth's inhabitants, as many ufo extremists believe, but extraterrestrial life is a scientific plausibility in whatever form it may take, comparable or not to that of life on Earth" Booth sighed and sat back, taking in Brennan's argument.

"Looks like you've found a kindred spirit Mulder." Scully spoke, and from her monotone it was difficult to determine the nature of the comment.

"UFO Extremists, I'm used to paranoid and delusional." Mulder responded, wide eyes turning to look from Brennan to Scully.

"Whatever Spooky, but you mess with my investigation or it's integrity and I will have you pulled off the case and reprimanded before you can say Repticulan."

"Reticulan" Brennan repeated. "Ruh, Tick, You, Lyn." She pronounciated in a very demeaning tone.

All stood silently for a moment before Booth got up, grabbing his jacket and walking out the door.

"This is going to be a long week."

Author's Notes : Please review if you would like me to continue this story. I am not completely secure in how I pulled off Mulder and Scully as I've never tried, and havent watched too much X-files lately. I do have another story on the go, so let me know if it's not worth my time.