Author's Note: The title means just what you think it does, but the story is unexpected, in that it tries to be a 'real' Avatar tale that sheds some light on mysterious events in the Avatarverse.

It's full of comedy, drama and action, plus it's very character-driven, just like a typical episode.

Also, the characters stay true to themselves, although Toph acts a little OOC (for comedic purposes only).

The big difference is that it's a mature story (sorry, kiddies) and every chapter has a sex scene.

The Legend of the Mouthbenders

Avatar: The Last Airbender and related characters copyright Nickelodeon

"You better not enjoy this, Sokka!" Katara proclaimed as she bent her head towards her brother's crotch. Her bindings chafed her arms and legs, causing much pain, but Katara fought through it to reach her goal.

"How could I? You're my sister!" Sokka cried out.

"Yeah, well, you better enjoy it, Snoozles, or we're all dead!" Toph barked, as usual telling her companions the truth they needed to hear, but in her own inimitable, annoying style.

What happened to our heroes to bring them to such a state, to where the unthinkable suddenly becomes not only thinkable, but doable?

What happened to cause Katara, Sokka and Toph to not only discover a new bending style, but a 300 year old world-spanning conspiracy that affected life in the Earth Kingdom, the Fire Nation and the Water Tribes?

Chapter 1: More than a Mouthful Just Goes To Waste

"Hey, look at this rare waterbending scroll book!" Katara of the Southern Water Tribe announced to her fellow traveling companions - her brother Sokka and the earthbender Toph Bei Fong. They were in the Earth Kingdom to replenish their supplies while Aang flew ahead on Appa to start work on a humanitarian mission, rendering assistance to those made homeless by an earthquake. Word came from the local authorities that their most pressing need was a way to ferry survivors to a tent camp, and since Katara, Sokka & Toph weren't needed immediately, the three elected to stay behind and meet up with Aang later.

"Yeah, that's nice, but we need REAL supplies, not foo-foo 'magic hands' books!" Sokka dismissed the find. "Besides, we can't afford it. And aren't you a master waterbender, anyway? What do you need that thing for?"

"But the drawings are so beautiful! It's a shame it's here, instead of someplace someone could use it, like in the North Pole with the Northern Water Tribe!" Katara lamented.

Then, an odd discovery.

"Huh...There are pages missing." the South Pole girl noticed. "Shopkeep...Sir, do you know what used to be in here?" she politely asked.

"Who knows? It's just some old book!" the surly vendor snapped. "Do you want it, or not?" he demanded to know.

"Well, that is..." Katara mumbled.

"You can't afford it, can you?" the merchant seethed with annoyance. "Lousy kids! G'wan! Get out of here!" he said as he shoved a broom in the kids' backs.

"Hey! We're going! We're going!" Sokka yelled. "No need to get all broomy on us!"

"That's another store that's thrown us out!" Sokka moaned. "You know, this never used to happen when Aang traveled with us. "Oh, Mister Avatar, sir, is there anything else you need?" he said in a girly, sing-song voice, hands clasped adoringly next to his head.

"Sokka, you know they needed Appa to transport the survivors of the quake." Katara pointed out. "And they need us to get the medicine and other supplies the survivors will need."

"Yeah! What we're doing is important!" Toph declared.

"Huh. Wish the people here felt the same way!" the Water Tribe warrior emoted. "Are you guys getting a bad feeling about this place?"

"It's only a simple Earth Kingdom town, Sokka!" his sister replied. "They're obviously not used to strangers. That's all that's going on here. There's no 'conspiracy'." she giggled.

"I hope you're right, Katara." Sokka said. "I hope you're right."

Unbeknowest to the three heroes, a man in black shadowed their every move, constantly nearby but always out of sight.

Knocking on the door of the next store in town, Katara was surprised to find no one home.

Yet, the door was ajar.

"Hello! Is anyone here!" she called out through the slightly open entrance.

"The door's open!" Sokka curtly announced as he pushed past his sister. "Let's go in and shop, and we can wait for the owners to return to pay them."

"I don't think that's such a good..." Katara began.

But it was too late.

Sokka was already inside.

"Sokka!" his sibling hissed. "What do you think you're doing?" she stormed in after him.

"Looking...at all this...stuff." came Sokka's stunned reply.

All around the three were mountains of goods, such as animal pelts, sculpture, paintings, rare scrolls, exotic animals in cages and, most amazingly, war machinery such as Fire Nation tank guns and flamehrowers!

"What...what is this place?" Katara gasped.

"Even I can feel how strange it all is." Toph noted. "This stuff shouldn't be here, should it?"

"This...is all illegal." Sokka expertly deduced. "I think...I think we just found the black market!"

"Let's get out of here, before someone..." Katara began to say.

Suddenly, a small object hit the ground, releasing a cloud of gas into the room.

"Cough cough!" Katara croaked.

As the noxious vapors filled the room, the three warriors for peace succumbed and passed out.

Waking was no picnic; her head throbbing, Katara opened her eyes to discover she and her companions were tied up and held in a small, wooden room, with no bendables or any other weapons in sight.

"I think we're in trouble, Sugarqueen!" Toph said, in her typical, and irritating, truth-telling style of hers.

"I heard whoever captured us, smugglers I guess, saying how they have to 'get rid of us'!" Sokka sourly said. "I don't know what they're waiting for, but whatever it is, I don't think we have a lot of time, so I hope you can get us out of here, Katara!"

"All I need is some water..." the master waterbender stated. "Even though I'm tied up, I think I can move it with my fingers."

"Wow! How can you do that?" the very impressed earthbender asked.

"I use my hand as a substitute for my body. The thumb is the head, and the four fingers are my four limbs. It's a technique I'm developing." Katara elaborated. "Now if only I could perspire..."

However, her bonds were much too tight for Katara to move a muscle, let alone work up a sweat.

Also, the gas, plus however long they were unconscious, had dehydrated them. Katara's parched throat could barely create a droplet of spit, and the others were similarly handicapped.

But there was one possible source of water in their bodies.

"I don't suppose..." Katara began voicing her unusual thought.

"...That any of us have to go wee wee?" Toph grossly finished Katara's question. "Don't you remember, we all emptied our bladders before we hit that nurse's place!"

"Yeah...I remember." Katara sighed. She thought of Aang, and how she'll never see him again, never...No! It can't end like this! At the hands of smugglers? After all we've gone through?

"Katara?" Sokka tenderly asked. "Don't get down! It'll be okay."

"How can it, Sokka?" Katara cried. "What can we do? No earth. No water. No Aang."

"There might..." Toph hesitated to speak. It was barely a plan, and a bizarre one, at that. But what else could she do? "...There might be a way...for Sokka to make water."

"What do you mean, Toph?" Katara inquired.

"Yeah, Toph, what do you mean?" Sokka demanded.

"I know what you do at night, Sokka, when Suki's not around." Toph revealed.

"What? You saw me? I mean, heard me?" a flabbergasted Sokka yelped.

"It's not that difficult. You move around enough!" Toph snickered.

"Toph...you mean you want Sokka to, to do his jiji?" Katara couldn't believe they were even talking about the subject!

"Yes, Katara, I want Sokka to 'do his jiji', as you put it." Toph boldly stated. "Unless you have a better source of water? Maybe one of us can cut the other, and you can bend the blood that pours out?"

"No. No one's bleeding to death!" Katara sternly declared.

Though she was confident of her waterbending abilities, even while tied up, that was a risk Katara could not take.

"Yeah. Just one problem with your great 'plan', Toph!" Sokka acidly added. "I can't move my hands, either, so there's no way I can do my thingy!

"That's a problem, but there is a solution. Not that you'll like it." Toph mysteriously said.

"Don't keep us in suspense, Toph!" Katara anxiously exclaimed. "What is it?"

"Well, I'll just come right out and say it. Ahem." Toph cleared her throat. "Katara, you're right next to Sokka, so you can bend over and, ah, do him with your mouth!"

"What?" a stunned Katara cried.

"Hey, I'd gladly do it, but I'm tied real tight to this railing, so there's no way I can stretch my neck down there to suck that prime South Pole sausage!" Toph breathlessly declared.

"Are you crazy?" Sokka snapped. "Katara's my sister! Wait, what was that you said?"

"Okay, fine! If Sugarqueen doesn't fill her throat with some tasty manmeat, then we all wait around to die!" Toph laid it all out. "Your choice!"

"Tasty manmeat? Really?" a half proud / half mortified Sokka mused.

"Sokka, we can't let it end like this!" Katara reasoned.

"No, Katara!" Sokka refused. "There has to be another way! Maybe the smugglers will bungle the kill, make some mistake and we can get the drop on them?" he hoped.

"No. I couldn't bear it if anything happened to you or Toph!" Katara sobbed. "I can't let that happen! No matter what."

Katara leaned over, ready to do that which she never dreamed!

"Oh Spirits, I can't believe this is happening!" A nervous Sokka fidgeted, and immediately the bulge in his pants grew.

Which really bothered his sister, whose mood instantly changed.

And which brings us to where we started this tale.

"You better not enjoy this, Sokka!" Katara loudly proclaimed as she bent her head towards her brother's crotch. Her bindings chafed her arms and legs, causing much pain, but Katara fought through it to reach her heretofore unimaginable goal.

"How could I? You're my sister!" an alarmed Sokka cried out.

"Yeah, well, you better enjoy it, Snoozles, or we're all dead!" Toph barked, as usual telling her companions the truth they needed to hear, but in her own inimitable, annoying way.

It wasn't easy to pull down Sokka's trousers with her teeth but, when she did, Katara was surprised to discover her brother's penis wasn't as disgusting as she imagined.

Regardless, she couldn't face what she was doing, and to one of her own family, no less!

Katara paused, as she gathered the emotional strength to do the unthinkable.

"I heard it's easier to make the guy get off if you form characters with your tongue." Toph helpfully advised. "Oh, wait. I think that's the other way around. You know, guys doing girls? Sorry."

"Toph! That's enough!" Sokka berated the earth girl with the dirty feet and even dirtier mouth. "And where do you hear that kind of thing, anyway?" Sokka outwardly acted upset, and he was, but his insides roiled with a different emotion. Hmmm. Maybe I can use that technique on Suki? he told himself.

Anything to take his mind off the fact his sister was about to pop his oral cherry!

I can do this. Katara thought, mentally blocking out all of the madness around her.

The young waterbender took a deep breath, closed her eyes, opened her mouth, launched her head forward and engulfed Sokka's 'lao er' (little brother).

(Scene fades to black)

After an indeterminate lapse of time, Katara came up for air, her mouth full of cum, which she promptly spit out!

Then, making only the slightest bending movements with her fingers, the tied up teen and master waterbender expertly wove the tossed manjuice into a whip that slashed through all of their bonds!

Free at last, the trio eagerly made their escape from the smugglers' hideout.

Although Toph had...questions.

"I can't believe you did that!" Toph gushed in admiration of her friend's courage. "So, how was it?"

"Not as bad as I thought." Katara coolly replied. "Which doesn't mean I'm anxious to do it again! It was just something I had to do, that's all."

"A-hem!" Sokka interjected.

"What'd it taste like?" Toph eagerly continued her sex inquiry. "Meat, I bet!"

"It was a bit meaty, but sweet, too!" the fourteen year old girl from the South Pole nonchalantly answered, in a tone of voice that suggested she was speaking about some dry research project and not oral sex.

"Katara..." her brother sternly said.

"How'd you know what to do?" Toph asked, curiosity being stronger than Sokka's disapproval. " 'Cause you've never done it before, right?"

"No, Toph, I never have." Katara curtly replied. "I guess instinct took over."

Sensing her earthy teammate about to giggle, Katara quickly corrected herself. "Survival instinct."

"Katara!" Sokka reprimanded his sister. "I can't believe you and Toph are talking about this like it's some normal, everyday thing! Stop it right now!"

Embarrassed, Sokka turned away from the girls and whined "I have to find somewhere to...freshen up." Then he walked off in search of a shower.

"Get me a drink, will you?" Katara called out to her departing sibling. "I'm awfully parched!"

"That wasn't enough for you?" Toph laughed. "You want more?"

"You're so funny, Toph. Not!"

"I know, but what else am I supposed to say?" Toph defended herself. "We have the craziest adventures!"

"And what I did isn't even the craziest thing." Katara commented. "You're not going to believe this, Toph, and I didn't want to say it in front of Sokka but, when I was doing it, I could feel his chi, the energy building in Sokka's body!"

"That wasn't all that was building!" Toph zinged.

"I'm serious!" Katara replied. "What I did, it, it didn't feel wrong, or dirty. It felt like bending!"

"Whatever gets you through the day, K, is fine with me."

"I mean it!" Katara tried to convince her friend. "I wonder if there's a chakra in that part of the body? There's so much we don't know about how bending works."

"Well, Katara, I'm sure you'll be able to find a lot of guys to practice 'mouthbending' on if you ever want to try out your theories!" Toph guffawed.

"Everyhing's a joke with you, isn't it?" Katara bitched. " 'Mouthbending'? Eww! It even sounds disgusting!"

"It is a memorable term, isn't it? Makes quite the mental picture! But then, I am the master at naming things, aren't I?" Toph sweetly asked.

"Yes, Toph. Yes, you are." Katara sighed.

Unseen by either of the master benders, a man hidden in the shadows had observed the pair, and overheard their conversation!

"The secret is out." he whispered. "My brothers must know what has happened."

Then he was gone.

Next:

Our valiant trio comes under attack!

A mysterious stranger intervenes!

The secret history of the Avatar's world revealed!

And Sokka takes another shower!

(Will he ever get clean again?)

Plus:

More Kakka (Katara/Sokka)!

Which is a lot better than caca.

Watch as Katara stuffs her face into her brother's pants once again!

Geez, this is becoming a habit for the girl!

But it's better this time - they even kiss!

Notes

'Jiji' is Chinese for 'thingy'. It's a childish version of 'jiba', which means cock. Calling a penis a childish name is something Katara would do, especially in this situation.

I decided not to get all graphic with 'the act'. You, the reader, are of course free to add your own paragraphs full of 'veiny, engorged members' and 'lickable, sweaty balls'. But I promise to describe future mouthbending scenes in excruciating detail (a 'blow-by-blow', as it were).

The 'fade to black' is homage to the scene in 'The Cave of Two Lovers' where the scene fades to black just as Katara and Aang kiss.

The chakra bit was an unplanned addition to the story. The water chakra 'deals with pleasure, and is blocked by guilt', according to Guru Pathik in Episode 219. Could it be located in the groin? The episode didn't say where it was, but it did say the first chakra was at the base of the spine and the third was in the stomach. The groin is between the base of the spine and the stomach, and the body parts in the groin (penis, clitoris) are associated with pleasure. They're associated with guilt, too, as countless guilt-ridden Cathlics can attest. Also, I imagine a waterbender would have a special connection to a water chakra. So the story fits the show's mythos perfectly! And wait till you see how 'Legend of the Mouthbenders' fills in the holes in the Avatarworld's history.