Sooo I was watching frozen and browsing the interwebs and came across this pairing. Thought I'd give it a shot. So here you go. My very own Jelsa. Hope you like it.

"Wait, what?" The boy with white hair was confused. There was another guardian… but she was in the past? And she was like him? How did they know about all this?

"Ha ha ha," the Guardian of Wonder let out a belly shaking laugh at the teen's confused face. "It was the Man in the Moon. He told us, and since she will be like you, you are being sent to retrieve her." Before Jack could ask more questions, Santa held up a hand to halt the sound. "He's the Man in the Moon. He'll find a way to send you back when you're both ready to come back."

"It's both or neither, Jack. It's serious here." Bunnymund hopped forward and crossed his arms, treating Jack with his famous stern gaze.

"What?! Why am I being sent then? I'm the Guardian of FUN. Not seriousness! I can't be serious! That's not a thing I can do!"

"Well, you'll have to learn, Jack. He won't send anybody else back to get her, and he won't send you back against your will because you might fail. Jack, please consider it. We need you both. She's going to be a new Guardian. She might help the adults to believe in us more. Please, Jack." He peered at the assembled Guardian with his icy blue eyes, leaning on the hooked staff. Maybe more people would believe in him in the past. He cast one last look at Sandy to see what he thought. He looked close to dozing off, but he sent an encouraging smile and made a heart above his head. A heart? Love? She would be the Guardian of Love? He turned back to Santa.

"Alright."

There must've been a mistake. This was a palace. A rather large palace. How in the world was he supposed to find a single girl in this monstrosity when he didn't even know what she looked like? Just as he was about to move on from the royal hallway he heard the rustling of blankets coming from the room of the two little girls, and then he heard one of the girls talking.

"C'mon Elsa. Wake up. Wake up. Wake up!" He chuckled at the impatience of the littler sister as she sat on her older, blonder sister.

"The sky's awake, so I'm awake, and that means we have to play!" He moved through the door in time to see the red-headed girl flop herself down, spread eagle on top of her tolerant sister. How he loved the logic of a five-year-old.

"Go play by yourself, Anna." He saw the girl roll off and land on the floor away from her older sister. Concerned he walked over to where she was, just in time to see her eyes light up with mischievousness and climb back onto the tall bed. Peeling her sister's eye open, she asked a question.

"Do you want to build a snowman?" Well that got Elsa out of bed. The little one, Anna, was dragging her down the stairs while wearing boots, even though Jack was pretty sure it was still summer outside. We followed them through the halls, and into what looked like a ballroom; he just couldn't resist the allure of fun.

"Do the magic! Do the magic!" The magic? And then Elsa threw her hands up into the air and it was snowing. She stomped her foot down and a thin layer of ice covered the floor. She was like him! She had his same sort of magic! This was the girl he was looking for! But how could she possibly by a Guardian when she was still so young? Dimly, he was aware of the two building a snowman and Elsa dubbing him Olaf, proclaiming that he liked warm hugs. He was too involved in his own mind to really pay attention to the two of them, just enough so that he would move out of the way when Anna and Olaf danced past him. He should've been paying more attention. If he had, maybe he could've boosted Elsa's powers. If he had, maybe he could've saved Anna before Elsa accidentally struck her with her powers. But he wasn't, so he didn't. All he could do was phase through the door and leave a trail of ice from the room up to their parents' room, curling it around the father's head so that he woke up. He hoped the trail would be enough. That Anna would be ok.

He flew alongside the horses helplessly, knowing there was absolutely nothing he could do to help the little one.

After the trolls had saved Anna, Elsa was isolated, but Jack was always with her, even if she couldn't see him, he was there. He was there as her sister tried again and again to get her sister out of her room. To go play and have fun. Every day he hoped that she would, but he knew she wouldn't. Some days she came close to leaving the isolation of her room. And some days she was just too scared to even go close to the door. Her solace was in reading books. Often times he'd go searching for a book that had him in it, so that she could read of him and see that he existed. That she wasn't alone, but everything was in a different language. He could understand them when they spoke, but reading what they wrote was an entirely different story. It was when Anna came to her door to talk to her one last time, the day of her parents' funeral that Jack finally got an idea. He froze the window so it looked like a bunny surrounded by eggs. When Elsa woke up, she saw the picture and marveled at it.

"The… Easter Bunny? But I didn't do that. Did I?" Jack smiled and wiped it away, replacing the picture with that of an evergreen tree with packages underneath of it, a large man with a beard standing next to it.

"Santa Claus! Who's there? Who's doing this?" She looked around the room, but her eyes slid right over Jack. Would it be enough? He gave her one more picture, that of an open book. He had seen her reading a book before that was illustrated. There had been pictures of Santa and Bunnymund and Toothiana. She'd closed it before she'd made it to him, if he was even in the book. Comprehension seemed to dawn on the girl and she ran to the bell pull that summoned her staff. Quickly, they appeared.

"Yes, Princess Elsa?"

"Will you fetch me the book about the Guardians of children please? I would like to look at it again." She spoke through the door, a protocol common between her and others in the palace although she refused to speak to her sister at length. She just couldn't take speaking to her without being able to see her, especially now.

"Of course your majesty." She heard the retreating footsteps and she began to pace the floor. He sat on her bed and hoped that she'd be able to see him soon. Soon a book was slid beneath the door. She flipped through the pages until she found one with a blue drawing. It depicted only a snowflake.

"Jack. Jack Frost. You're real? You're all real?" She whirled around the room trying to see him, but she still couldn't. Carefully he walked up to her and whispered one word.

"Believe."

"Believe? Believe in you? Ok. Ok, Jack. I can believe in you. I believe in Jack Frost. I really, really do. Jack? Are you there?" She had closed her eyes in the process, whispering instead of speaking.

"Over here. If you can hear me, that is." Her head whipped around and her eyes flew open so that they could lock with his. He nearly fell off the edge of her bed in surprise.

"You can see me? You can really see me?" He approached her cautiously, but she stood locked in position, eyes trained to his.

"Yes… Jack… you aren't quite what I expected." He laughed as she poked his nose experimentally, taking her hand back as if he had shocked her.

"What were you expecting?" He could tell from her blush that she hadn't thought he'd be around her age, at least, in appearances.

"Not… Do you change forms for different people? To relate to them better?" She was circling him, and he was trying not to laugh too much as he leaned against his hooked staff.

"Don't think so. You're only really the second person to see me, Elsa. You have to believe in me to see me. Contrary to popular belief, seeing isn't believing, believing is seeing. Not many people even know I exist, let alone believe in me." He couldn't stop grinning like a mad man as she finally came to as top in front of him, smiling as well.

"I can't hurt you with my powers, can I?"

"No, Elsa. You can't hurt me with your powers. I promise. I'm safe. I won't hurt you with my powers either. I think." He winked at his last words, but she bit her lip in nervousness. "What is it?"

"Can I give you a hug? I haven't…" She stopped talking and looked down at the ground. Without leaving her time to retract the request, he dropped his staff and enfolded her inside his arms. She sighed and nestled herself deeper into him, her arms folded up between their two chests. He rested his head on the top of hers.

"You can have always have a hug, Elsa."

Over the next three years he kept her company in the lonely and long hours of the day, sometimes going to check on Anna so that Elsa knew what sort of trouble she was getting into. Most of the time he played games with Elsa in her room, avoiding their powers upon her request. She said she needed to learn how to control them. Make sure nobody knew about them. He gave her fun when she wasn't completely overrun with anxiety and fear about becoming the queen of Arendelle. Fear was enemy. He always wondered if she knew that fear could include her own. They spent hours upon hours talking, and at some point she taught her how to read her books, and then they spent hours reading in the presence of each other, Elsa flipping the pages for Jack when he needed it. It wasn't always the most fun for Jack, but he definitely enjoyed being around her.

"Wait, how long have you been here? I mean, before I couldn't see you." It was the day before her coronation and she was pacing the floor with her nerves, fingertips on her temples.

"Well, you see…"

"Jack." The warning tone in her voice was enough for him to confess without her stopping and freezing him with her icy eyes.

"The last night Anna knew about your powers. That's when I found you." He still hadn't told her that he was technically from the future and that he was supposed to bring her back there whenever they were both ready. She didn't know that she was going to be a Guardian herself.

"You've been here that long?!" She was yelling at him now. And he cowered back onto her mattress.

"Yes." He was hiding under his own arms now, shielding himself in any way possible from her wrath.

"Why?" Wait a minute, that wasn't a yell. That was only a whisper; he peered out at her and saw Elsa in a crumpled heap on the floor, her head held in her hands. Immediately he flew to her side and eased an arm around her shoulder.

"There are more reasons than one, which I'll tell you later, but the one that increased? You needed somebody here for you and I wanted to be that person. You were so broken and I wanted to fix you. You intrigued me. I'd never met anybody who was different like I was, even if you were born this way and I wasn't."

"You weren't born this way?" Her head was brought up to look at his chest.

"No. I used to be normal; my hair and eyes used to be brown, although my hair was always been this messy." He flicked a piece out of his eyes and she reached up to feel it.

"What happened?"

"I went out to play with my little sister one day on the lake. We thought it was frozen solid and for the most part it was, but then she went on some thin ice. I got her off of it by making it into a game, but I fell through. I woke up later like this, with my staff. I became the Guardian of Fun." Now, he was looking down at the ground. Thinking about his sister was always hard to do. The time he had spent in the ice… She was gone now. She actually probably wasn't even born yet technically. Oh, this time travel thing was hurting his head. He felt a soft hand cup his cheek. He eyes fought their way up until they made it to her eyes.

"I'm so sorry Jack." He peered into his eyes and they both seemed to look better to each other, more relaxed. "Wait, were you in here the entire time?" He felt his cheeks heat up in a blush. He couldn't remember the last time he'd blushed.

"For the most part, yes, but sometimes I would go to check on Anna. I never watched you change and I left for the night like I do now."

"Where do you go at night?"

"There's a ledge on a mountain nearby. It's low enough so that it doesn't get totally cold in the middle of winter and it's nice in the summer. I'll show you if you ever get out of here." He shoved her shoulder playfully, but she only looked away and blushed in response.

"You can… you can stay in here during the winter. Just… lay on the couch over there. That should be fine." He couldn't keep the grin from his face.

He watched helplessly as she paced the floor in her ice palace. Things had been going so well at the coronation party and then Anna had announced her engagement, stressing Elsa more than she already was. Without the gloves of course her powers would be shown to the people. He'd followed her as she ran away, scared of her peoples' fear and how they could turn against her. He'd been glad when she'd finally used her powers to their full extent, giving her ideas about how to design her very own ice palace. He hadn't helped her out at all, per her request, and now she knew that Arendelle was frozen and he was pretty sure she had accidentally frozen Anna's heart, but she was too stressed to listen to him. He could only sit helplessly as she repeated her mantra again and again, trying to cover up herself.

He watched helplessly as she strained against the chains holding her to floor. This was quickly spiraling out of control. She had nearly killed two men (they had been trying to kill her in her defense), she was now trapped in her own dungeons, and she wasn't responding to anything he was saying. Did she still believe in him?

"Elsa. Elsa, please. Talk to me." He reached forward and touched her cheek, but his hand only went through her face. "No…" He crumpled to the ground in defeat. What could he do now? She didn't believe in him. Folding in on himself, he sat on the cold ground waiting for something to happen. Hours and hours passed before something did.

"…Jack? Why are you sitting there like that?" Elsa was looking at him worriedly, perched on the edge of her bed.

"You see me?"

"Of course I do." He was too relieved to speak. Instead, he flew to her side and buried his head in her lap. "Jack, what happened?"

"You couldn't see me earlier. You didn't believe in me, and I didn't know what to do, so I sat there. I'm so sorry Elsa. I'll try to get you out of here." Her metal cuffs were already accumulating ice on the outside.

"Oh Jack…" There was something about metal and ice… He placed his hands on her cuffs and began to help her freeze them. Weakening the metal so that he could bend it away from her hands. They heard the voice approaching outside and the walls and door began to immediately freeze, the walls bursting out and the door bursting in, allowing people to enter a now empty room.

"We are never closing them again." He smiled as Elsa began to skate with her sister, Olaf the snowman helping them as they went, just like when they were little. He could finally appreciate Elsa's new look. She was downright beautiful as she smiled and laughed, for once comfortable in her own skin. He hated to have to talk to her and possibly ruin such a perfect scene.

Phew. Done! Only the first chapter though :P Shoudn't be a long fic though. Probably just a couple chapters and they won't always be this long.