Zuko should have known it would it end up like this. He should have known that Azula being kinder to him since Ba Sing Se didn't mean she was no longer as ruthless and cruel as Ozai, and that whatever affection she felt for him didn't change the fact that she had never been the type to take 'no' for an answer. He should never have forgotten that his sister always got what she wanted.
Yet he managed to make himself ignore everything he knew just so he could believe on the illusion he wanted to be true - he had always been stupidly good at that. When his sister showed up out of nowhere, saying their father wanted him home, he believed her. When that was proved, of course, to be just another one of her lies, he resented her, only to then run back to her side like a loyal dog when she told him to in Ba Sing Se.
That night, Azula had been... different. He couldn't explain it, but everything about her seemed more welcoming, forgiving, even loving. Words he had never thought he'd associate with her. And it didn't stop after that night. The first half of their trip back to the Fire Nation had been the closest Zuko had been to be actually happy since his early childhood. There was this odd affection and tenderness to his sister; in her eyes, and in the way she spoke to him, on the smiles she offered him... it all had this strange, yet familiar warmth that he so desperately craved from her yet had been denied for years. He couldn't help but want to get closer to her.
And then he got burned yet again.
They had been having a nice dinner together in Azula's room, completely by themselves, the crew busy, Mai and Ty Lee buying stuff before they continued on their journey. It was pleasant, comfortable, the two of them were just talking, joking around.
Until she tried to kiss him. When that happened, Zuko instantly stepped away from her and kept at her at arm's length, staring in absolute shock. Despite knowing that it wouldn't have been right to kiss her, he still felt like the worst person in the world for what he did. Azula seem deeply hurt, and for a split second Zuko was afraid she'd start crying and run out of the room.
He really should have known better than to expect something like that. His sister didn't cry, and just like she never cowered before anyone, she'd never feel ashamed of herself and run away from someone who had scorned her (intentionally or otherwise). She recomposed herself almost instantly, gave him a polite but obviously insincere apology, wished him a good night and gracefully went back to her room like nothing happened. There was no need for her to say anything else to him; the rage that had been burning her eyes as she looked at him gave him a message that was loud and clear: he would regret this.
His misery begun the very next morning. The second he left his room, he could feel the eyes of everyone in the crew staring at him with both distain and pity. Azula made sure to remind of his place, mistreating him at any opportunity. But the lowest blow was when he tried to talk to Mai, and she told him to never come near her again - both for her sake and his own.
Zuko knew she wouldn't be the only one his sister would blackmail or threaten, but he had not expected her to find something to use against him so fast. When the sun had gone down and went to his chambers, he found two swords and a Blue Spirit mask on his bed. He immediately confronted her about it, but being met by nothing beyond a cruel smirk, a promise that his secret was safe, and a reminder that the Dai Li were always watching everyone and everything. He had assumed that was it, but a few days later, when they finally arrived at the Fire Nation, his father praised him for killing the Avatar. Zuko had not understood how exactly that would benefit her, but he knew she had not had a change of heart overnight, and Azula didn't keep up the pretense for long.
"Please Zuko, what ulterior motive could I have? What could I possibly gain by letting you get all the glory for defeating the Avatar?" she said, way too close to him, and putting a hand on his shoulder "Unless, somehow, the Avatar was actually alive" her hand slowly moved from his shoulder to his chest, then she started walking away, and despite the awful situation he found himself in, Zuko felt relieved just by not having her that close anymore "All that glory would suddenly turn to shame and foolishness. But you said it yourself, that was impossible"
He left her room absolutely furious. Having Azula making his life turn into a never-ending nightmare was bad enough, but the reason she was doing it and the way she kept teasing him, reminding him there was one way, one terrible, horrible way to fix it all were what he feared would drive him insane. Still, he tried his best to stay calm, to deal with it on his own. He was completely sure that no matter what she did against him, he would not give in.
But he had forgotten just how well his sister knew him. She realized pretty fast that this wouldn't work, so she found something that would. Their uncle, who had always seemed to be in pretty good health, was suddenly very, very ill. When he refused to eat what was offered to him, well aware that he was being poisoned, the guards forced him to eat the food, which became easier and easier as he got weaker after every meal.
Zuko begged for Iroh's life. Betraying the man and being responsible for his imprisonment was already bad enough, the prince would not be able to live with himself if he also caused his death. Seeing his despair, Azula promised him their uncle would live, and it quickly became clear that Azula was true to her word.
And it was time for Zuko to be true to his.
He waited until the palace was almost completely quiet, with only the guards that had night shifts being up, to go meet his sister. Still, he used the secret passage that connected their rooms, just in case. Years ago, when they were still so young and such good friends, sneaking to her bedroom would have made him happy. Now he felt like a prisoner sentenced to die.
Azula was sitting in her bed, wearing her hair down and nothing but a robe. She didn't have any make up on, but that only made her look even more beautiful. Had been some other girl in her place, one just as beautiful but not as vile, and had he been meeting her at night out of his own free will, Zuko would have considered himself the luckiest man alive. But it wasn't. And he knew there was no way for him to pretend it was someone else. His sister's presence had always felt so much larger than life that he could go blind and deaf and still recognize her.
"Come closer, Zuzu" she said it in a kind tone and offered him a warm smile, but they both knew it wasn't a request.
He walked up to her, feeling as if his legs would give out at any moment. Azula got up and started circling him, touching his arms and shoulders. Her touch sent shivers down his spine and made him want to run away, while the smell of her sweet perfume made him feel a little light-headed.
"This won't do" she said, hugging him from behind, and the feeling her pressed up against him made his breath get caught up in his throat "I understand you wanting to look good for me, but you're way too dressed up, Zuzu" without another word, Azula started tearing at his shirt, letting it fall to the floor, gently running her hands through his exposed torso before cruelly digging in at his skin with her nails "Much better"
"Get this over with" he tried to demand as he felt her press her lips to his back, but it sounded more like a desperate plea. One he knew very well would not change her mind.
"What's the hurry? We've got all the time in the world, Zuzu" she kissed his neck before sucking at it, and, to Zuko's horror, his body started to react, blood boiling with need and cock quickly hardening "Now tell me, brother, how many women did you have before me?"
"Why does it matter?" he tried to avoid answering.
"I like knowing how much experience my lovers have"
Zuko couldn't help but become absolutely enraged at the thought of his sister in bed with someone, no matter who it was. The fact that she had said lovers, plural, infuriated him even more "I've never been with anyone" he answered bitterly, only because he didn't want to think about the reason why he didn't want his sister to be with anyone and he definitively didn't want her to notice it had bothered him.
She pulled away and made him face her "You cannot be serious" when he didn't say anything, she seemed to be even more shocked "No whore, wench, concubine or noble girl? Ever?"
"No" he snarled, becoming even more irritated when his sister started to laugh "What's so funny?"
"Oh, Zuzu, I'm so sorry" she said, still chuckling and pressing her forehead against his nape. He tensed up again when she hugged him and nipped at his ear "I see my mistake now. I scared you away, didn't I? Poor little thing" she mocked in a cruel, yet somehow still seductive tone, before slowly sliding her hand through his back, waist, and finally rubbing his cock over his pants, making him try and fail to fight back a moan "I'll be gentler and more patient. I'll be a good little sister and guide you" she started kissing his neck again, then gave his jaw a quick little lick "I bet you'll be good. You're my brother after all" her nose was brushing against his and her left hand was gently playing with his hair "And I bet you'll beg me for more once I'm done with you"
Why does she always have to know what say to get in my head? he thought to himself just as Azula kissed him.
Before he even knew what he was doing he wrapped his arms around her, embracing her as he parted his lips to let her tongue toy with his and explore his mouth. Agni help him, but that had been the best kiss he had ever gotten in his life and it stole his breath and made his head spin. The warmth of his sister body and her passionate kiss made the whole world stop existing for a few precious, delirious moments. And yet, whatever was left of his morals - and perhaps of his pride - seemed to keep trying to find a way out, telling him to fight her off, and that even losing and facing the consequences of it was better than succumbing to the wishes of such a vile creature.
Yet, when Azula broke the kiss, but stayed in his arms, he simply looked at her in awe and confusion. He was sure his cheeks were even redder than hers.
After recuperating her breath, she quickly pressed her lips to his... then pushed him onto her bed and sat on his lap. Zuko was shaking, absolutely terrified, and that only seemed to get his sister even more worked up. She rubbed her ass against his erection, and he found himself wanting to burn the layers of clothing that prevented him from touching her directly.
What is wrong me?
"Azula, this isn't right" he managed to find the courage to say, but she just ignored it, stealing another fiery kiss from him and leaving him even more disoriented than before "Please, stop..." he tried one last time when she pulled away.
"No" she snarled, before recomposing herself "Stop complaining or it'll be worse for you" she started undoing the knot that kept her robe closed, allowing him to catch just a glimpse of her perfect breasts, and he wasn't able to stop himself from staring, wanting her to just undress already so he could see what her naked body looked like. Obviously that didn't escape Azula's attention "Like what you see, brother?" she asked, smirking and raising an eye-brow.
Brother, the word echoed in his mind. Why did she manage to make even that sound so wrong, so erotic?
He stayed quiet and Azula simply grabbed his shoulder and started generating heat, it quickly becoming enough to give him a burn that made him groan in pain "When I ask you a question, I expect an answer. Don't make this worse than it has to be, Zuko. Now answer me" Despite the pain, he didn't say a word. Not until she cupped the un-scarred side of his face. Her hand was cold, but the mere suggestion of that threat was enough to make him feel like his face was on fire, and his entire body started trembling in fear.
"Don't" he begged, feeling like a complete fool.
Azula's expression softened and she kissed his forehead, then his scar and his lips "Just do as I say, and nothing bad is going to happen to you, or anyone else" her voice sounded almost regretful, and even though he suspected it was simply an act to try and make him cooperate, he still held onto it, hoping that there was at least one or two lines his sister wouldn't cross, at least if he managed to appease her.
So he let her kiss and touch him again and again, and allowed his own hands to roam her body, even though he didn't know what to do or how to do it, hesitantly, awkwardly letting them sneak underneath her robe to touch, caress and grope her soft, warm skin, or stroking her hair, running his fingers through it and feeling her smiling into the kiss. Azula toyed with him, biting his lower lip and sucking it into her mouth, digging her nails into his skin, rubbing and pressing up against him, making him get on top of her for a little while then pinning him to the mattress again, rolling around on the bed... when she finally pulled away, panting for air, he saw her red cheeks and the pure lust burning bright in her eyes.
As his gaze drifted lower, he saw taking off her robe, that was already not doing much to cover up her nudity after they made out. 'Perfect' didn't even begun to describe how her body looked. Round breasts, puffy pink nipples, soft belly, thick thighs, and that smooth, wet pussy that made his mouth water as he imagined what she'd taste like. His stare gave him away, and his sister just smirked and moved her body upwards, putting one leg on each side of his head and grabbing him by the hair as she brought herself lower, moaning as she pressed her cunt to his mouth.
Zuko ignored the anguish and resentment that were still trying to hold him back, sucking on his sister's outer lips, then using his fingers to spread them so he could lick the inner ones, feeling both proud and ashamed as Azula reacted positively to it. After a while she started guiding him, solely with her tight grip on his hair that was already starting to cause him a little pain. He licked over and over, then penetrating her with his tongue, swirling it inside her over and over.
"Higher, Zuzu..." she commanded, forcing him to move his head before he even had the time to understand what she said. He started sucking on her little clit and felt his cock twitch as she gasped in pleasure "Yes... oh, yes... just like that... don't stop..."
It wasn't like he had a choice. And it wasn't like he'd stop now if he could. Zuko knew he should hate her, that he should want to kill her for this. That he should be disgusted by her kiss, by her touch, by the sight of her body, by the things she was forcing him to do. He should. But in the end, the only one he hated and was disgusted at was himself, for enjoying this and because he knew very well that part of him genuinely wanted to please Azula, regardless of how vile she was and of how wrong and disturbing this whole situation was. Some part of him was just as sick as she was and wanted this just as much as she did.
And it didn't allow him to stop until she cried out his name as he made her come, holding onto her thighs with as much as force as she using on her grip on his hair, keeping her in place as she trembled. Even then Azula kept rubbing her pussy against his face, not pulling away until he had taken all she had to offer.
Still trembling and trying to catch her breath, his sister started kissing his chest, moving lower and lower, then finally freeing his cock from his pants and taking it in her hands. He fought back a cry of both pleasure and frustration as she stroked him with antagonizing slow movements.
Just get this over with so I can forget it ever happened, he silently begged, despite knowing very well that Azula would never miss a chance to make this torture continue, even if just a little more, and that this would not be a one-time thing.
"I usually wouldn't do something like this" she pressed a kiss to the head of his cock, making him gasp "But you actually deserve it. You exceeded my expectations, brother"
"Don't call me that" he snapped "Not now. Not while we're doing this" he said, immediately regretting it and fearing her reaction.
Azula simply laughed "Don't act like you're not getting off on this as well" she pressed another kiss to his cock, giving it a long lick this time "Don't pretend you don't love seeing your baby sister pleasuring you" she started stroking him faster, the sudden change of pace making him groan "Don't pretend you're not dying to bury your cock deep inside me and make me scream for you while you stretch me out, brother"
Without another word, Azula took over half of his length into her eager mouth, and he almost came instantly. He instinctively tried to grab her hair, but she slapped his hand away, giving him a stern look. He ignored it and begun thrusting his hips upwards, and grabbed her hair with both hands, trying to control her movements.
He stopped the second he felt her teeth threatening to bite his cock, and Azula clearly enjoyed seeing the fear in his eyes.
He just lied there, trying his best not to move a single muscle as she sucked him off... and watching as she started furiously touching herself as his cock hit the back of her throat over and over. It didn't take more than two minutes for him to spill himself in her mouth, and gladly swallowed all of his cum, which only fueled his lust.
Zuko didn't even have the time to be horrified. His sister sat on his lap, kissing him and rubbing her ass against his cock, making him hard again, teasing her clit all the while. She offered him a cruel smile as pressed the tip right to her entrance. Even though he wanted to, the young prince just couldn't look away, watching as Azula brought herself down on his cock, taking every inch into her hot, tight cunt.
He moaned and pulled her in for a kiss that quickly became all teeth and tongue, embracing her. When she pulled away slightly, he took the opportunity to grope and suck on her breasts, nipping at her nipples every now and again, loving hearing her moans.
"Faster" she demanded, hips moving wildly, and Zuko didn't hesitate, giving it to her rough and hearing the wet, obscene sounds that came from in between their legs. He was moving as fast as he could, and going as deep as possible, but it still wasn't enough for either of them, especially not for his sister, who pushed him into the mattress once again, one hand rubbing her clit as she rode him furiously, and the other wrapped around his throat, chocking him.
By that point, Zuko could no longer care about right and wrong, or about the horrible reasons he had ended up in this situation. All that seemed to register on his mind was the strange, forbidden pleasure of having his sister control him, use him, hold his life in the palm of her hand; of feeling the vice-like grip of that tight, tight cunt had on his cock; of hearing her desperate moans turning into screams as they both were so close to orgasm.
"Zuko! Zuko!"
Suddenly she went quiet as all the air seemed to leave her lungs as she climaxed, and Zuko closed his eyes and grabbed her hips as he shot load after load of his cum deep in her cunt. Azula lied on top of him, gasping for air just as he was, resting her head above his heart, his cock still inside her. Without even realizing it, he embraced her, making her smile sweetly at him. She looked almost innocent.
Almost.
"I knew you'd be good..." her voice was a little weak "But not this good, Zuzu. I don't think one night is enough to satisfy me"
"I'll do anything you want, Lala. Whenever you want" he said, not even bothering to at least pretend he didn't enjoy having his sister abuse him, as there was no point in doing so.
They both knew that he belonged to her now.