Leave the island.

After their naughty adventures on Kyoshi Island, it didn't take long before they were all over each other in the saddle, while Appa set course to their new destination... Omashu! It was a special place for Aang, as he used to have a good friend living there. The two of them had gone through many wild things together, like riding through the city on the mail delivery system and letting one of the Earth Kingdom officials ride their cocks on Aang's eighteenth birthday. So many beautiful memories and Aang was very happy he could show around his new friends the town as soon as they arrived! It took some convincing for the guards to let them in, but a quick flash of their busty companion was more than enough. Aang took them for a ride as well, one that didn't include Katara's pussy getting roughed up, for once. However, everything goes wrong and the cart ended up running over multiple roofs, really messing up the architecture of the city...

Although they did manage to land safely at the bottom, they were captured for the second time in a very short time. This time, they were arrested by the guards of Omashu and brought to its King. He was a very old man, but very intriguing and Katara noticed that he was actually somewhat attractive. Like, in a weird way but his body still seemed very powerful. And he was a King. She had been with the Avatar but a King would be a first time. She was pulled out of her naughty daydreams as he made a comment about her body, making her blush a bit.

"Seems like you found yourself some good company, self-appointed Avatar." The king laughed. It was a very weird laugh, which almost made Katara take back her thoughts - almost. However, the weird snorting laughter, the shameless lewd remarks and the way the king was checking out Katara seemed to make Aang frown.

"It can't be." The Avatar mumbled to himself as he remembered that laugh. It would mean that the King was even older than they'd guess, but a bright smile appeared on his face. "Bumi, is that you?" He called out, and the two old friends hugged. It was indeed his old friend Bumi - the two of them used to be good friends 100 years back. They seemed to be too busy catching up, talking about the girls they had spitroasted back in the days, and had completely forgotten about the siblings who took the time to sneak through the palace and just admire the city further.

The sun was already starting to go down by the time Bumi seemed to remember something. "My dear friend, I have to show you something!" He declared, and guided Aang through the hallways of his palace all the way to his private quarters. As he pushed open the curtains, the two old friends walked into some sort of bedroom. On the bed laid a strange creature. Clearly a woman - a beautiful woman, even. Long white hair flowed down over her back as she was curled up in the sheets, her curvy body covered in some white fur clothes, barely covering up anything. There was just one thing that would make her strange rather than absolutely smoking hot. A pair of ears stood up from her head, and a long white tail was slowly waving around.

"Who is this?" Aang asked curiously, as there was something familiar about creatures like this but he couldn't quite place it.

"I don't know. I think it's some kind of spirit monkey!" Bumi answered as he shrugged, letting out another one of his laughters as the creature jumped up. Apparently, it wasn't sleeping - or not very deep, at least.

"A lemur! Not a monkey!" She defended herself, her voice being quite high. "But you are right, I am a spirit..." She continued as she turned to the two men who had interrupted her little nap. Her eyes widened as she noticed Aang standing in the doorway. Nobody would dare to pretend to be an Airbender nowadays, so he had to be a real one! And that made him the... "AVATAR!" She shrieked out as she jumped over in his direction, hugging him so very tightly. Her large breasts were squeezed against his chest strongly, showing off even more of her cleavage.

Bumi explained that the lemur spirit arrived to Omashu a couple of years back. Never told why, but he decided to let her stay for the sake of Aang and the rest of the air nomads since she was clearly one of them. "Her name is Momo. She's your responsibility now, there's always something with that one." He groaned out, giving Momo's ass a playful tap before patting Aang's shoulder and saying his goodbyes. He was tired, and wanted to get some hours of sleep...

"Oh, I'm so happy! Please, let me stay with you, I'll be such a good girl." Momo pleaded, not wanting to be left behind by the Avatar. Unconsciously, she had started grinding herself against Aang, not even realizing how his cock was growing harder. Of course, that made it extremely hard for Aang to refuse, and besides - she was the closest thing to a Lemur that was still alive. And a spirit! He was the bridge between humans and spirits, so in a way it was his responsibility to take care of this woman.

Besides, she was hot. Surely Sokka wouldn't mind...

By the time it was dark, Aang had left the palace to find the Water Tribe siblings and introduce the newest member of Team Avatar!