As Blue threw himself over that precipice of climax, he let out a powerful jet of water from his mouth up towards the ceiling of the cavern, building into a cascade as the water rained down on them, alighting a nebula of blue light in the pool around them. Inside Zeke's bowels felt a similar blast as what had been a steady flow of gurgling preseed suddenly grew and burst into a gushing torrent of somewhat thicker, warmer pokemon cum, flooding his piping and pouring directly into his sloshing stomach. Zeke could only gasp for breath as his brain was fried from sensation overload, equating every sensation his nerves picked up as the same form of sexual pleasure, and that long pokemon cock that was stuffing him full of cum and wrecking his insides with its massive flare was the source of his rapture. Still drooling and huffing into the dirt and gravel of the stone floor, Zeke came harder than he ever had before while cradling his still-swelling and churning belly in both arms. As he released his own modest spurt of creamy white cum onto the cold stone beneath him, that thick, firm flare made sure that not a single drop of Blue's copious, warm frothy load leaked from inside of his partner.

The pair remained like this for a while, Zeke crouched and bent over with his swollen belly in his hands as he panted for breath, and Blue trying his best not to fall over his human partner. After a time, he tried to move backward, beginning to pull out slowly. From the dancing blue light of the naturally glowing cave spring, he could see the abused flesh of Zeke's ring stretching and tugging outward a bit around his long, pulsing pink rod. To Zeke, it felt strange as that still-flared tip slid somewhat forcefully out of his guts, the suction and tightness tugging at his innards all along the way in a weird but pleasant way. And then, the pair felt resistance. Zeke let out a surprised whimper as he felt a firm, dull tugging inside his pelvis, as that flared head reached a passage it could not slip through. Blue paused for a moment, gently pushing forward a bit before attempting to pull out again, a bit harder. They both groaned as they felt the same resistance. The Wartortle tried this again, sliding himself a bit further before yanking his hips back even harder, this time to the yowling protest of his trainer.

Zeke chuckled tiredly after a moment, “I told you... you were big. Maybe a little... too big, huh?”

Blue chortled softly, looking down at the smooth, blue-lit, slender back of his panting, shuddering, sweating trainer - bred, filled, and now essentially corked by his thick, flared cock. It was enough to send a revitalizing jolt through the Wartortle's shell. His cock pulsated noticeably inside Zeke, and the boy perked up a bit. “B-Blue, what are you...?” His sentence faded away as he felt that cock plunge forward once more, this flare stretching and contorting his insides along with it. After another moment, Blue pushed himself closer, completely flush with his trainer's soft ass, before beginning to coax the trainer into rolling over. Zeke was hesitant to contort and twist his body around with a still-flared and pulsing cock impaling half his torso, but slowly he rolled over and Blue stepped over his legs to remain stuck deep inside his trainer. Then, the pokemon lifted the human's smooth legs up and pushed forward, until Zeke's knees were above his head and his view was filled by the head of his own half-hard cock laying against his very round, sloshing belly.

Blue had a huge, enraptured smile across his face as he began breeding his trainer once again. The pistoning of that fat, flat plunger-like flare was hard to absorb for Zeke, feeling like there was heavy machinery working inside his bowels, contorting, stretching, and rearranging his inner tunnels as it saw fit, lubricating and coating every inch of his passage along the way. The pair were at it for much longer this time. The feeling of their warmth filling the otherwise lifeless air around them, the sounds of their lovemaking echoing and filling their ears, the eerily magical lights of the bio luminescent pool of water serving as the only source of light in this den; Everything about this place and this moment cemented itself as the first time Zeke knew he never wanted to spend a day without this pokemon. He'd be truly lost without his partner, and he was happy to give himself like this entirely to the one that fought for him every day.

Zeke cried out in an overwhelmed sensation of pain and pleasure as he came a second time and then a third onto his own chest and face, all before Blue finally hammered forward one more time and released a second massive load of potent, seawater cum into Zeke's already-flooded belly. With each audible gurgle and swelling inch of his belly, the young trainer thought for sure he had reached his limit, but still more kept coming until he looked like he could very well be carrying his partner's baby. The thought of an egg, or even a clutch of eggs filling his belly brought a shocking excitement to his mind as he grasped at his bare belly, pressing inward gently to feel the watery squeezing and tightness, as still his partner's tightly-corked flare kept even a drop from draining.

Without another word, Blue collapsed next to Zeke, fully-flared cock still half-buried inside his partner. Zeke immediately wrapped his still-shaking arms around the wide-shelled body of the only pokemon in the world he'd ever need. Within minutes, the two fell fast asleep locked in a lover's embrace, cloaked in the faint blue light of the pool and the silence of the emptiness around them.

An unknowable amount of time passed before Zeke finally awoke, sore and still very tired. The first thing he noticed was his belly, still rounded and squishy, but not as swollen as it had been, since his hole had since been vacated and slowly leaking the salty seawater-like cum. He slowly rolled onto his hands and knees, then remembering he was still in the water as the movement sent a bright wave of light, so brightly contrasting with the pitch black around him that he winced until he could get used to the shimmering bright blue light. He reached back with one hand to try and plug up his own rear, wincing at how sore that soft ring of flesh felt. With a bit of glancing around, he found his hoodie folded up at the pool's edge. Reaching into it, he found what he was looking for in one of the inner pockets. He withdrew his old pokeball from when he first took his young Squirtle with him on his journey. He kissed it softly and carefully reached it back to his rear before pressing its cool metal surface inward. It slipped inside him easier than usual. As he stood up, he hoped that he hadn't gotten too loose for it to stay inside him, but as he took a couple steps and flexed his abdomen, he decided it would stay put. He sighed softly, warmly feeling at his still-full belly with a smile before looking around.

“Blue?” He called out, his voice echoing back from what sounded like a hundred different directions. How big was this cavern, he wondered. Was there a tunnel connected somewhere? How far underground were they? Did anyone know they were down there? What if there was another cave-in?

“Blue?!” Zeke called out more frantically. Now as he looked around the cavern alone, even the calming natural glow of the spring couldn't distract the trainer from rapidly settling panic. “Blue where are you? Please come back!” A soft lump grew in the young trainer's throat as he stood naked and alone in what seemed like an endless tomb. “B-Blue...?”

“Tortle!” A splash came from nearby, grazing his faint dark vision with a flash of blue bio luminescence and Zeke spun around to see his partner stand next to him as if he had just leapt from the spring, which from the look of his dripping body he had. Zeke dove forward, embracing him tightly and rubbing their faces together in relieved affection. “I was afraid you were gone, Blue!” The pokemon patted his trainer's head gently, then nibbled at his ear playfully, making the trainer giggle and release him quickly. With a bounce, Blue motioned at the trainer's gear, signaling him to get dressed. “Did you find something, buddy?” Zeke intoned curiously. The Wartortle simply gave him a confident wink before grabbing the trainer's trunks and tossing them in his face.

Zeke got dressed as quickly as he could, slipping once or twice on the slick rocks before standing next to the pool of water with his partner. Blue looked up to his trainer. “Tortle,” he said briskly, before swaying his tail in Zeke's direction. He made a motion with his own clawed hands, signally to grab hold of his long, cloudlike curly tail. Zeke did, and no sooner had he grasped on tightly than the Wartortle dove forward, pulling Zeke into the spring with him. As they leapt forward, Zeke's instincts kicked in and he took a huge breath. It was incredible how quickly and powerful Blue swam through the water, even pulling a human with him by the tail.

Zeke watched in wonder as they zipped down through the pool of water, plunging down deeper than he realized the pool went. Thanks to the brightly glowing blue lights surrounding them, he could see the rocky walls around them getting closer, and closer still. Zeke started feeling a bit of oncoming claustrophobia, but did his best to contain himself as he was pulled through a long narrow passageway underwater. He thought he could taste a faintly growing taste of salt in the water, but he imagined it may just be the lingering sensation of Blue's seed. They followed it through a number of twists and turns, Blue confidently jetting past several forcing passageways and narrowly threading them through an every-narrowing passage. Zeke held onto his breath valiantly, though the burning in his chest was growing. He wouldn't last much longer.

They flew through cracks and crevices, a path that Zeke's eyes could no longer follow as his lungs began to yield. His vision blurred and faded as his chest began to burn. Blue rocketed forward desperately to reach the exit in time, then stopped when he felt his partner's grip slip. He turned, seeing nothing but the faint glow of the blue glowing algae around himself. In a fit of panic, Blue swam back the way he came from, beginning to make more motion around himself to activate the glow of the otherwise invisible algae, anything to get any amount of light to fill this deep passage of darkness. Seconds passed like minutes as Blue's eyes desperately searched the depths until finally, his keen dark vision spotted a trio of faint glimmers in the deep. He swam to the reflecting light of the badges he and Zeke had earned together, pulling his partner's limp body closer to him. Zeke's eyes were closed and he didn't move an inch as tiny airbubbles continued to escape from his slightly agape mouth. He looked lifeless.

Without a moment's hesitation, he pressed his lips flush against his trainer's. Then, in a burst of pure instinct, the Wartortle inhaled sharply, instantly draining Zeke's airways and lungs of water before swallowing it and exhaling into his mouth, filling his chest and lungs with warm, fresh breath. In an instant, Zeke reeled back to life, writhing for just a moment before catching his bearings. He couldn't make out much else but Blue's face in front of him and the duo hugged once more. Then, Blue once more met his trainer's mouth with his own and the two shared not only a warm kiss, but a fresh flow of air as the Wartortle filtered the oxygen from the water in his own lungs to give to Zeke. After a minute of this, Zeke's body was no longer shaking and Blue began to lead him out once again.

They took their time this time, occasionally stopping for Blue to share some breath with him, and maybe cheekily slide him some tongue and tease at his swollen belly, before they soon passed through a small exit covered by a patch of seaweed. Instantly the waters opened up and they saw light coming from above. They swam upward, both of them awed by how deep they had actually been. The two raced to the surface, Blue tagging back and circling around his trainer teasingly before both of them broke the surface simultaneously. They laughed and hooted and hollered in celebration at the sight of the rising sun on the eastern horizon of the sea. The waves around them lapped at their bodies shallowly as they looked around. They saw a boardwalk not far away, and in an instant, Zeke knew where they were. “We made it! We're just...” Zeke looked around to be sure, “Just South of Lavender Town!” Blue shouted out in excitement as well, the two of them hugging eachother tightly as they tread water. Just as Zeke went in for a kiss, they heard someone calling from the dock. “How'd you two get out there?!” Blue and Zeke turned their heads quickly to see an older man, dressed in a typical fisher's outfit, scratching his head under his hat with one hand and holding a fishing rod over his shoulder in the other.

Zeke smiled, waving back at the man, “We uh, it's... endurance training!”

“Tooortle!” Blue confirmed.

The man scratched his head for a moment, then shrugged. “You guys just be careful!” he called back to them as he began casting out his line again. “Underwater caverns around here can cause whirlpools. Just don't get sucked in,” he warned before going back to ignoring them.

“We'll be careful!” Zeke didn't hide his giddy laughter as he and Blue swam toward the boardwalk. “Did you know you could do that?” he asked his partner. “Tortle?”Blue asked. “You know, the breath thing.” Blue was silent for a moment before giving a halfhearted, “Waaa.. W-Wart... T-tortle?” Zeke laughed and grasped on to Blue's shell, letting his partner to the rest of the swimming for them. “Well, that was the second time you saved my life, you know.”

“Tortle!”

“I love you too,” Zeke chuckled. As they pulled themselves back onto dry land, the pair made their way north along the boardwalk, following the signs north to Lavender town. Zeke and Blue, the undefeated duo, continued on their way to the fourth badge of their journey. The pace was set, the goal was in sight. Nothing was going to stand in their way of becoming the greatest duo in the history of the Pokemon League.