I'm going to try my hand at third person POV. I feel the reader would get a lot more information out of the story if it isn't JUST in Arya's view.

~3rd person POV~

~3 months later~

Months have passed since Arya joined the Winchesters. She's just about fully grown, too. Her legs have filled out, making her taller and an excellent runner. Not only has she adapted to being a dog, she's starting to come to terms with her being in a new universe, as well.

"Sam?" A man comes out of a motel room door, calling for his brother while throwing bags into his 1967 black Chevy Impala.

"Yeah?" A voice from inside the room, the bathroom, replies as Sam sticks his head out the doorway, a toothbrush in between his lips. Dean turns around to address him quickly.

"Grab Arya and let's go, I think we got a new case."

At the mention of her name, Arya's head pokes up from her comfy resting place on one of the two beds. "What kind of case?" the dog asks. Though no one can understand her, she still likes to speak.

"What kind of case we looking at here?" Sam echos Arya's question. She smiles, satisfied that her question is gonna get answered.

"Well, to me, it sounds like a vengeful spook." The Weimaraner snorts. Both brothers stop and look at her, causing her to sheepishly grin- as much as a dog can- and cover her face with her silver paws. "But locals are accusing some delinquents that have been roaming the town."

Sam tumbles out of the bathroom, struggling to put his pants on properly. "Kay, lemme grab my jacket and Arya's things."

"You look ridiculous." Dean finally walks back in the room to see his brother making a fool of himself, all the while Arya is looking back and forth between them trying to control her laughter.

Flashing his, what Arya remembers from the show to be called, 'bitch face', Sam sighs but collects his and their dog's things, loading them up. "Come on, girl!" he beckons her, though he didn't really have to because she's extremely intelligent and coherent.

'I wish I could tell them everything...' Arya sighs sadly from her seat in the back of Dean's car.

~~Time Skip brought to you by: Hillywood's Supernatural parody reference! Do you know what it is?~~

The car ride was fine for the first hour. Arya got to stick her head out the window again, Dean listened to his music, and Sam was able to catch some more z's. Then a half after the hour mark is when everything went to Hell.

Dean thought it'd be funny to stick a pencil in Sam's open mouth and then blare the music. The man woke with a frantic start, karate chopping the air before settling his eyes on his brother. "Really, Dean!"

Dean just laughs, watching Sammy. And by watching Sam, he subsequently takes his eyes of the road and they all swerve a bit. Arya's head gets jerked around before banging it on the corner of the rolled down window. 

She yips loudly, alerting the boys of her discomfort and when Sam looks behind him, she gives him her doggy disapproving stare. "You okay?" he asks.

The dog just rolls her eyes but nods that she's fine. "Oh Sammy you should have seen your face!" Dean chuckles and drawls out as he teases his poor brother.

"It's not funny, Dean! You swerved off the road, had Arya hit her head, and I almost choked on a pencil!"

*Snort*

Everything goes quiet.

"Dude. Arya laughing like a human is hilarious."

Grumbling, Sam tries to go back to sleep, though, Arya observes, he keeps one eye open.

~~Time Skip brought to you by: The Trickster!~~

4 gas station breaks and a sick dog later, the trio get to their destination. "Ahhh," Dean breathes. Arya takes a sniff, confused at what Dean's smelling, "The fresh air of Ocean City, New Jersey."

'What's so cool about this place? I've never been here...'  Thinking to herself, Arya continues sniffing, going as far as the ground and some nearby trees before getting called back.

"I'm gonna guess researching comes next?" the silver beauty barks.

The brothers look down to her, "Man, we gotta get some kind of animal translator or something." 

"I swear, this dog's human or something." Dean gestures down to her.

"That's what I've been trying to tell y'all!" she barks again.

"Oh well. Let's get goin'." The shorter of the two leads the way.

Arya was right, they went straight to the library for research. However, a sign on the front door said, in all bold letters, 'NO DOGS PERMITTED Service dogs allowed'.

"Should we say she's a service dog?" Sam asks.

"Eh, they'll probably ask for the paperwork we don't have. Plus we don't got one of those vests either."

'Dean has a point...' Arya sniffs. 'Now what are we gonna go?'

"Well I guess I can take her and find us a motel room while you try to dig up what you can about this town's history?"

"Uh- no way, I ain't sitting in a library all by myself filled with book geeks. I'll get the room, you study. You're best at it anyway."

Without waiting for a retort, Dean whistles for Arya to follow her and they quickly take their leave, leaving an unamused Sam at the building's entrance.

"Heh, you're fast aren't ya?" Arya smiles up at her companion after they went for a jog looking for motels.

Of course, they passed multiple motels already but Dean just wanted to draw out the time so he wouldn't have to be stuck in a dingy room until Sam gets back.

"It's been an hour! I wanna lie down!" Arya whines, stopping in her stride. Dean stops as well and looks back to the dog.

"Alright, alright, I get it." He can tell she's tired by how heavy she's panting. "Closest motel, five blocks. Race ya there!" Dean takes off in a burst of speed, leaving the four legged animal no choice but to run and catch up.

~~Time Jump~~

By the time the two got a room, Arya's been glaring at Dean the entire time. "What? Exercise will do you good! Though I'm not as fond of it as Sammy... What!?" She continues shooting daggers as he unlocks their room. "She was cute! Of course I'm gonna flirt. You should know this by now."

'Idjit...'

"Hey! I know that look! You're probably insulting me in your dog brain. How are you so smart anyway?"

Arya gives the man a look that says 'Seriously?' as if he really expected an answer. 'They only ask that question every other week!'

"Touche..."

"Hey." Sam suddenly walks in, scaring Arya into a defensive stance. "Down girl. I got your text Dean, glad you could find a place that's not as bad as the others."

"Find anything? Town lore? Past deaths?"

"Yeah. A local died in a nearby park two weeks ago. The crime scene was pretty brutal, too. The victim's throat was slit and his stomach's contents were spilled."

"Yikes," Dean recoils. Arya just scrunches her nose. A lot of the hunts she's been on has her hunting down the scent of the supposed assailant. And to do that, she usually had to smell the dead body, which she does not like.

"Yeah. But I didn't see anything weird about the park where it happened and most of the locals around here are blaming a group of thugs."

"So, were there any witnesses?" Arya asks...barks.

"Witnesses?" Dean's eyebrow quirks, ignoring their partner.

"Nope. Man was walking home late from work. Has a couple work buddies we can interview, though." 

"Sounds good. Let's go."

"Woof!" Arya barks excitedly, happy to be on a hunt. It's just boring when they aren't on one. There's only so much she can do as a dog.

~~Time Skip brought to you by: Me; I'm not sure I like writing this way... I'll probably switch back next chapter.~~

A woman at a front desk of a business building looks to the two men and dog skeptically. "Sir, we can't allow that large dog in our building."

"Serious FBI investigation going on here, ma'am. She's our partner and comes with us everywhere," Sam nicely explains, following Dean's lead by flashing her their fake badges.

"Mmm, okay. And who were you looking for again?" the lady asks. Arya noticed the entire time that the woman's high-heeled foot never stopped tapping. She could only imagine the worker was staring at Dean, too.

"Coworkers and friends of Don Bartman." Sifting through the data base on her computer, she gives the boys the information they were looking for. "Thanks...Margaret." Dean flashes his famous smile.

"Y-you're welcome, sir." Arya rolls her eyes, not knowing she did it at the exact same time as Sam.

The silver furred dog growls on their way up to room 209. 'It's bad enough to see it in the show- but in person? It's so cringy!'

Sam hides a smile with a light chortle that no one else catches.

"Alright, room two o nine. Ronald Klumpar, friend and next door neighbor coworker to Don. I'll talk to him and you go check out Don's room for any sign of EMF, just in case."

Sam nods, heading off.

"Wait, who do I go with!?"

"You're with me." Dean answers Arya's question like he understood.

They are getting better at understanding her, though, so she'll give him credit for that.

"Mr. Klumpar?" Dean knocks on the plain wooden door with a blurry glass window pane in the middle. 

"Uh, yes?" A man answers nervously. He's a hefty looking fellow. No facial hair but a bald spot on top of his head.

"Special Agent Lonoff. This is Arya." The glare of his badge blinds the man a bit from the sun. "I'm here to ask questions about the death of Don Bartman. You two were friends and coworkers, correct?"

Ronald seems to consider this for a moment before stuttering, "Uh.. yeah, yeah. Come in..." letting the two through but glancing anxiously at the Weimaraner. 'I like when they introduce me and the people look at me worriedly...' 

A dazed, smug smile lingers on Arya's face as she sits nicely next to Dean on a chair in front of Ron's desk. "So, Mr. Klumpar, could you tell me anything strange about Don the week before he died? Did he ever complain about strange smells? Hallucinations?"

"Bark!"

"Strange noises?"

"Nuh-uh...n-nothing like that. He seemed perfectly normal to me," the large man answers. Arya sniffs the air and then winces is disgust.

'Smells like sweat and anxiety...Bleh' She sticks her tongue out but hastily retreats. 'BAD IDEA, BAD IDEA! Now I can taste it...'

Dean peers down at his dog for a second, wondering why she's acting weird.

"Was he acting weird at all? Weirder than usual, maybe?" The older brother continues to interrogate.

Slyly, Arya watches as Dean sneakily pulls out his home made EMF and hands it to her. She grabs it in her mouth, making sure it's pretty well hidden before standing up and walking around.

When the brothers are busy talking and one of them are doing something else, one usually hands their reader to Arya so she can inconspicuously roam around and check for readings.

Absolutely nothing.

The dog drops it on the ground. "Heh, sorry, my dog dropped something," Dean smiles and bends down to pick up his device, securely hiding it back in place. Arya shakes her head 'no' to let him know that nothing was out of the ordinary.

"That's all I know, he was fine- I swear!" Ronald cries, now visibly upset.

"Okay," Dean stands up, "I'll leave you to your things. Let's go Arya."

The three of them meet up right outside the building. They get in the Impala and start reciting their sides of the story.

"Don's office had no readings whatsoever."

"Neither did Ron's. I had Arya check." Arya smiles proudly. Sam chuckles and gives her pat on the head.

She'd never admit it, but, Arya loves having her head and ears scratched!

"But Ron did seem overly anxious and sweaty. He was pretty hysterical, too. I have a feeling he knows something."

"Hm," Sam thinks, "well after I checked the victim's room, I went back down to the front desk and asked for Don's other friend, Jon. Funny, I know," Dean and Arya chuckle at the coincidentally funny names of the three friends. "Jon's out for another two days on a trip, so, no questioning him."

"Ugh..." The large dog sighs in annoyance. "If we can't ask him, we'll never get anywhere!"

"Guess we'll just have to wait for ol' Johnny to get back. Now let's go get something to eat, I'm starving." 

"You're always hungry, Dean.." They drive off to the nearest diner.

~~Time Skip brought to you by: My new haircut! Heh... you'll never see it >:3~~

The first week Arya joined the Winchesters was a stressful one. She would never eat the dog food the brother's would get for her. They even tried the gourmet dog food. You know, the super expensive ones for special dogs? Yeah. She wouldn't eat those, either.

So they pretty much gave up on trying and attempted to smuggle her in the grocery store for her to pick out her own grub.

The shocked look on Sam and Dean's faces were hilarious when their dog picked out a basket full of human food. They thought she'd go and pick out some dog food that she'd like, not human food!

"Sam," Dean quietly speaks to his brother off to the side, "Are you sure this dog isn't anything...but a dog?"

"Dean. We did all the tests. Yeah she's different but she's just a dog and if she doesn't want that mushy dog food, which I don't blame her for not wanting, then we'll get her food she will eat. Look how skinny she's gotten in the past week. She only ate about a small can of food in total. She needs the strength."

"Fine. But we aren't spoiling her!" Dean sternly glares at Sam while pointing a finger.

Chuckling, Sam raises his hands in defense, "Okay."

In the motel, Dean grumbles about how the diner got his order wrong but perfectly put together a dog's. Of course the diner didn't know they were making a double cheeseburger with fries and a side of ranch for a dog, but why did Dean's bacon cheeseburger have to come out as a bacon veggie burger!?

Seriously! They made a veggie burger but topped it with bacon! "What?!" Dean outbursts in astonishment again.

"Dean, could you quiet down. You've done that three times in the past hour now," Sam scolds with a sigh.

"It's scary how wrong they got my order, Sammy!" He flings his burger in the air. "I mean, It's not even edible! Veggie burgers are gross!" Munching on a fry, Dean tosses the burger across the room to Arya, who just finished her fries.

She sniffs it, growls, picks it up, and then lobs it back at Dean, landing smack dab in the middle of his face. "Hahahahaha!" Sam laughs harder than he's done in a long time, which makes Arya smile.

"Bleh! Gah! Arya!" Dean bellows, sliding the muck off his face and flinging it onto the wrapper. He glares at the smug dog before sighing. "Man whatever...I'm hittin' the hay." He lands backwards onto the mattress of one of the beds, seemingly already asleep.

"Guess you're with me tonight, girl." Sam smiles, gets ready for bed and then joins his brother in rest.

The sound of her two best friends lulls Arya to sleep when she curls up behind Sam's back.