Summary: AU. Castiel joins Lawrence High and finds himself falling for the sister of Dean's girlfriend Jo. When he wants to ask her out, he finds out that his love 'em and leave 'em style isn't going to get him anywhere and decides to make a change. Please R&R!

Disclaimer: I don't own Supernatural or its characters. I only own Faith Harvelle. I don't own the lyrics used in this chapter either.

A/N: Okay, the lyrics match both Faith and Castiel's points of view in certain ways throughout the fic. I really hope you enjoy this and I know it's another OC, but I've come across my own trust issues recently and by doing this fic I'm letting out what I want my next boyfriend to be like, and what I wish all men could be like with regards to trust issues and emotional baggage.

Hope you enjoy!

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Trust Issues

Chapter One

I could always stay and work it out
Wondering if you still wanted me
But there are so many things to doubt
1 2 3 count 1 2 3
Think that for a moment you were mine
I know that you saw what we could be
But then you went and changed your mind
1 2 3 yeah 1 2 3
1 2 3 yeah 1 2 3
Now you know
Now you know how I feel
And I won't back down...

Castiel Novak had been attending Lawrence High for a month, and was friends with Dean Winchester, Jo Harvelle, Jo's strawberry blonde twin Faith, Chuck Shurley, Ruby Masters, Becky Rosen, the English cousins Crowley and Bela Talbot, and Gabriel Milton. Dean and Jo were dating, Chuck and Becky were dating, Crowley was trying to chat up Ruby while Gabriel and Bela were friends with benefits. What a great group of people to hang out with.

But damn, did Castiel have it bad for Faith. She was so beautiful, just like her sister Jo, but there was something about her that just drew Castiel to her. Maybe it was just the way he really wanted to understand her more and to find out why she had such sadness in her eyes. He wanted to clear things with Jo before he asked her out, because he felt it was the decent thing to do. Normally, he just takes a girl back to his house, fucks her and lets her get on with her life. A lot of the girls at Lawrence High were into that sort of thing, and what with Castiel and his beautiful blue eyes, and constant sex hair, the cheerleaders and other whores in the year were all over him. But Faith just stood out a mile. She had the beauty of an angel compared to every other girl in school.

"Cas..." Jo said with a warning tone as she stood with him by his car on the Friday afternoon, "There is no way on this earth am I letting you near my sister unless your feelings are so deep that you want a real relationship with her."

Castiel recoiled slightly, watching as sadness filled Jo's eyes. Jo never looked sad. She normally had a smile on her face and sparkling eyes, especially when she looked at Dean, so to see this was really alien to him.

"She's really...She's unstable right now..." She said, "One of the boys here took her virginity a couple of months ago and just ignored her after that...And she really, really loved the guy. He moved away and she's lost her trust in men, so...There's a lot of emotional baggage on top of that and unless you're serious about being with her, I'd rather you stayed away."

"Jo..." He began, "I know I normally leave the girls I've been with, but Faith...She's not like the other girls here. She's so much more than the other girls here, y'know? I want to try and have a real relationship with her which is why I came to you. I know how much you care about her, and I know my dating methods are a little...slutty...but I really do care about her."

"You break her heart, Novak and I'll kill you." Jo said darkly, "If you're not getting anywhere within a couple of weeks it's because you have to prove to her that you're not a typical man. She knows what you get up to, so she might not even say yes."

"Can I come round tonight to speak to her?" Castiel asked, earning a nod from the older Harvelle twin, "Eight?"

"Sure." Jo replied, "Really, Cas, you need to be prepared to listen to her problems and help her work out her issues because she has a lot of them."

Castiel nodded and Jo headed away to Dean's '67 Chevy Impala, where Dean and Faith were waiting for her. Dean often took Jo and Faith to and from school, and today was no exception. As the group climbed into the car, Faith watched Castiel curiously and then sat quietly, barely speaking on the journey home.

She didn't talk much anymore. Not after what had happened to her. She used to talk all the time, but since this had happened she'd become a lot more reserved and quiet. The same boy who'd done that to her had been with her three years previously and broken her heart then. She thought he'd grown up, but he hadn't. He was just the same as he'd always been, but she didn't realise until he took her virginity and left her there bleeding on the bed.

Her parents, Ellen and Bill had gone crazy when they'd found out, and Bill had gone to kill the guy only to find him gone from Lawrence. That was the last thing that anyone needed, and Ellen decided to focus more on taking care of Faith who stopped sleeping, eating and taking care of herself. She missed a week of school while Ellen cared for her and tried to get her back into the swing of things, and Jo knew that if Faith ever went through anything like that again, it would probably send her into a downward spiral.

Jo sat waiting in her room for the sound of Castiel's car.

She'd almost told Faith that he was coming, but she knew to just let things run their course. Dean rubbed her back as he joined her on the window seat, pressing a kiss to her cotton clad shoulder. He'd always thought she looked cute in her pink plaid pyjamas. He'd bought her them for Christmas the previous year to mark their six month anniversary and he'd won her heart with them.

"He'll be here, darlin'." He promised, "Really, if he's serious, which given the way he talks about her, he is, he'll turn up, okay?"

And as if by magic, Castiel's car came around the corner and pulled up outside the Harvelle home.

"See." Dean said, "You wanna go eavesdrop like naughty kids?"

"No..." Jo replied, turning and kissing his lips before going towards the door and locking it, proceeding to edge towards the bed and unbutton her pyjama top, "I had something else naughty in mind."

Dean grinned and pulled his t-shirt off, moving towards Jo and lowering her onto the bed, his lips attached to hers the whole way.

Castiel, meanwhile, stood on the porch, finally knocking on the door and trying to go over what he had to say to Faith. Then she appeared as the door opened, wearing a beautiful baby blue sweater and her soft blue jeans which she sometimes wore for school.

"Hey, Faith..." He said softly, taking in the confusion on her face, "Can I talk to you...? Please? I have something I want to tell you..."

"Sure..." She said quietly, stepping aside to let him in, "Mom and Dad are working the bar tonight, and Dean and Jo are upstairs. Do you want a drink?"

"Um...Yes...Thanks." He replied, watching as she closed the door and headed through the open plan living room and kitchen to the refrigerator.

"Take a seat."

He sat on the sofa and watched her return with two sodas, smiling and thanking her as she placed them on the coffee table. She turned off the TV, turning her attention fully to Castiel to listen to what he had to say. And this is where Jo and Faith differed, he realised. Jo wasn't one to show much emotion and to really pay attention to everything someone said. She often needed a background distraction and found that the TV made a great one, but Faith was open to listen and often fully showed what she was feeling. They were polar opposites emotionally, and in some cases it was good and others it wasn't. She looked into his eyes and took a deep breath.

"So..." She began, opening her soda, "What do you need to tell me?"

-TBC-

Hope you enjoyed!

Thanks reading so far!

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