Then Zeke swore he could begin to see outlines around the rocks and shapes around him, almost as if he was becoming accustomed to the complete lack of light somehow, and things grew brighter and brighter as he stepped forward. As he looked ahead, he realized there was something ahead that was illuminating the cavern ahead. A pulsing light that seemed to emanate with the sound of dripping water. He climbed a bit of rock, like an asymmetrical natural staircase, where the top flattened out into a wide plateau surrounding a huge pool of bright blue, bio luminescent water. Each time a droplet of water would fall to its surface, a shimmering ripple of blue light burst along the surface of the pool from that point. Blue called out excitedly to Zeke, who could now make out his partner clearly along the edge of the pool before performing an elegant dive into the depths, his form perfectly visible through the crystal clear water, speckled with countless bright blue flecks of light, illuminating this entire edge of the chamber and the entire pool of water. Zeke knelt down to watch his friend swim like an elegant torpedo, grinning from ear to ear. Eager to join him for a dip, the trainer began disrobing, removing his hoodie carefully first, folding it so the badges were protected inside it and away from the water before simply tossing off the rest of his clothes over to the side somewhere. His trunks went last, landing unceremoniously on top of his tennis shoes before he dove headfirst into the water after his friend.

The pair swam for a while in the natural cool cave spring, admiring the way the water would glow brighter around each others bodies as they moved. They played, splashed around, and after swimming over to a shallower portion of the pool, the bathed each other. Though they by now had no more shyness around each other, any time they would do something as intimate as this, it was impossible for one of them not to take the affection further.

As Zeke was scrubbing at his partner's armored belly, he could feel the lower portion of his abdominal shell softening. This was familiar to before, but as he continued to rub around Blue's slowly-softening cloaca, he realized he'd never seen it like this. Though the slit inside still seemed just as tight and narrow as before, what began to emerge was clearly thicker than before. Even the usually thinner, almost tapered tip had a more pronounced, almost cuplike rim that constantly drooled a cascade of watery pre. And as more and more snaked out, it was like watching a bright pink, squishy eel emerge – still the same shape he had learned, but nearly twice as long in all directions. Zeke's fingers parted around it as it emerged from under water, tracing along its underside as it pulsated. At the sight of that first bit of liquid pre, Zeke leaned forward and pinched it between his lips, before instinctively pressing forward.

“T-Tortle...” Blue nearly gasped as his trainer made the first move, a rare occurrence. He leaned back against the rocky edge of the pool, watching the young trainer's head slowly bob, inching down more and more. Zeke had only ever attempting deep-throating his partner once and in his over-eagerness the attempt had made breathing more difficult than he'd anticipated. And Blue wasn't anywhere near this size then, but the energy he was feeling in that moment wouldn't let him give up without trying. He breathed slowly through his mouth as he allowed his gag muscles to get used to the feeling of his partner's throbbing member tapping at the entrance to his throat. The quickening, constant flow of slick, salty pre gushing forward helped him to take it as he gingerly pushed forward and let that tapered, somewhat dexterous cock slide deeper into his throat. He took a deep breath as his nose dipped beneath the water, bobbing back up to take a breath before slipping back down once more a bit deeper. Zeke's throat felt like it was stretching wider than before as he managed to take more length than he had before. As he bobbed his head, the edges of his vision were lit by the shimmering blue lights of the pool around them, glowing brightly in time with every small movement they made. Blue couldn't resist an occasional, gentle push forward as his partner would bob up for a short breath and then dive in for more. Zeke's lips stretched wide around what was easily the thickest part of the Wartortle's shaft, as he felt that long length flexing and wriggling deep down his throat before he realized his nose was pressed up against Blue's belly. His heart leapt in his chest as he realized how much cock that meant he had taken down his esophagus.

Blue's long, slick cock was continuing to gush a continuous gout of salty, watery pre directly into Zeke's belly. Zeke relished the feeling of that long, warm shaft filling up nearly half his body before he realized how much warm he felt in his belly. One hand trailed down his smooth chest and abdomen to find a swollen paunch already larger than any full climax he'd taken from his little partner before. He glanced up at his newly-evolved Wartortle to see a look of nearly unconscious bliss on the tortoise pokemon's face, both clawed hands resting heavily on the back of Zeke's mop of messy black hair. As he pulled up, he felt a little bit of resistance from his partner's small, clawed hands. In the next moment, the pokemon's hips pumped upward, forcing the trainer to continue throttling his hard cock within his tight, straining throat, just as the Zeke began to run out of air. With a sudden movement, he began patting against the sides of his partner's shell to snap him out of his stupor.

“War... tortle...” the pokemon was moaning, lost in the feeling of his entire shaft squeezed from base to tip inside something, as he would gently grind his hips in and out. The ethereal blue lights of the pool danced across the walls of the cavern, mesmerizing him in this long, blissful moment until the thrashing in the water beneath him brought him back to reality. He didn't realize how hard he was holding Zeke down until he let his trainer back up, gasping for air as he slung his head back.

Blue pulled his trainer back up onto the rocky ledge out of the water, leaning over him as the boy coughed, spitting up a likely equal mix of water and preseed as he gagged. After a few moments, he calmed down and looked up to see Blue looking down at him with worry. “T-tortle...?”

“I'm alright buddy,” Zeke muttered, smiling a second later before adding, “You've never been this horny before, have you?” He chuckled as a cheeky smile spread across Blue's face. Indeed, even as he had fretted over almost accidentally drowning his best friend and partner, his cock didn't shrink the slightest, continuing to throb and drool in hunger for his partner's insides. The way Blue crouched over his naked companion, his long shaft was pressed against the smooth, wet and warm flesh of the human. Looking down, Blue's face contorted in delight at the sight of his own drooling shaft laying across Zeke's round belly, swollen with his own preseed. The pokemon shivered in excitement – he was going to breed his trainer so much today.

Zeke slowly moved to sit back up, breathing more easily now, just before suddenly trying to dodge away from his partner who was suddenly nipping at his chest. The Wartortle's hands went for his trainer's sides, gently holding his partner down and cooing at him as he began playfully nipping at Zeke's chest and belly. The trainer's bubbling laughter echoed throughout the chamber as he helplessly flailed his skinny limbs in the air around his Wartortle, who was licking and nipping at his his chest and his soft belly, and at his nipples. It wasn't long however before his voice began to quiet into soft panting, as that tongue flicked out more carefully, and those teeth began grazing more softly and gently in certain places – along his clavicle, just at the tip of each of his hardening nipples, tracing just up the center of his chest and along his neck, nipping at his ear.

Zeke turned to look at Blue as their faces grew nearer, and as he did, his companion pressed his lips against his. At first, it felt just as strange as the first time they'd tried kissing – their mouths were just two different sizes – but as Blue gently parted his mouth, pursing his lips to meet flush with Zeke's, and pressing his tongue forward just enough to flit past the human's lips. Zeke moaned softly into the kiss, wrapping his arms around his partner's broad shell and pulling himself closer. As they kissed, however, neither could ignore the presence of Blue's pulsing shaft between them, now beginning to match Zeke's pre-stuffed belly with an outer coating to match.

After a few long moments of this, Blue's own excitement built up in the presence of his wonderful, powerful, beautiful partner. In a quick movement, he turned sideways, rolling the surprised Wartortle under him suddenly into the shallow edge of the water, causing a pulse of blue light to dance around them, reflecting off their wet, shimmering bodies. The ripple seemed to light up the entire cavern in a brilliant blue burst for that brief moment. Zeke held himself above the surprised pokemon with a playful grin. As he had watched his pokemon grow stronger with him, he knew that by now Blue could easily overpower him like it was nothing. Zeke never once imagined that as a trainer, his pokemon's power was his own. When he'd first met his Blue, he'd met a friend, an ally and a partner. He never gave his partner any commands outside of a battle, and even his pokeball had been permanently put do a different use. No, Blue was not his to control or command, and if the audacious little water pokemon ever wanted, he could abandon Zeke, or worse.

Zeke smiled down at his pokemon and saw Blues piercing brown eyes gazing warmly back at him through the reflected light of dim blue, rippling luminescence. He leaned down and met the blue tortoise in another kiss as his hands began to roam adventurously over his partner's body. As his hands trailed along Blue's chest outward, he gripped lightly along the folded rim of the edge of his shell. He traced his thumb and fingers along that white rim tracing a faintly curved line between the hard red shell of his back and the somewhat softer yellow carapace on his chest and belly, running from his arms to his thighs. As he explored the pokemon's new form, Zeke couldn't help unconsciously grinding his hips, pressing his own modest, youthful manhood against the base of Blue's thicker, much longer and slightly squishier shaft.

Blue was clearly enjoying the moment of watching the rare act of his trainer taking control. A certain confidence that he'd begun to see slightly more often exuded from the young boy as he slowly stood up above the Wartortle, water still dripping from his smooth, toned body, illuminated only by the ambient, rippling glow of the hidden spring pool reflected off the elegant solitude of the cavern walls. In the still, cool air, in this moment, the pair had forgotten, or didn't care about their ordeal, if they'd find their way out or if they were trapped forever. In this moment, all they needed was each other, in every possible way. Zeke parted his legs enough to crouch and carefully, using one hand and with a bit of guidance from Blue after the pokemon caught on to what he wanted, lined up that long, tapered pink cock between his round cheeks. The warm, wet feeling of that somewhat squishy, gushing ring of Blue's tip pressing firmly up against that tight little pucker between his thighs and behind his sack, sent a shiver up his spine before he moaned, encouraging his body to yield and let this invader inside to do what it will.

This time the penetration felt much different than it had before when Blue was smaller. Though the pokemon's tip was just as squishy, as it began to push inside the trainer's tight hole, the fact that it was still twice as thick was enough to squeeze the boy's entrance tight. Zeke grunted, shaky on his legs as he attempted to hold his balance still, slowly lowering himself more and more onto this new shaft, one hand still behind him, holding his partner's cock in place just outside of his own entrance. He seethed in discomfort as he felt his ring squeezing tighter than he was used to, much sooner than he was used to. “Blue,” Zeke muttered, breathing a little more heavily, “You're way bigger than you used to be.” His face contorted in a mixture of wincing pain and confounding pleasure that Blue couldn't get enough of. The pokemon was doing his best not to move despite every nerve in his body wanting to grab his trainer's hips and plunge forward.

Zeke could sense anticipation and restraint in Blue. Even as his body was beginning to protest to his determination, he straightened his back and with a deep breath, slowly let gravity take hold. He gradually relaxed his footing, panting rapidly and not silencing his whimpering grunts as his bowels were probed deeper and deeper, prodding into depths not meant for the young trainer's body, and yet every moment of the excruciating decadence was better than any other pleasure to him. Even as tears began to pour down his face, Zeke smiled and moaned as he felt his rump press down flush against Blue's softshelled abdomen, his tight ring stretched red around the thickest shaft he'd ever taken by nearly double. As his body adjusted to the throbbing, pulsating mast of cock piercing his tight innards, Zeke let out a long, shuddering breath, his body relaxing forward over his pokemon's prone form.

“Tortle...” Blue muttered up at him, reaching a hand up to the trainer's face, catching a single tear against a clawed digit. Zeke reached up to grasp the smaller hand in his own, holding it against his cheek as he began to slowly move his hips. “You're so big, Blue... it's filling me up so much.” The words fell from the trainers lips like moans of depraved pleasure, permitting himself this moment of degenerate rapture as his hips writhed with a debaucherous energy. “I... I feel you... so d-deep. It's spreading me wide... filling my body...” His hips began to slam down a little harder with each rolling motion he would make, causing his belly to jiggle a little more noticeably each time, eliciting an audible gurgle from the churning mass of pre continuing to bubble up inside of the boy. The living glow in the water around them pulsed in rhythm to the boy's bouncing hips, sending bursting light cascading across throughout the water and sending dancing reflections across their bound forms and the stone around them.

This whole scene playing out above Blue's body was like the wildest fantasy he'd ever had about his own trainer playing out in reality, seeing his partner riding him so passionately, and there was nothing that he thought could ever make him move from that spot. That was until Zeke leaned down closer and whispered closely into his friend's white-winged ear. “I want you to fuck me, Blue.”

In a bright flash of blue light and splashing water, the pair was once again flipped around in the inches-deep edge of the glittering pool. Blue took charge and flipped Zeke over onto his belly in the shallows, the blue glow of the water trailing along the gentle curves and smooth details of Zeke's prone form. The trainer gasped as his partner's cock suddenly slipped out of his rear with a wet slurping sound. Blue pulled Zeke onto his hands and knees before stepping around behind him and giving one long, lecherous slurp between those soft, smooth rump cheeks. He could taste his own salty flavor as he dipped the tip of his squishy red tongue past that soft, red ring. After teasing his partner for a bit, he pulled away, slowly lined up his cock with Zeke crouching just a little lower to meet his height, then with a sharp cry, plunged forward, driving his cock deep into his shivering, moaning trainer, burying himself more than halfway before pulling a shallow amount outward and plunging the rest in immediately. For Blue, the careful concern was gone. He'd seen his partner's determination and drive, and he wanted to match it, to break through all of their limits. As soon as he hilted himself inside the fully encompassing, velvety warmth of Zeke's insides, he started pounding his hips back and forth like a wild animal.

The lewd cacophony of whimpering, moaning, wet sliding and slapping sounds echoed off the invisible recesses of the massive, isolated cavern around this human and pokemon as Zeke and Blue found true pleasure and fulfillment in each other. “Nng- Harder!” the trainer would moan, and the Wartortle would huff and oblige eagerly. Soon, the pokemon had one of his trainer's thighs lifted up with one clawed hand as he plunged downward into that gradually-more-yielding little hole, each of their forceful, desperate movements causing a cascading lightshow of brilliant blue in the splashing shallows around them, sending glimmering water to glow on their bodies and the stones around them before it would fade and burst to life once more with their thrusting and writhing. Zeke lost track of time as he stopped noticing the continued gurgling and swelling of his belly as his insides continued to flood with his partner's seemingly endless flow of salty, watery preseed, swelling his belly just a bit more until he suddenly felt a change in Blue's rhythm. As he was going to look up at his partner, he instead found himself shoved down into the stone floor as his partner began to driving into him with more force than he'd ever felt from his friend before, plunging into his guts harder and harder. Zeke felt something deep within him growing tighter and tighter, and his eyes snapped open wide as he suddenly remembered his partner's flare. His inner passage was squeezing tighter and tighter around Blue's rapidly thickening and hardening cocktip, expanding much wider than it had before and making a visible bulge even through the pre-filled bulge of Zeke's usually slim, toned abs. Still the trainer had little time to react other than a loud groan as the pokemon continued thrusting harder than ever, attempting to mine deeper until Blue finally slammed his hips forward and held himself there.