Disclaimer: I do not own the characters from it or any from BTVS.

This is something that just came to me. I love the Flash and am completely captivated by the new police officer on the Flash that Barry's dating this season. I enjoy writing BTVS crossovers the most, so I decided to write something that has the new officer in the know with the supernatural world because she is a vampire slayer. As Barry keeps his secret from her, she is keeping a very big one from him. I think I'm going to write a few short chapters. This isn't long, but if there's enough interest, I'll write some more.

Chapter 1: A Bloody Scene

Officer Patty Spivot was getting frustrated. The Slayer's Council had sent her to Central City to make sure all the metahumans were the result of real science and had no demon origin. She'd been an officer on the hellmouth in Cleveland for two years since Xander had decided that they needed some on the inside in the force. She and a few others had decided they'd go to the academy. It was a natural fit. When they'd sent her to Starling City, Xander had told her it could be short term. If she couldn't find any evidence of the supernatural, then they'd probably pull her in a few months.

She had finally gotten on Detective West's metahuman squad, but he was keeping something from her. She just knew it. Meeting Barry Allen, though, had changed everything. There was just something about him. He was so intelligent and sweet. There had been an instant connection between the two of them. In spite of her better judgement, she'd really begun to like him.

Then he'd lied to her. He'd told her that he was sick and disappeared for days. Even Detective West was in on the lie. Did they not realize she was more than a pretty face?

Ever since her parents had been killed by vampires when she was called as a slayer ten years ago, her life had not been her own. Willow and Xander had found her when she had been crying over her parents' dead bodies. They'd explained what was happening to her and why. She learned what was happening inside her and about her new destiny. Then they'd help her track and kill the vampires who'd killed her parents. After that, Xander took her in. He became her family. He and Willow had only been in Cleveland a few months, but they'd already established a slayer house. Buffy, the head slayer, came and trained with them. However, it was Xander and Willow who helped her channel her anger and heal from the loss of her parents. Whenever she got too low, Xander would do his Snoopy dance to make her laugh. Willow would tell her stories of their many adventures. She could say a lot in one breath. Life became bearable, but there was something always missing.

Then she met Barry. Things felt so right between them. Sometimes she felt like she was pushing him too hard. Maybe he didn't like her as much as she liked him. Since she'd spent the past decade with a babbler, she found herself taking on some babbling tendencies. It often was a turn off for most guys. Fortunately, Barry seemed to find her habit attractive. Sometimes he rambled himself. Patty thought they might be a perfect match. However, she didn't know how he'd respond when he found out about the reality of her crazy life.

But the lie... He came back and explained it away, apologizing. She kissed him back when he tried to make amends. When he took her out to dinner the next night, they'd had a good time.

"I think I really like you," Barry told her when he walked her to her door. Then his phone buzzed. She knew that he got an important message because he tensed up.

"Is everything okay?" she asked him.

"I hope so," he said. His mind raced as he debated what to say. She was Joe's partner. "Joe said there's a mangled body downtown in an alley."

"Oh. Let's go!" she said, excited to have a case. "A mangled body is probably a metahuman, right?"

Barry smiled at her. Her enthusiasm was so cute. "It's probably better if we don't arrive at the crime scene together," he told her.

Her cheeks flushed as she thought of the teasing. Cops could be the worst in that area—even worse than her sister slayers. "You're probably right. I'll run in and change and meet you there. Text me the address?" she asked.

"Sure," he said. He leaned down and placed a soft kiss on her lips. "I had a really great time."

"Me, too," she said, smiling up at him. God, he was so cute. Willow would totally approve. He was science nerd like her. Patty was more like Xander—science was cool when it led to science fiction and otherworldly things. The metahumans excited Xander as much as it did her.

She went into her house to change while Barry sped off. When he made it to the crime scene, he was sickened. The poor man had been ripped a part. It was a gory mess.

"Do we have any idea who this poor guy is?" Barry asked Joe.

"A homeless man is the prevailing theory," Joe said.

"Any idea who or what did this?" Barry asked.

"Well, we had a sharkman, so there's no telling," Joe said with a sigh.

"Patty is on her way," he said.

"You called her?" Joe asked in surprise.

"I was taking her home when I got your message. Shouldn't you be calling her? She's your partner," Barry pointed out.

"I guess it's hard for me to get used to having a partner again after what happened to Eddie," Joe said. His last partner had felt killing himself was the only way to stop his time traveling future heir. Killing himself had stopped the Reverse Flash. However, his selfless action had hurt all of them. Joe's daughter Iris especially. Barry could tell that Joe was wary of getting attached to another partner.

"Patty isn't Eddie, but she's smart and determined like he was," Barry said.

"Speaking of Patty," Joe said as he saw her approach the crime scene.

When Patty looked at the scene, her slayer senses were buzzing. There's no way a metahuman did this much damage.

After she took down her own notes and got a report from Joe, she stepped away from the scene to call Xander. "Xander, I think we might have a demon killing in Central City," she shared.

******To Be Continued******