Azula spent the entire day trying to talk to her brother and seeing him awkwardly pretending nothing had happened earlier that morning as he'd fail to avoid her for long. She played along, being much more convincing than Zuko, and actually convinced their mother that Zuko was acting so weird because of his break up with Jin - she knew Zuko wouldn't like their mother to find out that he hadn't even waited an entire week after becoming single again to just drag Azula back to his bed, but the sooner Ursa got used to the fact that they were the most important things in each other's lives, the better.

When Ursa finally went to bed, Azula walked through the hall, sneaking into her brother's room, much more nervous and excited than any of the previous times she had done this. She opened the door and saw Zuko in bed. His eyes were closed, but Azula knew he was awake. She quietly locked the door and climbed into his bed.

"I need to be with you tonight" she said, crawling towards him and grabbing his wrist when he tried to create some distance between them "Stay where you are. I like having you near me, Zuzu"

For a long time, neither of them moved a muscle, and Zuko slowly relaxed, pulling her close to him and holding her tight. He tensed up again as she threw one leg over his hip, and Azula could feel his pulse accelerating as she kissed his cheek then buried her face on the curve of his neck.

"Doesn't this feel nice?"

He nodded, but didn't say a word. At least not until she started kissing his neck.

"Stop" he begged, but she could feel him getting hard underneath her.

"I can't stop thinking about this morning" she admitted as pressed another kiss to his hot skin "You shouldn't have ran, dum-dum. I would have gladly done anything you wanted me to."

He pushed her away and tried to get out of bed, but Azula embraced him from behind, pressing up against him, keeping him there.

"This is wrong"

"How could it ever be wrong? You're my brother. There's no one I love and trust more than you" she rested her head on his shoulder "I've been in love with you my whole life, Zuzu. I could never be with anybody else"

"Don't say that. You deserve to be with someone else. You deserve to have something in your life be normal and easy for once."

"Why do you always have to be a martyr?" slowly and gently, she made him lie down again, sitting on his waist, straddling him "You're the only who could ever make me happy. And I know there's no one else for you, but me"

"Azula, please..."

"Tell me you don't want me. Tell me you don't love me, and I'll never bring this up again" she could feel his entire body reacting to every little kiss and caress she gave him "Tell me... you don't want this..."

Both their hearts were beating impossibly fast as Azula's lips brushed against his. She gave his lower lip a little bite before giving him a real, proper kiss, smiling into it as that simply action seemed to have made her brother melt against her. She wasn't completely sure of what to do since she had very little experience, but Zuko seemed to enjoy her sweet kisses and gentle bites.

Without warning, he flipped their positions, pining her to the bed. They both moaned as he got in between her legs, his hard cock pressing up against her. God, she wanted those clothes out of the way.

"Are you sure you want this?" he asked her, the desire and need evident in his voice. The low tone made her blood boil.

"Yes" she managed to free one of her wrists and buried her hand in Zuko's hair, gently running her nails through his scalp "Take me. Make me yours."

"You're my angel" he whispered to her "I wouldn't forgive myself if hurt you or made you do something you don't want to do."

Azula couldn't help but laugh at that. She pulled him in for a passionate kiss, her tongue toying and sparring with his, her hands touching him everywhere, and her legs wrapped around him, keeping him close. When Zuko broke the kiss to take off his shirt, Azula pulled down her shorts. She grabbed his hand and made him touch her over her soaked panties.

"Still think I don't really want it?" she asked nipping at his ear.

He answered with a groan and a fiery kiss that stole her breath. He started sucking, kissing, licking and biting on her neck as he groped and massaged her breasts, teasing and twisting her nipples over the fabric of her clothing. Once he took off her shirt, he covered her pale flesh with hickeys and bite marks like he had done with her neck. It all made her crave him so bad it almost hurt.

Clearly Zuko was feeling the same way. He kissed her stomach, then practically ripped her panties off and threw her legs over his shoulder. Azula squirmed as he ran ran his hands over thighs and kissed and nipped at her soft skin. She moaned a little too loudly when he pressed his mouth to her cunt. She gave him an apologetic look, but Zuko simply offered her a malicious smile.

"We have to be quiet, Lala" he gave her a long lick and started sucking on her clit, making her tremble and bite her lip to avoid making any noise.

"You're not exactly helping" despite using a harsher tone, she grabbed his hair, keeping him there. She rubbed up against his face as his eager mouth continued to devour her. Every now and again her brother had forcefully keep her legs spread as she would instinctively try to close them as he kept on eating her out.

She had to cover her mouth with her hand as he brought her to orgasm, and Zuko held her in place as her entire body started to convulse. When he finally pulled away, he took off his shorts and underwear, then got on top of her again, kissing her sweetly.

"We can stop if you want"

Azula smirked and grabbed his cock, stroking him, and Zuko hid his face in the curve of her neck as he moaned. Without another word, her pressed up against her entrance.

"Ready?"

When she nodded, her brother started thrusting into her, kissing her so neither of them would make too much noise. Azula was feeling a little discomfort and pain, but Zuko was being more than gentle enough to make her enjoy herself, and after a few instants all she could feel was pleasure. Her nails were digging at his skin, but he didn't seem to care at all.

"My Azula..." he said as he started thrusting harder and faster "Mine... all mine..." he covered her face with kisses "No one else can have you"

"No one else" she promised.

Despite clearly being close, he kept delaying his own release. She had always known her Zuzu would be a selfless lover. He didn't have to wait too long. They bit their lips bloody as they reached their climax together. He pulled out and embraced her, kissing her forehead and rubbing her back.

"I can't believe we actually did this" his loving voice sounded like music to her ears "My little sister is all mine."

"Was I better than the other girls?"

He laughed "You were the only thing I could think of whenever I was with any of them."

"Really?"

"Zula" he kissed the tip of her nose "There's no one for me but you."

She pulled him in for one more kiss, then gave him a sweet smile "I love you, Zuzu."

"I love you too. So much" he sounded unbelievably relieved to finally say it.

He'd never have to deny that ever again. They'd never let each other go.