It was a Friday night and you were attempting to catch up on your favorite show. Your eyes followed the story on the screen as you picked at your pasta and sipped your beer. You'd hoped Cas would have joined you by now but as the time grew later you knew it was unlikely you'd see him that night. You supposed you could pray to him, but you tried not to do that unless you really needed him. You didn't want him answering your call if he was needed elsewhere.

Half an episode later, your favorite angel appeared in your living room causing you to nearly drop your bottle. Instead, you leaned forward and placed it on the table as your eyes ran over Cas, taking in his frantic movements and worried expression. You immediately got to your feet. "What's going on?"

"I need you," he said. He grabbed your backpack from the floor near the front door and pushed it into your hands. You didn't even have time to take a breath before he grasped your arms in his hands and flashed you out of your house.

It was always so disorienting when he did that and he normally gave you more warning. He started pushing you toward a large abandoned building. It looked like it might have been some sort of hospital in its day. "You have to help them. There are wardings and I cannot enter."

You dug your heels in to cease your forward momentum. "Cas. Stop. I need to know what's going on."

He raked a hand through his hair. "That's the point. I don't know. I heard Sam scream then nothing further."

"Okay. Alright." You put your hand on his shoulder. "What were they hunting?"

He shook his head. "We weren't entirely sure. There have been a lot of missing people. We found a couple freshly mutilated and followed a figure in a cloak here."

Your chest constricted and you forced yourself to suck in a breath. "When you say mutilated, would you say eaten? Picked at, maybe? Pecked?"

He tilted his head. "I am uncertain. Maybe."

"Any feathers?"

His brow furrowed. "Yes. Several."

"Shit." You dropped your bag at your feet and started to dig through it. You'd only encountered harpies once but they were seriously one of your least favorite things to hunt. Strong and near invulnerable with killer claws. Never mind the wings they could use to fly away from you. Trial and error last time had told you they had to be burnt as they'd recover from anything else. You pulled several small ammo boxes from your backpack until you found the one marked with a flame. "Your boys have guns on them?"

"I believe they had the shotgun and several blades on their persons."

You nodded in thought while you loaded your gun. Finally, you glanced up at Cas. "Go back to my place. Get two of my Glocks and bring them back."

He left, returning just as quick. A long blink and you never would have known he was gone. You loaded both of them with incendiary ammo as well. When you finished you put away everything but the guns. You thrust the bag into Cas's arms. "I'll be back."

His eyes searched your face. "Be careful."

"Always," you assured him and tucked two of the guns into your waistband while keeping hold of the other. You leaned toward him and pressed your lips firmly against his, pulling away before either of you could deepen it. "I'd disrupt the warding, but there is probably so much graffiti in there I'd never find it. Just...stay vigilant."

You hurried into the building, toeing the floor carefully as you went. The last thing you needed was to fall through a soft spot. You tilted your head as you struggled to determine where the sounds you were hearing came from. Nothing was loud, just a step on the floor or the creak of a door. Shit, this place was creepy. You hated creepy shit.

"Anybody here?" you called out, ready to face the Winchesters or whatever they had chased into the building. Though if they were facing what you thought they were, there would be more than one of them. Harpies travelled in flocks.

You turned down another hallway, eyes straining in the darkness searching for light. "Hello?"

You stifled a scream as a hand covered your mouth and you were pulled into an open doorway.

"Are you insane?" your captor hissed and you immediately recognized him as Dean Winchester from the photo Cas had shown you once.

"On occasion. Where's Sam?" you asked.

Dean's brow furrowed. "Who are you? How do you know my brother?"

"Focus, Dean. Where's Sam?"

"Right here," another voice answered as a towering shadow entered the room. In the pale light coming from the windows you could see him look between you and his brother. "Who's this?" he asked Dean.

"No idea."

You pulled the weapons from your waistband and handed one to each brother. "Safety's on. Incendiary ammo. It's hard to get and hurts like a bitch so don't shoot yourself. Don't shoot each other. And especially...don't shoot me."

"Who. Are. You?" Dean repeated his earlier question.

"Y/N Y/L/N. Nice to meet you. Now, let's go."

You turned to leave the room and a hand stopped you. Looking back at the brothers, you frowned. "What now?"

"Thanks for the name and all, sweetheart, but who are you?" Dean again. He seemed rather hung up on this. You just wanted to get your hunt on.

"Short version: Cas's girlfriend. Slightly longer version: Cas's hunter girlfriend who he brought here to help the two of you. So, can we do the meet and greet later and kill us some harpies? One bullet straight to the heart should do it. They're pretty flammable."

You didn't wait for them to say anything else, simply proceeding with your hunt. You sniffed the air and turned in the direction that smelled the worst. Harpies weren't exactly the clean-living type.

As soon as you'd dodged out of sight the brothers looked at each other. "Since when does have Cas have a girlfriend?" Sam asked.

Dean shrugged. "No idea. And why are we just now meeting her?" He paused for a moment before jerking his head toward the open door. "Wait...harpies?!? Y/N, wait up!"