Lilac

Disclaimer: Having (bought the t-shirt) pledged my life to the Night's Watch, I am not permitted to hold any lands, wear any crown, win any glory, or own A:tLA

"I literally cannot trust you two to do anything!" Sokka howled, glaring at his sister and her boyfriend as they both stood sheepishly in the middle of his apartment kitchen, covered in paint. Behind him, Suki was shaking with silent laughter.

"The only reason I asked you two to help decorate, was because Aang's out of town, Toph's blind, and I wanted to take Suki out for a nice meal," Sokka continued ranting. "And I stupidly, stupidly thought to myself 'hey, my little sister and my best friend who's also her boyfriend are gonna be left in my apartment alone, but nothing bad's gonna happen! After all, it's just decorating!' But no! Look at yourselves!"

"It's not as bad as you're making it out to be Sokka!" Katara protested, as Suki let out several loud snorts.

"Not as bad-!" Sokka's voice rose to a shriek. "It's exactly as bad as I'm making it out to be! I just-aaaargh!" He threw his hands up in the air, and stalked into his room.

Katara and Zuko exchanged looks, while Suki continued sniggering, and the sound of muffled screeching began to reach their ears.

"Suki," Zuko mumbled, rubbing his neck. "It's…it's not as bad as he's making it out to be…is it?"

"Of course not!" Katara snapped before Suki could answer. "It's just Sokka exaggerating, as usual. You know what he's like."

"Noooo," Suki hiccupped. "Not as much as he usually does."

"W-what?"

"Hmm, getting flashbacks to when you first started liking each other, and we had to explain everything to you," Suki muttered. "Ahem. Let me set it out for you. Sokka leaves you alone in his apartment, with the orders of decorating as much as you can, and no funny stuff. He comes back to find three walls with paint on them, the rest on you, and obvious evidence that you two have been making out in here while he's been gone. This starting to make sense now?"

"What obvious evidence?" Zuko didn't bother to deny her theories; Suki was like a bloodhound when it came to sniffing out bullshit.

Suki rolled her eyes. "Have either of you looked in a mirror lately?"

Katara frowned. "No. Why would we?"

With an exaggerated sigh, Suki rustled through one of the drawers for Sokka's, sorry, her hand mirror ("I need to check if my wolf-tail looks alright, Suki! I can't go out looking less than perfect!"), and brought it over to them.

"Katara, you're covered in red paint. Zuko, you're covered in blue paint. What do you get when you mix red and blue?"

Beneath the paint, Katara and Zuko's cheeks reddened as they took in their appearances; their faces and necks spattered with incriminating patches of lilac.