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Chapter Text

Chapter 1 The Envoy

Ariel sat in front of the mirror, absently brushing her hair. She was in the royal cabin aboard her husband's ship, the gentle list reminding her of their ongoing voyage. Prince Eric was assumedly at the helm, taking joy on one of their rarer and rarer trips, guiding the crew as they kept the ship on course. It would be a difficult task, the island they were traveling to was fiercely independent, and it would be tough for the Kingdom to convince them of an alliance.

She rose and made her way above deck, reveling in the sea air and the ocean spray. Of course she felt it on walks along the beach by their castle, but there was a different feel out here on the deck of a ship. The rare pang of homesickness struck her, as she realized this was the familiar feeling of her childhood home, even if the years ashore were as close to everything she could ever want.

“Land Ho, starboard heading!” The call wafted down from the lookout, and Ariel had to smile. They had almost reached her favorite part of these trips. The atoll came into view, a little known stopover that Eric had discovered on a voyage some years prior. Now, ever since he’d let her in on the secret, it was a mandatory stopover on all trips that passed anywhere near.

As the ship rounded the point into the sheltered water of the atoll, the reason for the stop became apparent. Crystal clear turquoise waters sparkled in the afternoon sun, the slightest ripples gracing the surface. The water gave way to a white sandy beach that stretched the full interior of the lagoon. A perfect stop over for a swim and a little alone time for the royal couple.

They took a rowboat ashore, just the two of them, as the ship made its way out to sea to give the couple a few hours of privacy. The ship had just rounded the point out of sight when the rowboat pushed ashore. Ariel leaped out onto the beach, letting her toes dig into the soft sand. Eric moored the boat ashore behind her as she surveyed the scene.

She let the wrap drop to the sand, and felt the sun touch her shoulders. She missed this the most from the time before her transformation, the freedom to let the sea air touch her skin and to bask in the afternoon sun in just her bikini. Now with the demands of royalty, she was expected to dress ‘presentably’ in accordance with human customs. But with the ship safely out to sea, and just her husband’s eyes present…

If he were to look her way. He was still fiddling with mooring the boat. She shook her head and dived into the water, her strong legs kicking and sending her out beyond the shallows, leaving her oblivious prince on the shore behind. The former mermaid turned towards the sky, taking in the pleasant breeze and sunlight on her skin as she let herself drift in the calm water.

She felt the slimy brush of eel skin against her left ankle first, but it was the familiar reverbrerant laugh she heard that sent shivers down her spine. Before she could react, the two eels were wrapped around her arms, and pulling her towards the sea witch.

“My dear, it has been too long,” Ursula crooned, emerging from the water as Flotsam and Jetsam pulled the struggling mermaid towards her. Ariel squirmed as she felt her nemesis’s eyes take her in.

“Eric!” She cried out before a tentacle clamped itself over her mouth. “Oh we don't need any of that, angelfish. He'll be here soon enough.” 

Eric's voice rang out across the water, followed by a splash as he swam out in pursuit. Ursula's tentacles wrapped around the princess, tightening across her torso just underneath her breasts. Another two found their way around her thighs, as yet another slipped around her neck, all working to pull Ariel tight against her as she propelled the two of them backwards into the deeper water.

Flotsam and Jetsam darted out ahead of the two, snarling at Eric, but it was Ursula's words that stopped him in his tracks. “That's far enough prince, unless you want your pretty bride to take a long swim she's no longer equipped for.” Ariel's eyes widened as she was pulled down, her mouth and nose disappearing below the water line.

“Stop! What do you want with her?”

Ariel sputtered as she was raised back above the water. "Don't listen to her Eric! She's going termmmph-” 

Her last word was cut off as a tentacle once again covered her mouth. “Just because I allow you to breathe does not mean you get to speak.” Ursula sneered and turned to Eric.

“Once upon a time I offered your wife a deal for 3 days of sacrifice. I am here to offer you a similar deal. You desperately need this alliance to go through, I simply ask for three days of your wife’s time in return.”

Ariel tried to shake her head violently, reduced to a brief jerk by Ursula's hold. To her alarm, Eric seemed to be pondering it.

“What would you do with her?”

A grin spread across Ursula's face. The deal was done in concept, now they were just negotiating details.

“Oh nothing too drastic, simply three days of being my property and slave.” Ariel stiffened against the tentacles wrapped tightly around her, as she saw Eric’s eyes widen.

“I simply wish to sample what you've been enjoying these past years. Such a beautiful lithe princess you have here.” Ursula's hands found the knot holding her captives bikini top in place, tugging softly.

“Mmph!” Ariel tried to protest but the tentacle across her mouth held her mute as her breasts were exposed to the brisk air. 

“I bet you just love painting your wife's tits with your cum.” The sea witch forced Ariel's chest forward, even as Eric looked away. 

“Well…” he stuttered

“Oh dear me, don't tell me the little angel fish has been holding out on you.” She let out a laugh as Ariel stopped struggling, suddenly thinking back on their honeymoon love making. Sheets pulled right around them in the dark. He had pulled out and finished on her stomach the first time, but she made him finish on the bedsheets or in his hand after that. She had never let him ‘paint her tits,’ that's for sure.

“My darling prince, you are going to get so much more than a diplomatic mission out of this bargain.” Ursula closed the distance between them, using six of her tentacles to move Ariel to the side as she let two creep up Eric's chest. He stiffened but didn't look away.

“I am going to turn your bride into the sex slave she was always meant to be, one worthy of such a… choice royal such as yourself.” Her tentacles delicately ran across his shoulders. “An obedient pet who will fulfill any of your desires.”

“Could you um,” he stammered, flustered as he was gently pulled closer, while his wife looking up at him, half in shock, half pleading. “Could you teach her to deepthroat?” 

Ursula laughed again, and Eric reddened in embarrassment.

“Oh sweet prince, I think we can manage that.” She had him eating out of the palm of her hand. “Now do we have a deal?”

She offered her hand. They made a bizarre tableau in the lagoon. The sea witch in the center, large and imposing, the little mermaid by her side, neatly restrained by her tentacles, reduced to a package to be bartered over. And the prince, reluctantly taking his enemy's hand. A strange trio they made.

“Three days. I’ll…” he stammered. “I’ll come up with something to tell the crew.” He turned and began making his way back towards shore before turning back one last time- “And she must be presentable when you return!”

“Oh I wouldn't dream of anything less.” She leaned down to her captive as he left earshot. “However, there are so many things that full court dress hides my darling. I don't think your hubby would mind anything underneath?”

Ariel tried to call out and get his attention but the tentacle held strong over her lips. She was once again at the sea witch’s mercy. “Now it's time we get you ready for our trip, you pretty thing.” Ursula looped her thumbs under the thin strings of her briefs, undoing the knots and pulling them free before effortlessly repositioning the struggling princess horizontally. She licked her finger, whispered a quiet incantation and began tracing loops around Ariel's legs. Where she traced, gold, glowing bands appeared, constricting first around her thighs and then the rest of her legs down to her toes. 

As more bands appeared, they grew brighter and wider, eventually becoming a solid sheath of light around her legs.

“Something a little different from your last transformation, my sweet.” Ursula said cryptically. Ariel squirmed helplessly as the light gave way to her familiar scale covered tail.

“Alright, enough theatrics. Put her to sleep, boys.” Ariel didn't have time to think before electric shocks seared into her from both sides. The two eels’ tails had lashed against her ribs, sending jolts of electricity through her body. Her last vision was Ursula's leering smile above her as she drifted into unconsciousness.

Chapter Text

Ariel awoke in a small cell. She felt the pressure of the deep and the seawater around her, realizing she must be far from the shallows where they took her. It was a small relief she had no trouble breathing down here, despite the obvious problem of being a captive.

What had Eric been thinking? It had all happened so quickly. She knew the treaty was important to him, but to throw her back into the hands of her greatest tormentor and nemesis? It was a betrayal that threw everything into question.

She didn't have time to ponder much before flotsam and jetsam appeared in front of the bars.

“Time to come with us princessssss” Ariel cowered as they opened the door and swam forward, cornering her. She struggled as they slipped around her arms, but they quickly pulled her out, effortlessly overpowering her.

“Ah cuddle fish” Ursula was lounging in her lair as the poor captive was brought forward. “I trust you slept well”

Ariel kept her mouth shut, refusing to look her in the eyes as she was forced forward. She shivered as tentacles wrapped around her, twisting tightly around her arms and tail. The two eels withdrew, leaving her alone in the witch's grasp.

“Such a delectable toy you turned out to be” The sea witch ran a finger along her captives chin, laughing as she tried to turn away. Her finger trailed down, tracing her collarbone. “Such a treat wasted on your hapless prince.”

“Don't talk about him like that! That's my hus-mmmph!” She was cut off as a tentacle looped across her mouth.

“Talk about him like what?” Ursula asked, sneering. “Like a man who gave up his wife to his greatest enemy for the promise of a silly little treaty.” Ariel felt the coiled tentacles tighten around her, “A man who willingly surrendered his treasured spouse into the hands of a captor who will certainly use her any way she pleases” she dropped a hand to the mermaid’s breast, her palm roughly rubbing her nipple.

“Well of course and that little deal sweetener, deep throat training” she mused, “maybe if you'd managed that on your own you wouldn't be here at my mercy” she pinched both nipples, eliciting a moan from the helpless princess.

“No, I plan to utilize every moment of these next days tormenting you and getting what's owed to me” tentacles once again crept up Ariel’s torso, she shuddered as suckers brushed one after another across her breasts. Ariel couldn't help it as her nipples hardened, and arousal flushed her chest and began to creep downwards.

“Do you feel it now little princess?” Ursula asked with a knowing chuckle. “Not exactly a full mermaid this time around, I thought I’d try something new”

“Its more of a binding spell than a full transfiguration. Your legs are still there, just neatly bound inside this tail form for now.” Ursula's hands ran down Ariel's midriff, her thumbs brushing the skin just above where it turned to scales.

“More importantly, that neglected pussy is still there too” Ursula drew her thumbs in lazy circles, while her tentacles flexed and throbbed as they held the poor mermaid immobile. Ariel squirmed, desperately trying to get away, her captor’s touch and control continuing to stoke the a growing need she hardly dare acknowledge. 

“You see darling, I thought you might need a little… motivation in our training. And while my pets always seem to need a little discipline to stay in line, I have found many who just needed a proper… carrot.”

“Afterr a few hours of careful teasing, constant stimulation, maybe a demonstration of what I can do for them once they submit… most of my subjects make that surrender in quite a timely manner.”

“I…. “ She stuttered as Ursula gently plucked at her nipples, “I’d never obey you”

“Oh sweetie, it's only been a few minutes, and you already seem a little flushed. Imagine what days of this would do to you, imagine the depths of depravity I will push you to when you've been reduced to a blubbering mess. Begging at my mercy for that last touch that will bring you over the edge.”

“No, you’d fall like all the rest of them” The sea witch mused, making her way to a shelf full of potions, her captive entangled in grasping tentacles, brought to heel behind her “But as I only have three days I think a more expedited path is in order” she pulled a bottle from the cache, and threw it into the cauldron at the center of the room.

Dark pink smoke billowed out, and as it enveloped the two of them, Ariel felt every nerve ending in her body tense. It was as if every one of her senses was magnified three fold, and in that moment, touch override everything else. Each tentacle still held tightly around her body, and even as she tried to wriggle free she could feel the muscles underneath the slimy skin coursing with strength. She had little choice as those members brought her back face to face with the sea witch.

She didn't know if it was the potion or something else but she took in her captor’s face anew. Her eyes were drawn first to those ruby red lips, curled in a leering and taunting smile.Her eyes, so far she had seen Ursula's eyes be cunning, darting, ever the trickster and dealer. But a new emotion was overriding all now: hunger. Ariel started as she watched the larger woman inhale deeply in the same pink smoke. If it had magnified her senses and emotions this much, what would it do to Ursula? She realized with a shock and a little repulsion that the thought sent a jolt of arousal though her body.

“Deep throat training, wasn't it darling?” Ursula mused, a tentacle tracing up between her captive’s breasts gently cupping her chin. “How often does he use that pretty mouth of yours” 

Ariel’s vision filled with the sea witch as she closed the distance, running two fingers lightly across her lips. “Show me what a good little cocksucker you are”

Ariel shuddered, her feelings of resistance waning as the effects of the potion worked through her body.. She let her lips part and Ursula pushed her fingers inside.

“Good girl” she purred, slowly beginning to push her fingers in and out. “A good slave is always ready to use their mouth to service their owner” Ariel whimpered, Ursula was too close, her presence overwhelming her, tentacles wrapped around her, coiled strength taking away any chance of movement or escape.

“You want to be a good girl for me don't you…” Ariel felt a tentacle creep up her chest, stopping just short of her mouth as Ursula withdrew her fingers. The princess whined, all too aware of the slimy appendage as it brushed her lips.

“Open” it was barely a whisper, and Ariel obeyed. Ursula groaned in pleasure as the captive’s lips wrapped around her tentacle. She wasted no time, pushing until she had filled the little princess’s mouth.

Ariel felt the tentacle pulse as the tip hit the back of her throat, her eyes wide as the sea witch’s eyes closed in pleasure.

“You have no idea how long I have waited to take that sweet mouth of yours” Ursula purred, shifting until she had Ariel cornered a wall. She began to thrust in and out of the mermaid’s mouth, slowly and first but quickly building to an aggressive pace. Her wrists pinned behind her, her tail firmly immobilized, she had no choice but to take every thrust her captor offered her

“Triapsing about on land, playing clueless arm candy to that feckless husband of yours.” Ursula laced her fingers in her new toy’s hair “When your place was always meant to be here, at my mercy”

Ariel’s response was cut off by the tentacle in her mouth, struggling not to gag as her tormentor thrust deeper and deeper.

“You were going to be my prize, the perfect little slave to train, display, and enjoy” Ursula’s breathing deepened, her movements becoming less restrained. “But we’ll make up for lost time, won't we angel fish”

The little mermaid could only look up with wide eyes, robbed of any choice in what was to happen next. Ursula quickened her pace even more, and Ariel could feel the tentacle start to bulge even more in her mouth.

“Cecaelia cum is quite precious, my little pet, so try not to spill any”

Ariel barely had time to process before hot cum spurted out of the tentacle into the back of her throat. She had little chance to resist as Ursula’s grip tightened in her hair.  Ariel blinked and looked up, watching as the larger woman groaned and thrust, emptying years of frustration and desire into her mouth. She was sure it was the effects of the potion, but she couldn't help as she felt a rush of pride and satisfaction as her captor’s member twitched in her mouth.

“Swallow” she ordered as she came down from her orgasm, holding Ariel’s chin so she couldn't pull away. Ariel obeyed, conflicting emotions churning in her core.

“Good girl” Ursula crooned, “and here’s the other surprise my dear”

Ariel squealed in protest as the tentacle pushed deeper into her mouth, and smoothly into her throat. She went silent in surprise, as the tentacle effortlessly passed her gag reflex, easily taking more of Ursula’s member than she ever thought possible

“I told you it was special,” Ursula said with a wink as she withdrew, letting the princess collapse into a nest of her coiled tentacles on the seafloor.

“I…. I dont know what you hope to get out of this” Ariel said raggedly, still catching her breath “but it wont work” she said the last bit defiantly, even as the frustration building in her said otherwise.

Ursula let out a hearty laugh “Oh, sweet cakes, we haven't even gotten to what I wanted, this was just to satisfy that silly request of your husband.” She absentmindedly stroked her new pet’s hair.

“We need to have you an accomplished deep throater by the time I return you to him” she said, “And I know just the place for you to practice your new skill…”