Sam was sitting, cleaning a gun in the library, when someone knocked on the front door.

He grabbed his gun, put the one he was cleaning down, and opened the door up to a teen with green eyes.

“Uh, hi.” She said, shifting her weight nervously.

“Hi.” Sam said, keeping his guard up.

“My name’s Hanna Marten. Is Dean Winchester here? I need to talk with him.”

“Why do you need to talk with him?”

She rolled her eyes.

“That’s the tenth time someone has asked me today. He’s my father.”

Sam’s mouth dropped open, and he noticed things about her that he hadn’t noticed before. The green eyes, sandy hair, even the flannel and the Bob Seger t-shirt reminded him of his brother. Could music taste be genetic? The thing that convinced him though, was the way she held herself. It was just so Dean.

“Listen dude, does he live here or not? Cause if not, I need to go.”

“Uh yeah, sorry. I’ll go get him. I’m Sam, Dean’s brother. Do you want to come in?”

She shook her head and shifted again.

“No thanks.”

“Ok, I’ll go get him.”

He turned and headed to Cas and Dean’s room and knocked on the door.

Dean answered and Sam dragged him toward the front door.

“Ok Dude, what the hell? Cas was almost asleep!” Dean yelled at his younger brother, prying his hand away.

“Dean, this is Hanna Marten.”

Dean looked at her for a second and looked back at Sam.

“Ok, so?”

“You’re Dean? He’s Dean Winchester?”

Sam nodded.

“Dean Winchester, I’m your daughter.”

Dean laughed.

“Nice one, kid. Did Sammy put you up to this?”

“No Dean, I did not.” Sam glared at him, but Dean rolled his eyes.

“Do you need a ride home?”

She shifted again, looking like she was either going to bolt or start crying.

“Uh, not exactly. My mom died in a fire about a year and a half ago.”

Dean and Sam both went rigid.

“I’m here because I kinda need a place to stay, because my aunt found out I like girls and kicked me out, and um, well, your name is on the birth certificate. And My mom’s name was Lauren Marten.”

“I- oh god, I think I’m gonna be sick. First Cas, and now this? Oh god, Cas.” Dean backed into the house.

“Can I?” She asked, and Sam nodded.

She took a deep breath and stepped in.

“Your mom,” Dean started, massaging his forehead. “I remember her. Her favorite song was Free bird. She almost always had it on. I’m, um sorry for your loss.”

“Please don’t say that. Everyone says that.”

“Oh, sorry kid- err Hanna?”

She nodded, shifting her weight again.

“Can I stay here for a few months? Just until I turn eighteen, please?” Hanna asked, looking up at him with the tiniest glimmer of hope in her eyes.

“I’m sor-“

“Dean, go get Cas.” Sam told him gently.

Dean started to protest, but Sam stopped him. “Now, Dean! Meet me in the kitchen. Hanna? Do you want anything? Pbj? Water?”

She bit her lip, and shook her head.

“Ok, uh… ask if you need anything, you can sit down wherever you want, and feel free to read anything on those shelves, just don’t pick anything up off of that one. We don’t want you to be cursed accidentally, or something.”

“Is that a joke?”

“Unfortunately, no. I’m completely serious.” Said Sam, walking into the kitchen.

•••

“Cas? Are you up? I need to tell you something.” Dean said, pinching the bridge of his nose between his finger and thumb.

Cas sat up and stretched.

“Hello Dean, is everything ok?”

“No, not really. Cas, I just found out I have a kid.”

“What?” Cas said, tilting her head.

“I have a child. A daughter, Cas.”

“Is she here? I want to meet her.” She said, getting out of the bed, and opening the door.

“Cas-“

“Dean, I want to meet your daughter.” She told him firmly, turning to him.

“She’s in the library.” Dean conceded, hanging his head. “I’m sorry. I didn’t mean for this to happen.”

“You’re forgiven.”

“Cas, it’s not that easy, you can’t jus-“

“I’ve forgiven you.” She said, walking away.

“Cas? Castiel? My best friend? My angel? Love of my life? I’m sorry this happened.”

“Dean, For the last time! I’ve already forgiven you!”

“I didn’t have any idea she even existed!”

Cas turned on Dean, and kissed him.

“I know, you ass! You don’t have to explain, or keep apologizing to me. I trust you.”

“You’re amazing, you know that, Angel?”

“I do, Human. Now shut up and let me meet your daughter!”

“Ok.” He said, grabbing her hand.

Cas smiled, and they walked down the rest of the hall together.

•••

“Who are you people?” Hanna asked, holding up a book on Djinn.

Dean winced.

Damn it, Sammy.

“You know those scary stories, legends, and folktales? The ones with monsters, ghosts, and demons? We’re the people who kill the monsters.” Sam said, walking into the room.

“Right.”

“They are telling the truth.” Cas said, frowning slightly.

“And you are…?”

“Hanna, this is Cas. Castiel, my fiancée. Cas this is Hanna, my daughter.” Dean said gently.

They stood there uncomfortably for a minute, before Sam suggested that he, Dean, and Cas talk in the kitchen. Cas nodded, and Dean let out a breath he didn’t realize he’d been holding in.

Cas grabbed his hand and squeezed it.

“Ok,” Sam said, jumping into action the second they were in the kitchen. “Dean, she’s your daughter. You get the biggest vote on this.”

“Hold up, Sam. Cas? How do you feel about this? About her living with us? About any of it?”

“Dean, she’s your daughter and she needs a place to stay. She should stay here.”

“Are you sure?”

“Yes!” Cas yelled, and Sam winced.

Dean stepped closer, but Cas backed away.

“Cas-“

She stormed out of the room, tears falling heavily.

•••

“Cas? It’s me. Are you ok?” Dean asked through the door.

“Yeah, ‘m fine, Dean.” Cas replied, her voice sounded hoarse, and Dean sighed.

“Cas, I know you aren’t. Can I come in?” He asked.

He heard the bed squeak softly and a second later, the door opened and Cas hugged him.

“I’m sorry, Dean, I don’t know why I left like that.” She half whispered.

“It’s ok, Cas. It’s fine, baby, it’s ok.” He said, petting her hair softly.

“I really do want her to stay here, with us.” Cas said, words muffled by Dean’s chest.

He pulled away just enough to lock eyes with her.

Do you really? He asked silently.

She nodded slowly, not breaking eye contact for a second.

Dean’s worried expression shifted into a giant smile, and he pulled Cas closer again, kissing her gently.