By Dave Mycock Instincts

Disclaimer: I do not own Buffy or any of the other characters. They belong to Joss Whedon.

Paring: Xander/Tara

Summary: Faith didn't turn evil in season three and helped defeat the mayor; she joins Xander on his road trip however neither returns in season 4 but decide to stay in L.A. whilst their Xander begins to undergo a change. His senses become acute and he becomes much stronger than ever before, he also begins to act more on his instincts than anything else. Back in Sunnydale Willow meets Tara and gets her involved in the slaying and soon they both fall in love with each other however she seems to be hiding something from her friends.

*****

Xander followed Tara back into the main shop to find Willow still at the table looking at her laptop screen almost in amazement. He sensed Tara's slight unease and excitement mixed together, he couldn't help but wonder what his old friend had found.

"So, what you got Red?" Faith asked breaking the silence.

"Xander, Tara, you might wanna sit down for this," Willow began. Her voice seemed unbalanced, somewhere between joy and sadness.

"Go on Wills," Xander said as he and Tara sat facing her

"I've been going through your files as Giles and Faith suggested and I found you are both adopted. I ran a program to search for mentions of your real family. Xander I'm afraid both of your real parents are dead," Willow started.

Xander flinched as Willow told him the news, he felt a burning sadness run through him. He would never know who his parents were and why they had put him up for adoption. He smiled slightly as he felt Tara take his hand under the table, away from where Willow and the others could see.

"But," Willow began again. Xander instantly locked his eyes on her. "Xander, you have a younger sister," she told him.

Xander's eyes grew wide as Willow continued. He had a younger sister. somewhere. out there. He noticed Tara smiling at him and he knew she could sense the wild excitement that was running through his entire body.

"Do you know where she is, what her condition is?" Xander asked as he fought to control his emotions and an urge to go and find his missing sister right then and there.

"She's in California from what I can tell; she's been moving quite a bit. It's like she is running from something," Willow answered.

Xander's eyes narrowed at that; if something was chasing his sister then once he found her, he would deal with whatever this threat was. He could feel his instincts raging to go find his sister and then to destroy the threat whatever it was.

"Giles, those demons that destroyed the tribe, do they still exist?" he asked, his voice dangerously low.

"I believe so, and before you ask, I do believe it is possible that they could still be looking for descendants of the tribe," Giles said, anticipating Xander's train of thought.

"Where is she now?" he asked

"She checked into a hotel in LA this morning," Willow replied.

"I've gotta go and get her before whatever it is chasing her finds her," Xander said standing up

"Hold on Xan," Faith said, stepping toward her friend. "What about Tara's side?" Faith asked.

"From the records, only her mother is still alive and, like Xander's sister, she seems to be running from something," Willow answered "The last record I have is dated from last month; she was in LA for a few days, that's it," she added.

"It's possible she felt either Xander's or Tara's presence and is on her way here," Giles said stepping back into the conversation.

"I hope so," Tara said standing up; her own instincts coming alive urging her to find her mother and help protect her.

"Willow, what Hotel was my sister staying at?" Xander asked.

Buffy could see the determined look in both Xander and Tara's eyes. Both wanted to find their missing family members. She could tell nothing was going to either convince them or stop them from going.

"It's a small hotel called the Eagle," Willow told her friend.

"Ok, I'll be back tomorrow, hopefully my sister. If your mom is still in LA, Tara, I'll most likely sense her. I'll bring her back too," Xander said as he headed for the door.

"Hey Xan, I'm coming too," Faith said following her friend.

"And so am I," Tara said, intending to follow only to be stopped by the look in Xander's eyes. She instantly knew he wanted her to stay and explain to the others, especially Willow, what they were. She nodded in understanding and gave him a small smile before he left, followed closely by Faith.