Chapter Text
After days of irregular sleep, constantly disrupted by her body’s increasing demands, Katara slept the deep, heavy slumber of the truly exhausted. There were no dreams. No tossing or turning. No discomfort even though she was lying on her bedroll on a hardwood floor - not to mention being half-buried under a man and speared open on his unthinkably huge and seemingly perpetually hard knot. As she was drifting off with his big hands sweeping slowly over her, she marveled that she could feel so sheltered and secure with anyone, much less Zuko.
It must have been a hormonal thing. Or something to do with finding relief from the absolute misery heat had been for her so far. Certainly, that had to be the reason she’d felt almost... fond of him when he had recovered from his orgasm straight into rut.
His scent had changed, turned decidedly musky and animal. But he’d been so... soft. So unlike the Zuko she had known before. Sweet. Tender.
Zuko was an unrivaled jerk... but sex with him was... not like sex as Katara had known it before. With Jet, it had been hasty - and at the time, she had thought that was a result of passion. Jet was excited to be with her, and their time alone together had always been so brief, they had to make the most of it. Over the course of their week-long affair, she had grown accustomed to soreness that lingered and had learned to savor unsated arousal.
But Zuko... Zuko was also excited to be with her. His impatient, urgent scents were obvious. And still he was so... persistent and restrained. When he worked his way up to passionate, he went to great lengths to ensure she was there with him. In more ways than one... and Katara wasn’t sure what to think about that...
This all passed very briefly and hazily through her mind as she was drifting off in the morning. When she woke in the afternoon to find Zuko sitting up on the bedroll beside her, the length of his thigh a comforting pressure against her back, she hardly noticed his alert posture or his watchful eyes.
Because she was on fire.
“Alpha,” she mumbled, and he was there.
He coaxed her to drink a little water, eat a little of the food from her pack, and while she chewed and swallowed, he ran his soothing hands over the length of her sweating, overheating body. He lay behind her and kissed her neck and back and shoulder as he stroked her. She could feel his erection brush occasionally against her butt, but he didn’t press it against her.
Until, finally, she couldn’t wait any longer. She caught his hand and redirected it between her spreading legs. “Please, Alpha - need it now.”
He growled and got to work. He reached around her to toy briefly with her clit before sitting up and working his fingers into her from behind. Katara was still so slicked-up that she was ready and impatient from the moment he started. Then, sitting up on his knees straddling her lower leg and hitching her upper leg over his arm, he pushed his cock in just like that.
Katara hadn’t even known sex could be done this way and stared up at him in shock as he sank slowly in to his twitching root. He met her eyes and his mouth quirked up a little on one side - a breathless little almost-smile - and then he proceeded to fuck her with long, languorous strokes that gradually grew rougher until he was gripping her leg in one hand and her hip in the other, a tight, almost bruising hold that held her steady as he slammed into her.
The whole time, he murmured sweet profanities that dripped excitingly off Katara’s conscious mind - up until the end. He had driven her very close to climax and he was working on knotting her, leaning over her and grinding deeper into her with the hard, urgent quickness he had used that morning.
“Ready for my knot?” he demanded, grunting as he pushed.
“Yes, Alpha! Please, Alpha! Knot me, plug me up-”
“Yeah,” he growled, hunching even farther over her and releasing her leg to brace his hands in the nest on either side of her shoulders. “I’ll plug you up, Omega, pump you full of cum and seal you up so none of it can leak out.”
Katara moaned, her excitement hitting new peaks. “Yeah- yeah- fill me up with your cum-!”
“Gonna seed you so deep,” he snarled. “Fill you up with my babies.”
The idea was so mindblowingly exciting, Katara started to come - but in the same moment, her conscious mind sensed danger and lurched back to the surface. She could feel Zuko’s knot filling out in earnest, his thrusts going suddenly especially deep and staying deep. She felt his cum spilling hot and sloppy inside her, his knot expanding shockingly hard, stretching her channel impossibly wide.
Sealing her tight so his cum would stay in.
“Gonna make such strong babies for me-” he grunted as he flexed his hips into her.
“No...” Katara whimpered, but her traitorous cunt pulsed into a fierce orgasm, binding hard around his knot and squeezing him as he continued pumping shot after shot of cum deep inside her. Zuko, head tipped back and teeth bared, seemed all but deaf.
“Rrrhh - so good, Omega. Seeding you so deep right now. So deep and good.”
As her orgasm rattled through her and began to fade, Katara had a terribly clear-eyed view of Prince Zuko holding himself over her, his head hanging and his chest heaving, his muscles and ribs even more visible by the muted daylight. His slack, closed-eyed expression and scent suggested wrung-out bliss. And triumph. His knot went on pulsing inside her, unloading more and more of Prince Zuko’s semen into her - probably into her very womb, he was lodged so deep inside her.
It filled her with horror and fresh arousal and disgust and satisfaction. One after the other. All at once, throbbing through her alongside the aftershocks of her intense orgasm.
Zuko must have scented her distress because he quickly came blinking back to himself and immediately looked to her with confused concern. His pupils were still blown wide. He had that same soft, unguarded quality that he’d had after he knotted her the first time.
“S’wrong?” he panted, eyes widening.
Katara felt helpless tears welling up, but she refused to cry. “I just... I don’t want to be pregnant. Remember? Talking about that?”
“I remember,” he said slowly, a deep furrow in his brow.
Very careful to not pull too hard at where they were bound, he adjusted their bodies so he could lay down in front of her with her thigh still hitched up over his hip. He tucked one arm under his head, but his other hand lingered on her leg, a warm, not-unpleasant weight. He was very close, peering at her evenly, fully attentive.
He smelled anxious and... sad.
“I’m sorry I upset you. I wasn’t thinking. I know you don’t want to get pregnant... All that stuff I said just, I don’t know, came out... like my alpha started talking through me or something. The rut is making me a little...” He huffed, suddenly annoyed. “I don’t want to say dumb but it’s the only word I can think of.”
Katara let out a half-laugh and patted his shoulder. “It’s okay that you’re dumber than usual, Zuko.”
He looked briefly reassured, then narrowed his eyes. Katara just smiled and tucked her hand back under her cheek.
“And I understand what you’re saying... I’m honestly more freaked out about... how much I didn’t hate it. That and... it just occurred to me how incredibly likely it is that you’re actually getting me pregnant...” She wasn’t sure if the sudden pulse in their binding was her or him or both of them and decided to just ignore it. “...because that’s the whole point, isn’t it? Of heat and knotting and all of it...”
Zuko sighed and nodded. There was a note of guilt in his anxiety and sadness now. But whatever he was thinking, he didn’t say it.
“It makes me feel better to know it’s just your alpha talking through you because then it’s okay that my omega is talking through me, too. And when my heat is over, I can still make my own decisions.”
“Yeah,” Zuko said, determination welling up from him - Katara was surprised to find it had become a reassuringly familiar scent. “When it’s over, we’re gonna figure something out. I passed a village on the way here. There’ll be a healer there - or someone who knows where to find one. And, on the ostrich-horse, it’s not such a long trip.”
“You’ll take me?”
“Of course. Have to catch the ostrich-horse first but yeah...”
Katara met his gaze and, for a long moment, she just stared into his gentle eyes and marveled, not for the first time, that this was the fearsome alpha in rut that Yugoda had been so worried about.
She also let herself wonder at the stark difference between this guy - naked, soft-eyed, bound inside her, attentive and accommodating - and the fierce foe who had appeared calamitously on her doorstep yesterday, still hunting for the Avatar. She wondered how big the difference really was between those two guys. She wondered, fleetingly, what it might be like if he took her to that village... and then maybe... Maybe, if he was still this guy after that, she might let him take her to the place with the thing...
Sokka was gonna have a meltdown.
“And you said you have, uhm, herbs?” Zuko asked at length.
“Yugoda gave them to me two years ago,” Katara sighed, glad to put a stop to that line of thinking. “They may not work.”
“Did they work before?” he asked carefully. “I mean, depending on how long ago that was... If it was recent, maybe they’re still just as good?”
Katara was confused for a second until she scented that whiff of stifled jealousy. He was asking about the other alpha again. She scoffed, not sure whether she was more annoyed or amused. “I haven’t used them before at all,” she said primly, and then added, for no reason she could identify, “That happened before we got to the North.”
“Before you presented,” he said like he was coming to some grand realization. “That’s why.”
Katara rolled her eyes. “Why what?”
“He didn’t knot for you. Probably had no idea what a treasure he had.”
For a second, Katara stared into his dark, soft, golden eyes, and her mind lingered pleasantly in the scents of his pride and wonder and... smug self-satisfaction. Then she curled her lip.
“I never said he was an alpha.”
“He was though,” Zuko said, his mouth sliding up into a smirk. “Just not a very good one.”
“Pff! Yeah, okay, and I guess you are a good alpha?”
“I might be the best alpha,” he said, smugness rolling off him now.
“Why, because you sensed me from a day’s ride away? It was windy! You probably just-”
“No, because I was knotting for you way before anybody else.”
When the words came out of his mouth, he was delighted with himself, but it seemed the second he heard them aloud, he was mortified. He stared at her, wide-eyed, and clamped his mouth shut tight. All those proud smells suddenly turned to shame. A big red spot appeared on his cheek.
Katara’s smile spread out, slow and predatory. “What does that mean, Zuko?”
“Nothing. It’s just my alpha, making me dumb. Forget I said anything.”
“How can I forget when you’re the best alpha?” She emphasized the last two words with pouty-lipped mockery.
This time, the pulse inside her was definitely him. He raised his hand off her leg and laid it over his eyes.
“So, as the best alpha,” Katara pressed, delighted when he pulsed again, “when did you start knotting for me, Zuko? Was it after the Spirit Oasis? Is that how you noticed me then?”
His mouth pulled up, a tight, crooked frown but his knot kept pulsing as she needled him. “Katara...”
“No - it was before that, wasn’t it?” She couldn’t resist leaning in close, smelling his irritation and embarrassment and arousal rise off his skin. It was like discovering someone was unexpectedly ticklish. Katara smirked against his jaw, whispered near his frowning mouth. “Was it that time you tied me to a tree? Did you get a good sniff then, Zuko?”
“You’re the worst kind of girl,” he snarled.
“It’s just occurring to me,” Katara said, grinning against his throat, “how comfortable you looked yesterday coming out of a bending stance with a huge erection right in front of me. Had a lot of practice with that over the years, armor guy?”
He just growled at her. Which sounded a lot like confirmation.
“But you still didn’t know I was an omega, huh? I guess this means your alpha must be pretty smart. But then... it kinda makes me wonder,” she purred, sliding her tongue out to taste the sumptuous skin over his gland, “who really brings the dumb to the party, Zuko?”
Suddenly, he rolled her on her back and, still bound inside her, let his weight press between her legs and force them out wide. He glared down at her, pink-cheeked and smelling like vengeance.
Katara stared up at him, mouth open in a little shock - and a little more arousal. She wasn’t really thinking about it, but her heat hadn’t quite rebounded yet - his knot lingering inside her was still staving it off. She was just teasing him, and it was fun. Arousal had built in her all the same.
“I’m actually really glad we could have this talk,” Zuko growled. With one hand, he firmly pinned one of her wrists to the bedding by her shoulder. With the other, he slid his fingers between their bodies to tease around her clit. “Because, since the Spirit Oasis, there have been few things that reliably give me as much pleasure as the thought of fucking that smirk off your face-”
He ground his knot inside her and Katara groaned from her belly. It was so achingly agonizingly tight but it felt so good and with his fingers working her clit at a quick pace, she found herself squirming and grunting, sliding her free hand down his chest and over his shoulder. He dropped his mouth down to suck hard on her nipple, laving it fiercely between his teeth, then spoke against her flesh as he kept on her clit with devastating persistence.
“-and now, thanks to my smart alpha, I get to actually do it.”
He sucked hard on her other nipple, growled and let it pop out of his mouth. Katara stared down at him, unaware of how her mouth still hung open and her eyes sparkled. Zuko worked her clit and drank in her expression and smirked.
“What, no insults now? Come on, Katara. Give me your best shot. I can take it.”
“Zuko,” Katara puffed, struggling to think past the quivering tension building outward from her buzzing clit. “You- oooh...”
“I didn’t catch that, Katara. Were you gonna tell me again how dumb I am? Or maybe you wanna make some pithy comments about what an evil person I am? What a creep I am? Huh? How about that, Katara?”
His fingers slipped off her clit just long enough to dip lower, to gather more slick from where she was leaking now around the stiff flesh still impaling her, and come back more furious than before.
“Maybe you still think I’m here to prey on you? Or did you just mean to say my dick’s too big? Was that it?”
“Ohhh, no...”
“No? Don’t want to complain while it’s still inside you, huh? My knot’s about to go down enough for me to fuck you again. Ready for me to fuck you again, Katara?”
“Aww yeahhh...!”
“Yeah?”
His fingers were still working fast, but something in the quality of his voice shifted, gentled.
“Gonna come for me first?”
“Yeah,” Katara whimpered, writhing, her fingers grabbing at the short hair on the back of his head. His other hand shifted against hers, interlacing their fingers.
“If you come for me now,” he murmured against her throat, “I’ll fuck you as many times as you want.”
“Kiss my neck!”
And he did, his hot mouth opening on the side of her throat. Katara quaked on the brink of release as he mouthed down the side of her neck, then sucked on her gland.
She came with shattering force, clamping down tight again on his softening knot. Zuko ground his hips against her, extending her release. Katara moaned and writhed and it was only as she was coming down a long moment later that she realized she’d been pulling his hair.
His tongue dabbed softly at her gland, his teeth scraped lightly past.
And she kind of wanted him to bite her.
But then her head cleared and she pulled her fingers out of his hair and up to rub down her face as she caught her breath.
Zuko kept breathing steadily against her neck. He smelled like heavy turmoil, arousal and anxiety and anger for the most part, but under that was a deep note of hurt. With studied casualness, he withdrew his fingers from hers. It gave her a sour feeling in her stomach. She felt him tug experimentally, but his knot must have swollen again because it was caught firm inside her. She winced a little at the sensation, then folded her arms around him.
He stiffened, then heaved a deep breath and, slowly, relaxed into her hold. His turmoil scents eased slightly. The hurt and anxiety began to dominate, though, and Katara... found herself troubled by that.
“I know you’re not actually dumb,” she sighed at length. She stroked one hand down his spine, then back up to brush through his surprisingly soft hair. “Or evil. And I know you’re not here to prey on me. You clearly have... some kind of moral code, at least about some things, and you... do actually try to listen to me even when... you might not want to... so... I guess you’re not entirely terrible.”
Zuko remained very still in her arms. His breath against her neck kept steadily on.
“And the size of your dick is... obviously fine. I’m clearly perfectly capable of... enjoying it.”
He let out a hard little breath that might have been a huff or a stifled laugh.
“And if none of that is the problem,” Katara pressed on, toying a little with the hair at the top of his neck, “then I guess... maybe I did tease you kind of hard...”
“You didn’t,” he said quietly against her neck. “I like it when you take shots at me. And criticize and goad... It’s... provocative. Makes me want to prove you wrong, or...” He sighed and turned his face away slightly so his breath no longer warmed her neck. “Don’t coddle me. I’m the one who overstepped, Katara. That obviously wasn’t... part of your heat. That was me, letting my alpha be an excuse to do what I wanted to do anyway. I’m sorry.”
“Oh. Well... I... wasn’t exactly telling you to stop...”
Zuko pushed himself up so he could look down at her with narrowed, irritated eyes. They weren’t any clearer than they had been, and rather than the sharp look he might have wanted to give her, he just looked... troubled. “No. But you’ve been pretty clear that you don’t want me, Katara. I’m here for your heat, because you needed help. Even though you didn’t want it from me. You’ve invested trust in me and you’re granting me the privilege of seeing you through this heat. For me to use that as an opportunity to fulfill my own selfish fantasies is... pretty shameful.”
“Oh,” Katara said, taken aback.
The distinction he was making was one she had certainly started out with. Her omega wanted Zuko. Katara just needed him to stop the pain. But at some point, she was realizing, her omega’s wants had stopped seeming entirely distasteful. Zuko had started to seem... She’d actually started to think...
She... had just been holding Prince Zuko and stroking his back like he was someone she needed to comfort! She had teased him and nuzzled his neck until he snapped and rolled her on her back and- and brought her to orgasm on his fingers while he smirked and growled at her. Zuko had done that - not his alpha.
And Katara - not her omega - had enjoyed it.
It filled her with a tangle of mixed feelings. Her own anxiety and anger, shock and dismay, fear... and soft feelings that didn’t bear acknowledging.
Suddenly, she couldn’t hold herself separate from her omega as cleanly as she had thought she could... maybe because Zuko had insisted on her being herself for so much of it! He’d made her ask for his help, wouldn’t accept the request from the omega. He had waited and tormented her omega with his denials until Katara was conscious for the first time he knotted her, had demanded she tell him she wanted it from him by name...
He really was being a bully, insisting she take ownership of what she might otherwise pretend her body was just forcing her to want. He wouldn’t let her just be an unconscious, blameless passenger for her heat. He couldn’t just let her have that!
Because Zuko didn’t just want the omega. He wanted Katara. The realization shocked her more deeply than it probably should have. Of course it wasn’t enough for the omega to want him back; he wanted Katara to want him, too. And now, here he was, telling her he had overstepped, he had taunted her and stroked her to orgasm because he wanted to, and his alpha and her heat and his knot still hard inside her had all just been an excuse to go ahead and do what he really wanted.
And because he was making such a big stinking fuss about it, Katara was forced to acknowledge her own desires, too.
What Zuko had said he really wanted to do, what he had apparently fantasized about doing since their fight at the Spirit Oasis, was... fuck the smirk off her face. Because he found her provocative. Not overbearing or mothering or controlling. Provocative. The thought had a pleasant feeling welling in her belly and a blush warming her cheeks.
And that... was not okay.
Thankfully, this was the moment when his knot finally went down enough for him to withdraw. He slipped out and sat up, then immediately turned to rifle around in her pack. Katara nearly said something, but then realized he must have gathered up the dropped water skins while she was sleeping because they sat nearby, handy for when they were needed.
Finally, he withdrew the pouch of jerky - only instead of taking any, he just held it out to her. Katara hesitated before sitting up and reaching out, then stopped as his stomach emitted a vicious gurgle. His glare just got harder.
“Take it. You’ll need your strength. Your heat’s gonna start building soon.”
Katara took the pouch, but she also looked again at his hunger-stripped belly and chest. She held out a piece of jerky for him. “I’ll eat some if you will.”
It wasn’t compassion, she told herself. He wouldn’t be much good to her when her heat got bad if he fainted from lack of nourishment.
Besides. This had just become a contest of wills.
His eyes flicked down, then back up to her. “You don’t have enough food here for two people. It’s more important that you-”
“I don’t eat next to people who are starving.”
“I’m not starving. I can go a few days without food. I can deal with it. Your heat is gonna require way more fuel to keep you going.”
“I’m not eating if you don’t eat, too.”
He scowled at her, but he took the piece of jerky. He didn’t bite into it until she was chewing on her own strip. Then, he seemed to inhale it. Katara watched from the corner of her eye. Still chewing, she held out a second piece of jerky for him, but he didn’t take it.
“I’ve been robbing people,” he said abruptly. He scowled at the edge of the nest, smelling like shame, then surprise and embarrassment, then determination. “That tunic. I took it off someone’s clothesline.”
Katara’s eyebrows crept upward but she didn’t comment. Zuko just went on, seeming unable to stop.
“I stole the ostrich-horse from a family that shared a meal with me and my uncle. And when my uncle tried to talk to me about the stealing, I left him behind. An old man. I just left him. I haven’t seen him in months- I don’t even know where to start looking for him now. I don’t even know if...”
Katara watched and listened, taking in his sad, anxious, angry scents and the tense way he knelt with his fists on his thighs and his glare fixed on that neutral point away from her. His eyes weren’t clear. He wasn’t wholly in control of what was coming out of his mouth - probably wouldn’t have admitted to his life of crime at all if he had - but she got the feeling he also just needed to say this to someone.
“My alpha wants you to know this stuff because I’m a fighter and a survivor. It thinks... you’d find that enticing.” His frown got tighter. Every muscle in his arms and chest seemed to strain. “But I’m telling you because you deserve a warning. My moral code has been anything but clear lately. And I might not be evil, but I haven’t exactly done a lot of good, either.” His eyes shut tight. “Even when I do, it blows up in my face and nobody ends up happy.”
He turned his eyes sideways to look at her. He was faced at such an angle that she mostly only saw his scarred side, terrible and twisted. “I don’t need your pity or your charity, Katara. I just need you to remember who I am.”
“As if I could forget.”
Katara huffed and tucked the piece of jerky back in the pouch, then tossed it down. She wasn’t hungry anymore. She was... her skin was... broiling. She wasn’t hungry but she was so very, horribly empty. The omega was crashing and booming and thundering her demands - and meanwhile, here was Zuko, suddenly deciding to be so unexpectedly open and human. Drawing lines of honor and principle that hemmed her in, too.
...it felt like some kind of trap. Like the omega was going to take over and Katara would return to herself later to find she was doing all manner of things she didn’t want to want to do but did and crossing whatever lines he was drawing and- and what would happen if she found herself on the wrong sides of those lines? With Prince Zuko?
She could tell the moment he scented her returning need. He had been watching her askance with his expressionless scarred eye, but then he blinked and his head turned more fully in her direction. His other eye opened a little wider - but they both simmered with his answering hunger.
And the sight of it made her throb. For him. For Prince Zuko, who fucked her like her pleasure was the most important part. And who fantasized about her because he found her provocative. And who was still trying to capture Aang, even when he was scrounging and thieving to survive.
It all just made her so angry.
“You’ve made it absolutely impossible for me to get through this with any dignity at all,” she snarled. “I could have just blamed all this on my omega and let it take over and just- not been forced to be the responsible person in the room for once!” She reached out and gave Zuko’s shoulder a hard shove.
He fell back on his hip, staring at her with both eyes suddenly wide.
“And instead you need me to be considering your feelings and looking at you and knowing who you are - like who you are is so important! Like you’re some kind of big deal!”
“It’s not about that!” Zuko snapped back.
“Crown prince of the warmongers! What a badge of honor!”
He just watched her, scowling now, but with the hunger still in his eyes. Katara felt a feral force building up in her. The omega was trying to assume control again, was welling up past her chest and throat and lapping at her cheeks trying to swallow her down - but Katara refused to go down. She was in the middle of a discussion with Prince Zuko, and she refused to just allow herself to start begging him to impregnate her.
This situation needed to be managed.
“Katara...”
“Just shut up,” Katara spat, reaching out to shove him again, “and do what I need you to do.”
He caught her wrist before she could touch him and just glared at her for a few tense heartbeats, mouth tight and nostrils flared. Then, so fast she couldn’t even manage a reflexive resistance, he pounced.
Katara found herself with her face rubbing the bedding as he hauled up her hips and knocked her knees out wide. His fingers sank into her, so achingly good Katara choked out a broken moan.
“Is this what you need, Omega?” he demanded, spreading her open with those hard fingers. His quickly-stiffening cock brushed unobtrusively against the back of her thigh.
“No, Alpha,” she hissed, still not wholly lost to her heat but close enough to desperate to pretend. “I need you to fuck me. Do it right!”
His fingers withdrew and he fumbled hurriedly, then notched himself and, without warning, shoved in. Katara made a sound between a squeak and a growl, immediately pushing back against him. He got a grip on her hips and launched into a punishing fast rhythm. He was growling words she only half-heard over the sound of their bodies colliding.
“Just need to be mounted and fucked, huh? I can fucking do that, too, waterbender. No fucking problem. Your cunt feels even better now, starting to really get fucked open, aren’t you? Feel good? Finally getting what you wanted? Huh?”
In fact, his pounding rhythm sent dazzling shocks through her with every beat, had her straining to spread her legs wider, to open even more for him. His ramming cock forced more and more of her slick out to spill down her thighs and his balls kept slapping wetly against her clit in compounding bursts of sensation. It was the best sex had ever felt.
But Katara was still so angry.
“Oh, Alpha,” she sneered breathlessly into the bedding, trying to push up with her arms so she could shove back against him harder. “Are you in yet? Because-”
“Stay down,” he snarled.
His hand was suddenly around the back of her neck, pinning her to the nest. Katara made a faint choking sound and felt a pang of worry as her breath came harder. Almost instantly, Zuko let her go and got a fistful of her hair and held her head down that way. He had to hunch forward over her to reach, and it changed the angle of his unrelenting thrusts, but he picked up the pace, fucked her even harder. Katara moaned through her bared teeth, her eyes rolling up involuntarily.
“This is what my alpha told me to do from the fucking start,” Zuko snarled. “Force you down and mount you like some mindless animal. Now, according to you, I’m the fucking bad guy for not doing that because I wanted your consent? Rrh!”
He shoved himself upright again so he could grab hold of her ass cheeks and yank her back on his cock with even more force.
“Fucking- impossible- girl!”
Katara was getting close. She was panting hard from her gaping mouth, clawing at her nest around her, barely choking back the blubbering pleas her omega wanted to voice. She reached between her legs and started rubbing her clit. His balls, tightening up as he approached his own climax, struck the backs of her fingers - then suddenly stopped.
“Oh no,” Zuko growled against the nape of her neck. His hand was suddenly clamped around her wrist, dragging her fingers away. Katara whined out a wordless protest. “You don’t get to chew my ass for trying to let you keep a little control and then just go back to making decisions when you start feeling a little frustrated.”
His cock was huge and pulsating inside her but remained horribly, wretchedly still. Katara tried to writhe her hips against him, desperate for stimulation, but Zuko was pressed so firmly against her, there was almost no room to move. He remained as merciless holding still as he had been in motion.
“Rrh!” she snarled against her other forearm. “If Alpha isn’t gonna make me come, then I have to-”
“Wrong.”
Slowly, easily overwhelming her token struggle, Zuko pulled her hand behind the small of her back, then grabbed the other from under her face and dragged it there too. He clamped one of his big hands around both of her wrists and held them there. Then he braced his other hand against the nest near her face.
“You’re no longer the responsible person in this room,” he said against the back of her shoulder. The anger and frustration in his scent faded, fed into his musky arousal smell. “I’m in charge now. Everything that needs to happen - I’m gonna make it happen. Your one job is to take my knot and come on it like a good omega.”
The words shot through her, and Katara found herself struggling in a new level of desperation. The pull to give in was all-consuming and her drive to deny it was equally animalistic; she was waging a war with every breath.
“Huhh,” Katara groaned into her bedding, shuddering and angling her hips to try and close her thighs together to clamp just a little harder around his cock - but her legs were spread too wide and weighed down firmly. No matter how she writhed, she couldn’t get what she needed. A tiny, choked “Please...” forced its way through her teeth.
“Please what?” Zuko leaned in close, his cheek brushing her ear. It put more pressure on his cock, digging it ever so slightly deeper into her. “I didn’t hear you.”
“Fuck me,” Katara panted. “Ohh, just fuck me already, Zuko.”
“Mmm,” Zuko sighed against the side of her neck, ducked his chin down until he was sampling the air over her gland. “I want to. But that sounds like an order, Omega. And you’re not giving orders right now. What’s your one job, Omega?”
“Rrr... Zuko...!”
“Tell me what your job is and then Alpha is gonna make you come.”
Katara gritted her teeth, but the words came out anyway. “...take your knot and come on it...”
His hips gave the tiniest thrust, then stilled. “Louder. Or that’s all the fucking you’re gonna get.”
“Hrrrah! My job is to take your knot,” Katara half-snarled and half-whined, “and come on it like a good omega.”
“That’s right,” he purred, his hips starting a slow but forceful rock.
After the long lack of stimulation, it felt even better, her sensitive inner walls grasping at him with every slow inch he pushed and pulled through her. Zuko’s mouth dragged along the width of her shoulder and he lightly set his teeth in one place and then another. He didn’t bite down, just took the slim muscle of her shoulder between his teeth as if testing, searching.
“You are a good omega, aren’t you?” he asked, his tongue flicking her skin as he spoke through a bite, then released and bit an inch nearer to her neck. “You want to be good for me?”
“Yes...” she panted, her mind going tidal with the waves of his steady thrusts. “I can be good. I’ll be good.”
“Such a strong omega,” he slurred through his teeth, “been fighting so hard for so long.” He changed his bite again and settled his teeth at a point on her shoulder much closer to her neck, to her gland. “Can stop fighting, now.” He bit down a little harder, still gentle but firmer than before. “Alpha has you now.”
Once his teeth were set in the spot he wanted, he abandoned the slow rhythm and began working his hips in short, rapid thrusts. Katara could feel his knot starting to thicken inside her, creating a shivering, wild friction.
“Take it, take it,” he grunted low through his teeth. “It’s for you. Everything I am is yours. I’ll be good for you, too, Omega. Gonna give you the biggest, hardest knot - the knot I made just for you...”
She shuddered in tingling waves of excitement, floating now. “Yesss, your knot... so big... fill my...”
“Gonna plant so much seed in you-”
“Ahhyeesss...!”
“-good, strong seed for my good, strong Omega...”
“Alpha so good...”
“And you’re gonna keep it this time,” he growled. His thrusts turned fiercer, sharper. “No more pushing me out. No refusing my knot.” His bite got suddenly harder, a sharp pain that, for a few cruel seconds, cut the pleasure. “No more bending out my seed.”
Katara’s mind was sunk so deep she hardly understood this, hardly remembered what he was talking about. But from her mouth, her omega was whimpering. “No, Alpha, never again Alpha, so so sorry Alpha...”
“Rejecting my seed, the fucking nerve,” he snarled, “like I’m that half-assed alpha who didn’t even know an omega when his cock was in her.” He fucked hard into her, the expansion of his knot momentarily paused, pinning her with his tight grip on her wrists and his bruising teeth. “I’d know you anywhere, could track you anywhere, catch you anywhere-”
“Yes Alpha! Yes yes always find me! Catch me and fuck me and-!”
“-always hunted you, always knotted big and full just for you, just waiting for your scent to bloom-”
“-knot me Alpha, breed me Alpha-”
“-not gonna let you fly away this time, though, not til you’re good and bred. Marked and bred and mine.”
“Alpha! Yes! Please! Waited for you, Alpha, knew you’d come!”
The quality of his thrusts changed again as he started trying to knot her in earnest. He pushed so hard, her shoulders and cheek chafed against the bedding. She warbled her overwhelmed delight.
“Yes you did,” he growled as he ground sharp and short into her and his knot quickly fattened, “yes you did, good good Omega waited for me, saved your first heat for me, waited so long for this knot, so good-”
She felt the moment he started coming, the molten spill of his release flooding her deep inside while his knot fully engorged and stretched her channel tight. The feeling had her legs pulling reflexively together, squeezing even tighter around the enormous intruder swelling so much bigger inside her as she teetered on the brink.
“That’s right,” Alpha groaned behind her as he ground his knot inside her, his hips flexing in short, hard thrusts as he continued spewing his hot release inside her. “Take it all, Omega. All for you. You’re gonna keep me now. Keep me.”
At his growled words, at the feel of his knot tugging bruisingly massive inside her, she quaked and her own orgasm swept through her, locking her muscles tight around the bulky intrusion in her cunt, binding it in snug. For a long moment, she was blind and deaf to everything but the dazzling sparks behind her eyes. When she returned to herself, all she knew was Zuko behind her.
“Filling you so full,” he grunted breathlessly as he pumped a few final, firm times. His cock and knot went on surging in the liquid heat inside her, rippling bursts of continuous pleasure. “Knotting you up tight, gonna keep all that cum where it needs to be. Gonna make such strong babies. My strong babies. Gonna be... so good...”
Katara floated for a long while. She only distantly felt him lowering them to their sides, hardly noticed wincing at the discomfort of closing her legs on his still-hard knot, and barely noticed him wedge his balled-up tunic between her thighs.
Katara didn’t rouse. It was okay just to float there. Zuko was taking care of it.
At last, he settled and his chest swelled warm and steady at her back while his hands stroked her sore shoulders and hips. His lips dabbed at the tender place where he’d bitten her, then traced across her gland, and the pleasure mixed with the sting in a delicious suggestion. Her cunt occasionally clenched down on him, and Zuko grunted softly, open-mouthed like he was still catching his breath.
At length, she became aware that he was talking, murmuring softly against her skin.
“...middle of this fucking Earth Kingdom backwater nowhere... and you were just here... like some mirage... just waiting to share your first heat with me... for two years... waiting for my knot... stupid, freakish fucking thing... thought I was defective... but it was just you... and your stupid necklace... smelling like... snow...”
His hands were slowing, and they felt warmer than they had, but that was pleasant too, restful. He stroked down her arm and up the back of her hand where it rested on the nest in front of her and Katara caught his fingers between hers, trapped him to stillness in her sleepy grasp.
Then they slept.