You decided to stay in the bunker with the Winchesters and even went along with them in hunts. Castiel had promised not to tell them about your secret, so they knew nothing about your wings or anything. They accepted you as their own and treated you like their sister.

Meanwhile, Castiel offered to train you and you two grew quite close. Most of the time, you two would just spend time talking for hours, telling stories.

"And that was the time my brother made it rain frogs," Castiel laughed.

"He didn't get caught?" You asked.

"Of course he did. Our father was quite angry," he said.

"Wow. Your family sounds exciting," you grinned. "Wish I had one."

Your smile faded slowly as you started to remember you never really had a family. And you didn't mean your flock because they were really close to you, but you meant like a real family.

"What do you mean (Y/N)? Of course you do," Castiel said with a look of concern.

You glanced up into his blue eyes, confused by what he meant. "I do?"

"Yes, you do. Sam and Dean treat you like their own sister. And well I..."he trailed off.

"Am I like a sister to you?" You muttered quietly. The thought of him seeing you as a sister was kind of disappointing, considering how you felt about him.

"Well..." Before he could finish, there was a knock on the door.

"Their already back from their hunt?" You furrowed your eyebrows, confused at who could be at the door.

"I don't think so. They would've called," Castiel gripped his angel blade as he crept toward the door. You stood up and took out a pistol you had hidden behind one of the old books in the library of the bunker.

As you aimed your gun up, Castiel swung open the door quickly and there was an automatic yelp of fear heard. Soon, you started to realized who that scream came from. "Max!" Your eyes widened and there was a huge smile on your face.

"Oh my gosh it's actually you," Max smiled, squeezing you into a hug as you lowered your gun. "We thought we were never going to find you."

"How did you?" You asked as you pulled away.

"Angel helped," she pointed to Angel, who had been standing not to far behind.

"Where are the others?" You asked.

"Everyone's back at home with my mom. Isn't it crazy? I have a mom!" Max gushed in excitement. "So who's the guy with the knife?"

"Oh that's Cas. He let me stay here for a while till I found you guys," you smiled, looking at Castiel, who had been oddly quiet.

"Well now that we found you, you can come home with us," Angel said.

"Uh yeah," you turned back to Castiel, hoping he'd say something. You did miss your flock, but you enjoyed your knew life with Castiel and the Winchesters.

"Go, I'll be fine," he waved off with a slight smile. You expected him to put more of a fight, but you were wrong.

Either way, you pulled him into a suffocating hug and whispered, "Thank you Cas. For everything. And tell the boys I said thank you as well."

"Will do," he hugged back.

~Time Skip~

"Cas, get your feathery ass down here now," Dean yelled out urgently. Sam and Dean had arrived at the bunker a few days later and were surprised to see you were no where to be found.

The flap of wings could be heard and a familiar blue eyed angel appeared. "What is it?" Castiel asked.

"We can't find (Y/N). Do you know where she went?" Sam asked.

"Yes," Castiel nodded.

Sam and Dean sat there, waiting for an answer and Castiel stated at them blankly. "Okay," Dean muttered, "Are you going to tell us where?"

"I can't disclose that information. All I can say is that she's with her family now and she says 'Thank you,'" Castiel explained.

"Family? But I though we were her family," Sam frowned.

Castiel simply replied with a shrug, averting their gaze. "You don't seem so happy about it either Cas. What's wrong?" Dean asked, noticing Castiel's unusually nonchalant demeanor.

"Nothing's wrong."

"You're a terrible liar," Dean pursed his lips.

Castiel sighed, "I think I was in love with her. But it's too late now so can we move on?"

"Too late? Why don't you go after her?" Sam asked.

"Because she's back with her family now. She doesn't need me."

"Cas, stop being such a wuss and go get your lady. Don't let go of someone just cause you think you're holding them back. Cause you're going to regret it the rest of your life," Dean said, "Trust me, I've been through the exact same thing."

"You really think I should?" Castiel seemed unsure.

"It can't hurt to try," Sam shrugged.

Castiel glanced back and forth between Sam and Dean, "Maybe you're right."