Warning: This does contain a minor spoiler for season 15. 

"Y/N, there's someone here," Jack whispered, shaking your shoulder, waking you up. You shot straight up, narrowly missing his forehead with your own as you automatically reached for the gun on the nightstand.

"What? Where?" You asked, trying to force your mind awake. Jack was already tugging on your hand, but you turned to the other side of the bed, instinctively trying to wake Dean. But then you remembered he and Sam had taken off late yesterday. Something about checking to make sure Jody was okay.

"Where's Cas?" You asked, keeping the gun in your hand as you followed him to the hallway.

"He left. Said he needed to talk to someone," Jack whispered, pulling you towards room 28, an unoccupied room. You could hear mumbling from behind the thick door, items falling to the ground. "But Y/N, how could someone get in? I thought this place was warded!"

You pulled him to a stop. "Jack, it's okay. Why don't you go call Cas, and I'll see what's up." Jack padded off, his socks making little sound on the tile. When he was around the corner, you took a deep breath before shoving the door open.

In your hunter's stance with the gun cocked in front of you, you strained your eyes to see what was making the noise in the darkened room. Muttered cursing could be heard, in a voice that was eerily familiar.

Your hand shaking slightly, you stepped forward, flipping the light switch on. "Dean!" you exclaimed with relief, looking at the man who lay sprawled on the floor.

As you started to lower the gun, you noticed the black dress pants instead of the faded denim. A sky blue shirt was tucked neatly into the waistband. A blue and yellow tie was knotted tightly around his neck, a pair of fancy suspenders finishing off the outfit. "Suspenders?" You whispered. "Dean, what the hell are you wearing?"

He dusted off his pants, straightened his tie before he stood up. "What do you mean? This is my normal attire for a Monday morning. And who the hell are you?"

If the suspenders weren't enough to have you concerned, Dean's lack of memory had you raising the gun again. "You're not my Dean. So I would be explaining fast before I put a bullet between those green eyes of yours."

"Your Dean?" He muttered, glancing around. "I am Dean Smith, and I seem to have lost my way. I was on my way to the office. Where am I now?"

"You're in my home. In Kansas," You answered, watching him closely as he glanced around the small room. Suddenly he bent over, putting his hands on his knees as he took in deep breaths.

"No...no..what's happening?" He asked you. "I thought it was weird waking up in this place, and now...,"

Tucking the gun in your waistband, you stepped forward, still wary. But your gut was telling you this man meant no harm. He was lost and needed your help. "Y/N, I wonder if this is a Dean from another world. Like those last ones," Jack spoke up from behind you, making you jump.

"I think you're right," you agreed. "Hey, Dean..what's the last thing you remember?"

"I remember going to sleep last night," he thought carefully. "Had a really strange dream. There was this guy Chuck. He said he was killing off worlds? He handed me this drink, and then I woke up here."

You turned to Jack, completely ignoring the new Dean for a moment. "Chuck wanted him here? Why?"

"I just want to go to work," this Dean complained. "I'm up for a promotion, and this stress is seriously throwing off this whole vibe I was working on."

Rolling your eyes, you took a deep breath. "Listen, why don't you come sit down in our Library, and we'll see if we can figure something out."

He followed you down the hallway, past your room, and into the library. "Wow, this is a crazy place you call home," he exclaimed as he sat down at one of the wooden tables. "And you said earlier, your Dean. What do you mean?"

"I know this is confusing, but that guy Chuck? He's God. He had created multiple worlds, but now he's throwing a bitch fit, and killing them off. One by one,"

"My world..," This Dean seemed shocked. "It's gone?"

"Probably," you answered, feeling sorry for the man.

"So, this is another world, and you have your own...Dean. What's he do for a living?"

You weren't sure if this version of Dean could handle the truth, but you were tired and in no mood to come up with a lie. Especially while in the bunker, surrounded by the Supernatural. "He hunts Monsters."

Dean's eyes grew huge as he almost tipped the chair over. "No freaking way! I knew there were ghosts, but wow."

"You...you knew?" You shouldn't have been surprised. This man continued to surprise you at every turn.

"Of course. Actually killed one last year. With this giant of a man named Sam. Now we're pretty good friends."

"Y/N, Cas called. He's on his way back and so are Sam and Dean." Jack announced before yawning.

"Jack, go get some sleep. Dean and I will be...fine," you assured the young man who didn't argue too much. He turned back down the hallway, leaving you alone with this strange version of the man you loved.

"Y/N," he said your name as if he could taste it on his lips. "I knew a Y/N once, but she was nothing like you. She was all bite. She cared more about her own appearance than anything else. I was glad when she was moved to the Detroit branch. Even if we did have a couple of fun late nights threw in."

It was easy to see what he meant by the late nights by the look on his face. Scooting his chair closer, his hand rested next to yours. "So you and this Dean...are you a thing, or...,?"

"We're definitely a thing!" Dean growled from the top of the stairs. His hands clenched the iron railing while Sam tried to push past him. "Now get your slimy hand away...,"

"Dean, this is Dean Smith," you tried calming him down as you scooted away. "He's from one of the collapsing worlds."

"I remember a Dean Smith," Sam muttered as he bounded down the stairs. "Dean, remember? The alternate reality that the freaking Angels put us in? The stupid suits...,"

"Hey, I happen to like my suits," Dean Smith interrupted. "And it cost me more than all of your outfits. Combined."

"Don't care," Dean grumbled, coming to stand beside you. "But yeah, I remember that. Think it was actually one of Chuck's worlds or...?"

"I think this guy answers our question," Sam insisted. "But where's Sam?"

Dean Smith shook his head sadly. "If everything is true, probably blown to bits by now."

"Great. Another version of me to throw into this world," Dean mumbled under his breath, his hand resting possessively against your lower back.

"Throw into this world?"

You had to feel sorry for the guy. Everything he had known, everyone he loved. Gone. "Listen, it would be really weird to have you here. But with your...office experience...you could get pretty much any job here. You'll do just fine."

"So, I get here, and you just toss me out to the wolves?" He pouted, staring directly at you which seemed to annoy your Dean even more. You liked seeing this possessive side of Dean, but it wasn't helping this Dean at all.

"You can stay for a while," you assured him, feeling Dean's hand clench against your back. "But yeah, I think it would be better if you tried to find your way. Soon."

He glanced between you and Dean, sighing heavily. "I'll be gone tomorrow. As long as you'll give me a lift?"

"Done," your Dean agreed. "Now I'm gonna catch a couple of z's before the sun comes up."

Dean started to head down the hallway, but you hesitated. "Go on, I'll be right there," you assured him. "Just gonna get this guy settled."

Dean narrowed his eyes but knew better than to say anything. "So, he always like that?" Dean Smith asked.

"Especially when someone is invading his territory. But come on, let's get you to bed for the night."

You turned to head down the hallway, but Dean grabbed your hand, turning you around. "Listen, I get it. But I envy the man."

"You do?" You couldn't help but notice how close he was. He smelled of expensive aftershave and mint, so unlike your Dean. It was offsetting.

"Yeah, if there had been a girl like you back in that world," he spoke softly. "I would have done everything in my power to stay with her."

"Maybe you'll find someone here," you offered, moving to the side when his hand went to brush your cheek.

"Maybe," he agreed, refusing to take his eyes off you. You knew at any moment Dean could come out of his room, and things wouldn't be pretty. "But why does this guy get everything, huh? This cool place to live, hell a world that isn't dying around him. And then there's you."

"You don't know me," you argued.
"True, but I think we clicked the moment you opened that door," he started to argue, but you had enough.

"Listen, maybe on your world. But here, I belong with my Dean. The Dean that sleeps with a gun under his pillow. The Dean that drives that sexy black beast of his, who would do anything in the world to make sure the people he loves are safe. So thanks for the offer, but if you can't understand this, then you better...,"

He threw up his hands. "No, no, I get it. It's just been a long day, and I'm the only one left from my world. Makes a guy think. That's all."

"You can sleep in here," you told him, pointing to the room you had first seen him. "Then tomorrow we can take you into town. You can get a bus ride to one of the bigger cities. You'll be fine."

He nodded, even though he didn't seem assured. Shutting the door behind him, you turned to see your Dean leaning against the door that led to your shared room. "He hit on you?"

"Yeah," you answered, holding your hand up when he started to move forward. "But I handled it."

"I heard you," he admitted, pulling you against him, his arms wrapped around your waist. "You sure? That version of me will probably have a mansion before we could blink. You don't want that kind of life?"

"Hell no," You insisted. "My five-star life is right here. Living in this bunker, knowing that I'll fall asleep tonight with your arms wrapped around me."

"Damn straight," he agreed, pulling you into the room, and all thoughts of the other Dean fled from your mind.