Anon asked: Uhh, that panel reminded me to ask you about Zucest dry humping headcanons.
It'd start when they're young. They'd be practicing their firebending together - aka Azula would be using Zuko as a punching bag - and eventually Zuko would end up on the ground and Azula would sit on his lap and maybe keep his hands pinned to the ground so she can taunt him.
The thing is, since Zuko is struggling to free himself, Azula is moving on his lap a lot… and it's weirdly pleasant. It only lasts for a little while before she lets him go. The next day, everything happens pretty much the same way, with it being just a way to taunt him, and just becomes as natural to them as everything else she does to annoy him, the only difference being that they both know they actually like it.
And then puberty happens. Zuko gets super aroused by having his sister on top of him, rubbing up against him. He is embarrassed and knows it's wrong, but it's too good and he doesn't want to stop. Azula is confused, but Zuko assures her nothing is wrong and tells her to go on. And she does, even though it feels weird to rub up against now that he is getting hard and his cock is twitching. Then it goes from weird to reaaaally good and Azula starts getting wet. This time it doesn't last for just a few seconds. He grabs her hips, they're both blushing, panting for air, and they just keep rubbing up against each other until they hear the sound of people talking nearby and they just get away from each other and run to their rooms.
They spend a few days without even looking at each other, then one nigh Azula goes to his room and asks if they can do it again. As they grow up, it goes from just dry humping, to full on making out and groping each other. They don't get to go all the way because Zuko gets banished. Once Zuko helps her take over Ba Sing Se however…