It's very late, but here's my contribution for Day 4!

It's the continuation to my fic for Day 3, but I suppose it works as a detached one-shot as well. In that case it's just another Modern AU fic.

I don't know, I'm not as happy with this as with the last one... I just wanted this to focus on Zuko, since all my other fics so far has focused on Katara...

It's a bit shorter and sweet, though, I suppose :)

Hope you like it!

*I don't own Avatar or any of its characters!

Cobalt blue

Zuko had never been one to like bright colours. His wardrobe consisted of mainly black and dark red, occasionally white, but white wasn't really a colour, was it?

Though he had always liked blue. He supposed it was because it reminded him of his mother; blue had been her favourite colour too. She had even had one of the day rooms in their villa painted sky blue, not really to Ozai's liking. That room had been sealed shut since the day she left.

However, Zuko had a special thing for cobalt blue. He didn't know why, but there was something about the deep tint that he simply couldn't resist.

Where he now stood, on the same pier he had taken Katara to just hours ago, Zuko looked up and assessed the colour of the darkening sky. It was a darker shade of blue, but still not quite the perfect tone in his opinion.

Zuko turned his eyes down to the water in front of him. After Katara's father had told her and Sokka he was going to leave for a whole year again, Katara had asked Zuko to take her to a pier and this was the first one he could think of. He had been here once before, when his mother had still been around. Zuko supposed Katara's sudden urge to go here had something to do with a pier being her and her mother's favourite place when she was little, before her mother had died. And he understood, things he had shared with his mother were special to him too.

Zuko shook his head and ran a hand through his hair. All this about Katara's father leaving again had made him think a lot more about his own family, and that wasn't always pleasant.

However, the pier was situated in the outskirts of a town that lay half an hour away from their own. Zuko had driven Katara here on his motorcycle and they had sat down at the railings, watching the sun sink down the horizon. They had walked down to the docks and on a lamppost, they had found advertisement for a common street party in a nearby park, starting at eleven o'clock that same evening.

Deciding she could use some distraction, Katara had called Suki, who had agreed a party sounded like a good idea and told Katara to leave Sokka to her. And Suki being Suki, she managed to convince Sokka the party would help get his mind off of things.

Zuko had taken Katara back home so that she could get changed, and they agreed to meet at the pier at eleven.

It was just past eleven fifteen when Zuko heard the familiar sound of Sokka's blatant old Sedan.

Zuko turned around and saw Suki and Sokka getting out from the front seats.

When Katara stepped out from the back seat, Zuko practically gasped. The only thing he could think was: Now, that, is cobalt blue.

Katara wore a sleeveless dress that reached her just above the knees, and it was the perfect tone of blue. Her long curly hair fell freely around her shoulders, only two tiny braids pulled back from her temples.

Zuko swallowed and walked over to her with wide eyes. "You look..." He shook his head as he couldn't find any words.

Katara grinned mischievously up at him – even with heels, she was shorter than him. "I know your likes and dislikes", she said seductively.

At the back of his mind, Zuko noted that her attitude was very different from only a few hours ago. She had been serious when she had said she would try to forget about her worries just this night. And that was perfectly fine with Zuko.

He grabbed her by the waist and pulled her close, a smirk forming on his lips. "You certainly do", he said before leaning in and kissing her deeply.

"Hey, guys", came Sokka's voice from behind Zuko and he broke the kiss. Turning around, he saw that Sokka and Suki had reached the end of the pier, watching him and Katara impatiently. "Are we gonna go, or what?" Sokka continued.

Wow, Zuko mused, Sokka really wasn't his usual self, or he'd be ranting at Zuko not to grope at his sister by now. But he nonetheless let go of Katara and they caught up to the others.

Zuko and Katara's fingers entwined as the four of them continued towards the park, following the sound of the loud music pumping into the night.

As they approached the middle of the park, Zuko realized this was not a small party. There were at least two hundred persons here, drinking, laughing and dancing.

Zuko looked to Katara to see if she'd changed her mind about the party, but she just smiled widely and with excitement sparkling in her eyes, she grabbed hold of his arm and started pulling him towards the "dance floor", that really was just a large lawn.

"Come on, Zuko, dance with me!"

"I think I'm gonna go grab a drink first. But you go dance, and I'll join you later", Zuko excused himself.

Katara just shrugged and leg go of his arm. "Fine", she said and turned around to enter the "dance floor".

Sokka and Suki followed Zuko to the large table filled with drinks. Zuko wondered who had afforded all this liquor as he grabbed a beer can and took a swig.

Sokka and Suki soon left to dance after having a quick drink, and Zuko was left alone. He searched the herd of dancing people with his eyes, until he spotted a deep blue dress at the edge of the dance floor.

Zuko watched as Katara swung her hips and moved her arms around her to the beat of the music. Damn, she really was the most beautiful creature he could imagine. Though that was of course not her finest feature.

Setting his beer can down on the table behind him, Zuko left to join her.

Seeing as how she didn't seem to notice him coming up behind her, Zuko put his hands on her hips and placed a kiss on her neck.

Katara swirled around and found herself trapped in his arms. Zuko smirked down at her and she smiled back as she wrapped her arms around his neck.

Their bodies started moving together to the music, Katara's hands twisted in Zuko's hair and Zuko's hands pressed to her hip and back. They tuned everything but each other and the music out and Zuko didn't know how long they just kept dancing like this in each other's arms.

Eventually, the beat of the music picked up speed and Zuko's hand slid up Katara's side and then continued up her arm until it closed around her hand. His other hand let go of her hip and he pushed her from him slightly, twirling her in front of him.

When he pulled her back to him, he captured her mouth with his and she returned the passionate kiss.

When they broke the kiss, Katara grimaced. "You taste like beer", she said and giggled.

"How strange", Zuko replied sarcastically. "You wanna grab one too? It's getting quite hot here."

Katara nodded. "Sure", she said and they pushed past the dancing people. Reaching the drinks table, they didn't seem less surrounded by people. They both grabbed a beer can and quickly finished it. Dancing in the middle of a dance floor had built up thirst.

Zuko leaned down towards Katara for her to be able to hear his voice. "Can we go somewhere else? It's awfully crowded here."

Katara just nodded and Zuko grabbed her hand to lead the way.

As they had entered the park, Zuko had spotted a fountain to the right, but they had continued straight forward to the middle of the park. Zuko figured that should be secluded enough.

When they left the worst throng, Zuko shifted so that he walked beside Katara and wrapped an arm around her bare shoulders. "Aren't you cold?" he asked.

Katara shook her head. "No. Not now anyway", she said and intertwined her fingers with his over her shoulder. She looked up at him. "Where are we going?"

"You'll see", Zuko answered with a smile.

When they reached the fountain, Katara gasped slightly and took a few quick steps forward. All around the fountain was lanterns strapped to black metal posts and several lanterns floated on the water surface. The lights were reflected in the water beautifully. There was another couple some distance away, but other than that, they were alone.

"It's so beautiful!" Katara exclaimed.

Zuko pulled her to him, his arms wrapping around her waist. "Yes", he said and looked over her face with admiration in his eyes. "So beautiful."

Katara smiled as she understood he wasn't referring to the fountain. She gently took his face in her hands and pulled his face in, kissing him deeply.

She pulled back to look him in the eyes. "I love you", she said softly.

Zuko looked back down at her. Her eyes weren't the deep blue her dress was; they were a softer tone, more like crystalline sea blue. He felt like he could drown in them.

"I love you too, Katara", he said, as much with his eyes as with his voice.

Zuko had always had a thing for cobalt blue. Though, looking into Katara's eyes, he figured he had found a new favourite colour.