There was a clunking through the steam tubes as they got up to pressure, and the door down opened with smooth hiss. They were on floor 4 of the Deep Sea Research Facility, slowly making their way down to... some kind of undersea ruin? If the place had _Bahamut himself_ guarding the _entrance_, who knew what lurked in the depths?

Zell peered down into the room below, down the stairs from the steam hatch. Muted light spilled in from the enormous windows, but as they descended the light through the water grew fainter and fainter, until they only cast strange shadows all across the walls.

Zell ducked his head, taking a few steps down, and looked back at Squall and Selphie, still peering at the terminal they'd used to open the route. "Well?" he said. "We going?"

"There's--" Squall started, brow furrowing, and then there was a loud _bang_ as some old, unmaintained steam tubing blew. The lights all flickered, and the door between them, no longer pinned open by steam pressure, snapped shut with a _bang_. Zell jerked back, face only a few inches from the edge of the hatch; the thing had nearly snapped him in half.

"Uhh," came Selphie's voice, muted through the door. "You okay?"

"Yeah, I'm fine!" Zell had to yell a little to be heard. "Uh, can you reopen the door?"

"The reading says steam power's at 2 pressure," Squall said. "I think we'll have to head all the way back up and reset the system, maybe come down a different route to get you."

Zell let out a groan. "Well, I guess there's no other way." He looked around the room: empty. "I guess I'll be down here."

"We'll get you out soon!" Selphie said, chirpy voice disguising an undertone of worry. "Worst case scenario, we'll just have to blow the door to smithereens!"

"Yeah, yeah," Zell said. "Get going already!" The sooner they started heading back up, the sooner they'd be back down. He could dimly hear the clatter of their feet as they headed back up the stairs above, leaving him all by his lonesome in the old facility.

Well. He was going to be down here for a while, even if everything went as planned. He ambled down the stairs, looking at the dusky shadows of fish through the windows. Given the ruins of the facility, they were lucky it hadn't flooded. The facility was some kind of giant tube, entended down to the sea floor below, and they were... pretty far down. It was also infested with monsters-- coming up from the ruins below? Zell couldn't imagine how they'd gotten here otherwise.

His sneakers scuffed the metal floor as he walked around the room. A quarter-slice of the tube, with a big, sealed door to the other segments. Zell tried that one; it was locked. But, after a few minutes of bored examination, there _was_ another exit. A ventilation shaft! It wasn't too hard to pry off, and the shaft itself was high-volume enough that he could fit in without much difficulty. The problem was... Zell could maybe bypass all the doors this way, but there were still some pressure-seals here, locking off or granting access to a whole maze of other chambers. Zell climbed up a half-floor before he saw the first other vent he could reach, and he kicked it open and slid through feet-first, sliding out into--

Oh. Well, he did say there were monsters. This section was a monster den. A pair of grendels were perched on a nest of rubble, bodies locked together as they, uh, mated. They both stared at him, eyes gleaming, and the one on top, the male, Zell assumed, peeled back its lips in a snarl. Whoops.

Grendels were big. Four-legged wingless dragons, with a scaly golden hide that shimmered with blue iridescence, stretched taut over bulging, bestial muscles. A set of curving horns jutted out over their shoulders and back. They had incredibly thick, bladelike tails that lashed behind them. Their bodies rippled with muscle, huge claws shearing through rubble as they, uh, disengaged from each other and stomped towards Zell. Zell caught a flash of pale blue shaft, squelching out with a spatter of slime.

Interrupting a pair of monsters while they were mating was the easiest way to get them incredibly aggressive. Zell looked at the vent behind him and the monsters coming closer; there wasn't really enough time to scramble all the way back through, and getting stuck halfway seemed like it'd be uniquely bad. Also-- wow, Grendels had big dicks. The closer grendel's dick jutted out, solidly two or three feet long if it was an inch, flesh pale blue and practically glowing in the low light, slick and shiny with juices. And then, as the grendels shifted and the second one moved up abreast of the other, uh-- they both had dicks. There weren't any eggs or anything in their nest. Gay monsters, sure.

Their bulky tails spread their haunches, giving them a taut, curving swell of muscle between the junction of their hips, and that muscular swell was cleaved in two, bunching out around a heavy, ridged slit that, for both grendels, was stretched into a broad oval to admit their enormous, spiring cocks. They were like spikes, jutting out from their crotches, with a slight upward curve. Their shape was something between a seashell and a spiral drill: there was a twisting ridge spiraling up their lengths, coated in nubby bumps, and the flesh between the ridge was drawn out into fleshy curves.

Steam billowed from their dragonic snouts as they snuffled closer, snarling, and Zell raised his fists, ready to fight. Kind of unfortunate for the monsters for him to have interrupted them, but, well, he wasn't gonna let himself be food. Except-- the closer grendel snarled and sat back on its haunches, cock an incredibly distracting spike jutting up all across its underbelly. The other crawled over the other's back, cock leaving glossy smears along the other grendel's hide, and they both wetly snuffled, scenting the air.

It was embarrassing, but Zell wasn't gonna lie: there was definitely some kind of bodily response happening in him from seeing some giant monster dicks. From seeing, uh, some gay monsters fucking. Both of them were still hard, monstrous dicks slick and drooling. Fresh pre still bubbled from both cocks, spilling down their twisting lengths in a slimy stream. He could tell which one had been topping: its dick was coated in sloppy froth, bubbling ooze splattered back across its haunches. The room reeked of sex, smell salty even over the everpresent smell of seawater, and as the monsters got closer the scent only increased, until it was a sharp, acrid reek that burned through Zell's nose on every inhale. Zell swallowed thickly. His cock shuddered in his shorts, skewing down his thigh as he got hard. The grendels were only a few feet in front of him, cocks on display, pre drizzling down their shafts in slimy streams.

"Uh," Zell said. "Hey?"

The seated grendel, the one who'd been on top, hissed at him, dark blue tongue buzzing in its mouth. The other one, crawling along the other one's side, suddenly leapt forward, body slamming into Zell as it knocked him back against the wall, its cock slopping up his chest and immediately soaking his tee-shirt to his skin. It scented him, breath puffing across his neck, and then it twisted down, one huge paw pressing against his trapped dick.

Everywhere the pre smeared across his skin burned. Not heat, just-- intensity. Zell could acutely feel the wet drag of his sodden shirt across his chest, the thin streamers of pre soaking all the way through and starting to drizzle in hot whorls down his stomach.

"Really?!" Zell's voice cracked. "Y-You guys in rut, or something?" The grendel butted its head -- huge, scaly, finned, with giant terrifying fangs -- against his chest, letting out a deep rumble somewhere close to a purr. Zell's dick throbbed in his shorts. The monster's pre was soaking into the waist of his shorts, slowly outlining a burning circuit of flesh around his hips.

"You, uh--" he said, voice sliding up into a shrill squeak when the monster lowered its head, nearly goring Zell across the chest with its horns, and panted across his crotch, dark tongue spilling from its mouth and coiling up his thigh, inside his shorts, to wetly slap against his hard cock. "Oh fuck," he whined, not sure if he should be terrified or turned on. His hands, pressed against the grendel's shoulders, slid down it sweaty scales fractionally, and his knuckles bumped against something hot and soft and slimy. His fingertips burned as they slid over the grendel's cocktip, lodged up against its monstrously-muscular chest. The shallow furrows of his fingertips burst with sensation, drag and slide, as he curled his fingers around its gushing cocktip, feeling across its smooth flesh. Heat soaked into him, pleasure flooding through him from the pressure and slide of the grendel's body against him, its tongue curled around his cocktip, his hand shakily slurping over its cock.

Then... "Fuck it," he slurred, using his other hand to unzip his pants. This was the weirdest situation he'd been in in his entire life, but if the gay grendels wanted to fuck around with him, uh, that was, um...

The grendel bowled him backwards, knocking him to the floor as it straddled him. Its own monstrous cock slid across his stomach, drooling slimy pre across his shirt, and Zell reached down and hauled the hem over his head, streching his tshirt across his back. He kicked his way out of his shorts, leaving him in sneakers and underwear. The grendels bracketed him, one cock slopping across his stomach as the other moved behind him, its cock leaking down into his hair. Zell went crosseyed trying to focus on it.

The grendel humped its cock along his stomach, shaft pumping between his thighs. There was a single abrupt thrust as it jerked back and plowed forward, shoving Zell's legs up and slotting its cocktip between his thighs. Its froth-drenched cocktip gushed pre against Zell's ass, slurping and furling as it fucked the mess along his asscrack, smearing it against his tight asshole. Zell let out a yelp, mouth suddenly wet with sour, salty pre as the motion shoved his face against the monster's slime-drenched cock. He panted, huffing in more of the grendel's spicy rut-scent as their pre lathered across his skin, soaking into him until all he could think about was getting more. He hooked his legs around the one grendel's broad haunches, letting it rut its shaft against his ass, and curled his hands around the other's cock, stroking the base of its cock as he lapped across its enormous shaft, gulping down slimy mouthfuls of its salty pre.

Zell looked up, along the muscular ridges of the grendel's underbelly, to see their heads pressed against each other, muzzles open as they messily kissed above him, tongues intertwined. Hot globs of drool spilled down across his bare stomach, drizzling down in slimy cords. The grendels crooned and groaned into each others' mouths, eagerly humping their cocks across Zell's body between them. Syrupy pre burbled down across his face, pouring tangy and rich across his tongue, and Zell groaned, bubbles burbling up from his slime-coating lips and streaking down the grendel's pulsing shaft. He swallowed the thick mess in heavy gulps, feeling it clot in his throat, sticking there in gummy lumps.

His skin burned, sweat trickling down his sides, and his cock throbbed, harder than it'd ever been before. The grendel's cocktip against his ass dragged upwards, smooth side of its shaft sliding against his asshole, rolling back and forth as it rocked against him. Zell felt himself open up, each stroke coaxing the tight bud of his asshole to relax, to spread and open. Nubby bumps dragged along his asshole, teasing it open wider and wider with each thrust, until with a _thump_ its cockhead caught against his slick asslips, nestled against his slack, open hole for a half-second, and then slammed into him. Zell groaned, mouth opening wide, eyes bulging, as the grendel used the full power of its two-ton body to slam into him, spiking him down onto its monstrous length. The other grendel, feeling Zell's open mouth along his shaft, jerked back and slammed forward too, spearing his cock through Zell's lips and down his throat.

Zell's moans turned into wet gurgles, bubbly froth squelching it way up his throat and spilling out across his upturned face. The two grendels speared him deep, throat and ass spasming, clenching, around their huge cocks. They slid into his pre-lubed body with twin squelches, froth burbling out of him.

The heady, intoxicating feel of their pre flooded into him. Zell felt loose, limber, like he was after an exercise: body hot and sweating, muscles relaxed. Yielding open easy to take the brutal, animal thrusts. They used his body, jerking back and pounding forward, setting up a punishing rhythm that left Zell jolting beneath them. The grendels panted and huffed, muzzles locked together in a messy kiss. Cords of slime spilled down over Zell's debauched body, hips lurching forward as they mated him in hard thrusts, spearing his body deeper and deeper with their monstrous lengths, and Zell's body opened itself up, Zell dazed and drunk.

His throat warped, jolting wider when the grendel sunk deep. His abs bloated, mounding up into a stubby spike. His bulging abs dug against his hard cock, and just that stimulation, flesh tapping against his cockhead, had Zell cumming with a groan, body convulsing as the grendels fucked the load out of him, shafts pounding against his gaped holes in slimy, slurping squelches.

They'd been mid-fuck. The one that'd been on top, the one fucking his face, came first. Its whole cock shuddered, shaft twisting inside his throat as it sprayed its load straight into his stomach, and Zell just groaned, throat buzzing against its pumping cock, jaw split open wide. Ooze squelched up around its shaft, erupting from Zell's nose and mouth as bubbles of grimy froth, and the grendel crooned and howled, sloppily kissing its mate as it deeply bred Zell's throat. The other grendel wasn't far behind: its cock jabbed deep into Zell's guts, nubs raking along his inner walls, and with a roar it jerked forward, entire shaft rippling as it erupted deep inside him, pumping over and over. Each squirt sent heat billowing inside him, gurgling through his pre-flooded passages until its load erupted from his ass, splattering out across the grendel's hide in slobbery bursts. Zell's bloated gut swelled larger, both cocks spraying inside him, pumping gush after gush of slimy, gummy monster cum into Zell's dazed body. His cock, pinned against the straining curve of his belly, came again, squirting sharp lines of cum up to splatter against the underside of the grendel's muzzles, smearing together with the frothy drool hanging down and splattering back down against Zell's disheveled body in a grimy slurry.

The grendels were in rut. They'd been fucking for who knew how long. Just one use of the body between them wouldn't be enough. They hadn't even finishing cumming, still bloating Zell further, before they started humping again, using the gallons of cum-lube they'd dumped into him to sink their gargantuan cocks deeper. Their nubby, spiraled cocks tugged and twisted his internal passages, fucking open his throat, rearranging his guts, to make his body the ideal sex toy for a pair of grendels. Zell just gurgled, cock continually hard, constantly drooling cum, as the grendels thrust deeper, deeper, until with a wrenching pang he felt their cocktips slide against each other within him: cocktip shoved past his stomach, the other pinned up behind his lungs, catching and dragging against each other with only the thin, twisted flesh of his body between them. Another thrust, stabbing deeper, and-- the grendel in his ass bottomed out, bulging vent slopping between his asscheeks, kissing his wrecked asshole with a deep _squelch_. The one in his throat wasn't far behind, fucking his throat wider, wider, until it admitted the full bulk of the base of its cock and it could slam all the way in, vent smashing across Zell's jaw with the force of a punch.

Zell hung there between them, utterly spired on their cocks, body a misshapen lump of stretched flesh as they gushed spurt after spurt of reeking monster cum into him. And then -- Zell gurgling, arms and legs hanging beneath him boneless -- the grendels started thrusting again, working towards their next orgasm.