I don't own Supernatural or BtVs.

Author's Note: Dawn Summer's is Dean and Sam's little sister. John sent her away to live with Joyce so the demon wouldn't go after her. Story takes place 1st season of Supernatural and the end of 5th season of Buffy. Buffy never came back . John sent Dean to get Dawn and went to get Sam from Stanford.

Dean had gone to pick up his little sister in Sunnydale, California. He couldn't believe how much she had grown. She was 15 and that meant boys. Boys that he would kill if they looked at her. She hadn't said that much since he got her and he didn't blame her. She kept getting shifted around from home to home. It wasn't fair for her. He had learned that her half sister had died 4 months ago. When he came to get her she seemed eager to leave. Now he was driving to Stanford to get Sam. They needed to be a family again.

Sam was sleeping when he heard a noise. He looked over at Jess and saw that she was sound asleep. She never could hold her liquir. That's what he loved about her. He got up to follow the noise. Whoever it was they weren't to good at sneaking in. He caught a shadow and tackeld it.

"Your out of shape there little brother." Dean said panting.

"DEAN?" Sam said shocked. They rolled again.

"Maybe not." Dean said.

Sam helped him up. "What are you doing here?"

"I was in the neighborhood." which wasn't a complete lie. "Thought I'd stop by for a beer."

"Sam, everything okay?" Jess asked.

"Everything's fine." He called. "What the hell are you doing here?"

"I needed to talk to you."

"Phone?"

"If I'd called would you have picked up?"

Jess came in. "Jess, this is Dean." Sam said.

"Dean? Your brother Dean?" She asked in awe finally meeting a member of his family.

"You know I love the smurfs." Dean said looking at her night shirt.

"Let me go change." She said.

"No, no. Wouldn't dream of it." Dean said flirting.

"I'll be back." Jess said.

"No." Sam said. "Whatever you have to say you can say in front of her."

"Dad's on a hunting trip. He hasn't been home in a few days." Dean said.

Sam just looked at him.

He followed Dean to his car. "Dad always come's back, Dean."

"Yeah he does but he usually at least calls to check in. He hasn't done that." Dean said as they reached the impala.

Sam saw someone in the passenger seat. "You got a new girlfriend?" Sam drawled.

"No smartass. It's Dawn."

Sam's face fell. "She's here?" He asked shocked.

"Yeah I went and got her then drove here. Listen Sam, Something's big is happening and I know dad knows that's why he disappeared." Dean opened his trunk and pulled out John's journal.

"Dad never leaves withou that." Sam stated.

"In here he wrote if he never came home to go get Dawn. The last place he was at was Jericho, California."

"Dean, I can't just pack up and leave." Sam said.

"Why not?"

"I have an interview Monday."

"Job interview? Skip it?"

"Not that kind of interview."

"Oh. Sam just come with me for the weekened. I promise to have you back Sunday night."

"You don't need my help to find dad."

"No I don't, but I don't want to do it alone with Dawn. She's still learning. If not for me and dad then do it for her."

The next day Dean stopped at a gas station.

"Dude, you seriously need to update your music." Sam said looking through the box.

"That's what I said." Dawn replied.

"What's wrong with it?" Dean asked.

"Number one there tapes and two? It's the greatest hits of the mullet rock."

"House rules Sammy." Dean said getting in. "Driver picks the music-"

"Shotgun shuts his cake hole." Dawn finished rolling her eyes.

Dean drove to the crime scene.

"Wait in the car." Dean told Dawn.

"Yes sir!" She said in military voice.

Sam laughed.

"Shut it dude." Dean said. He opened the glove compartment and pulled out fake i.d's. Sam looked at him in shock. "What?" He said getting out of the car.

Dawn waited for them to get back as usual. She couldn't do anything beside's go insane with Dean's music. 10 minutes later they came back.

"Well?" She asked.

"Looks like Woman in White." Dean said getting excited.

"Woman in White? Are you kidding?"

"What? You've hunted demon's and vampires." Dean said.

"But still. We're talking about the Woman in White! The legend!"

"Yeah so?" Dean asked driving to town.

"It's just-"

"Dawn, after everything you've seen you shouldn't be so shocked." Dean said.

Dean pulled over and they all got out. "Why don't we split up?" Dean said.

"Your going to let Dawn go alone?" Sam asked shocked.

"Dude I'm 15. I can talk to people." She said in defense mode.

"Dawn, 20 minutes or I come looking for you." Dean said.

"Yes, pa." She said and they went in different directions.

"Pa?" Sam asked.

"She use's it when she's annoyed with me." Dean explained.

"Think that's her?" Sam pointed.

"Putting up flyers is a dead giveaway."

"So it is Woman in White doing it." Sam said 20 minutes later.

"We just need to find out who she was." Dean said as they reached the car. "Where the hell is Dawn?"

"Dean." Sam pointed.

She was talking to a guy about 18. Dean could tell they were if flirt mode. "I'm going to kill him." Dean said starting to walk forward.

Sam whistled. Dawn turned around and saw Dean looking pissed.

"Thanks for the pep talk." She said.

"Can't I at least have your number?" The guy asked.

"If you had it my brother would kill you. Thanks!" She ran to the guys.

"What in the hell was that?" Dean demanded as she got in the car.

"Getting information."

"That guy was jail bait." Sam said getting in.

"I got information okay? It is Woman in White doing it." She said.

"We could have told you that." Dean said rolling his eyes. He started up the car and drove to the local library.

So what do you think? I know this has been done before but I wanted to put Dawn in the mix.