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Collapsing against a thick pine tree. That was the last thing Tyrannus remembered before he completely blacked out. The tyrannosaurus had been on a research trip up high in the mountains, and unfortunately, he had gotten separated from his group when a powerful blizzard hit. The dinosaur was not naturally equipped for environments like this, and as he collapsed against that snow-capped tree, Tyrannus expected it to be the last thing he would ever see.

But it wasn't.

The rex eventually opened his eyes once more, greeted not by the inhospitable frozen tundra, but by...logs. A ceiling constructed out of them. The rex tilted his view lower, and saw that he was tucked into some sort of bed. Across from him, a snow-battered window next to a hallway. A hallway that Tyrannus could hear someone walking down...

In his dazed and confused, semi-conscious state, the dinosaur just sort of laid there with his head picked up a little bit as the owner of those footsteps walked into the room. His presumed rescuer was a rather large, tall, blue bird man, currently carrying a tray with a few cups and pots on top of it with his wings. His eyes were closed, and he was humming some kind of tune as he walked right up to Tyrannus, placing the tray on a nightstand next to Tyrannus before finally opening his eyes...and, almost immediately, his face lit up with surprise and relief! "Oh, my goodness! I thought you might never wake up..." the bird said, quickly standing over Tyrannus and waiting for him to speak.

It took a few moments for the dinosaur to regain his ability to talk. He had just woken up, after all, and his body was clearly still in deep recovery mode, judging by all the aching and trembling he was feeling. "W-where on Earth AM I?" the tyrannosaurus managed to warble out, before collapsing back against his warm pillow.

The bird man answered simply. "You're still up in the mountains, but you're in my home for the moment. I found you collapsed against a tree out back, a few hours ago...I've been trying to warm you up ever since. What were you doing all the way out here in the first place, if I may ask?" he questioned, an obvious tinge of worry and curiosity in his voice.

"W-well, It was a bit of a research retreat. I work in a local lab, and we were coming up here to track the weather patterns to see what exactly had been going on up here..."

The bird nodded. "Yes, I suppose it has been quite frigid up here, even more than usual...oh, my apologies! I suppose I should introduce myself as well. My name is Kass. I keep a winter cabin up here, mostly as a retreat, but also to help those who get lost in these blizzards..." he trailed off, before reaching down and putting a wing on the rex's forehead. "Goodness, you are still so cold...hum. I may have to try something a bit experimental if you don't improve soon."

That comment scared Tyrannus a little bit, but the rex was still far too weak and tired to really do anything about it. Kass seemed more than nice enough, and he couldn't exactly just get up and walk away regardless...so, there he lay for the next few hours, drifting in and out of consciousness while Kass checked up on him every now and again. Tyrannus was starting to feel a bit warmer, and Kass seemed to confirm this whenever he came around, but it still seemed like he wasn't improving at a healthy rate. The chills, they were still rippling through his body quite frequently...

The next time Kass came in, Tyrannus noticed something. The bird had disrobed beneath the waist, leaving him completely nude to the world! The sudden change jarred Tyrannus quite a bit, but Kass acted as though absolutely nothing had changed, coming to the rex's bedside and leaving some warm tea there for him to sip on.

But, the bird addressed the situation just a few moments later. "I'm sure you noticed a change when I came into the room. This is part of that, er, experimental treatment I was talking about earlier. It's going to require quite a bit of trust, but just know that I don't plan to hurt you..."

THAT statement raised quite a few red flags, and for a moment, Tyrannus actually did think about just trying to make a break for it! The soul was willing, but the flesh still ached deeply...so, Tyrannus could really only watch as Kass stepped over him, the bird's nude, feathered rear quickly ending up hovering right in front of his face! "U-uh, what on Earth are you doi-"

Tyrannus didn't get the chance to finish his sentence, at least not in an audible manner! Kass put all of his weight down onto the dinosaur's face as he sat down right on top of him, lodging the rex's snout right between his warm, soft rump cheeks! Tyrannus immediately started to struggle, but Kass's entire body was smothering his own, so it was rather difficult for the rex to even move, let alone try to push this big, fat bird off of his body! "Mmh, I do hope this works..." Tyrannus could hear Kass's muffled voice say from above him, the big bird continuing to put weight down onto the dinosaur's face and sliding that nose right between his cheeks...

A few moments later,Tyrannus felt his snout pressing up against something a bit fleshier compared to the soft, downy, yet also somewhat abrasive feathers of the bird's rump. It could only be Kass's tail hole, warm and musky and just a bit slimy as well...fuck, Tyrannus couldn't believe this was happening to him! It was such a strange and obviously shocking turn of events, to the point where the rex still didn't really know what to do...not like he had very many options, though. Kass continued to put weight down on the rex's snout, somehow wedging him even further between his cheeks, to the point where it felt like...it felt like he might even end up slipping inside! That certainly seemed to be what the bird was going for, constantly pressing and relaxing his flesh to try and slip his pucker over the tip of the rex's nose. It was clear that he was having a bit of trouble with this, though the bird was constantly huffing and groaning in ways that made it sound like he was enjoying this quite a bit...and, well, the rex couldn't deny that there was a lot of body heat down here. Or perhaps that was the musk talking!

Kass wasn't just intent on smothering the rex under his rear, though. He had something far more involved planned to warm the dinosaur up! He let out a long, lustful sigh as he felt the dinosaur's snout continuing to poke up against his pucker, a few false alarms coming from back there before he finally felt his tailhole stretch right over Tyrannus's snout with a wet, slimy *shhLRP*! The bird gasped out in pleasure as he felt Tyrannus starting to be taken up into his rectum, Kass's bowels almost immediately latching onto and starting to pull Tyrannus up further inside of him! The sudden change of environment initiated a bit of a struggle in Tyrannus, the rex finding it quite uncomfortable to have this makeshift muzzle placed over his snout...but, soon, his body stopped freaking out long enough for Kass to clench another few inches of his head inside! It was so warm and slimy inside of the bird's rear, Tyrannus's skin tingling as that warmth started to spread throughout his body...in this moment of him feeling so absolutely frigid and tired, the rex honestly welcomed the sensation. He just tried not to think about where exactly this warmth was coming from!

Kass groaned as he reached around and planted a feathered wing on the back of Tyrannus's head, starting to put a bit of pressure on it to try and force Tyrannus inside just a little bit faster. It didn't do much at first, but as the rex continued to feel the squeeze between the cheeks in front of him and the wing behind him...well, his head didn't really have anywhere else to go but further into Kass! So he did just that, another wet *shhhllrrrRRRrrpp* surrounding the dinosaur as a good part of his head was now enveloped by slimy bowel walls. His hearing was muffled and dominated by the sounds of Kass slurping him up, the powerful musk that seemed to be radiating from even deeper in the bird's body...

With his pucker now clenched firmly over the midway point of Tyrannus's head, Kass could really start to relax and let his body do most of the work now. It was starting to feel like he was actually sitting down on the bed, and not just awkwardly squatting over it! He continued clenching his ass every now and again, each one slurping up a few more inches of Tyrannus. Soon, the rex could feel the squeeze starting to travel down his neck, more and more of his body continuing to be immersed and swallowed up by the avian's plump rear...that warmth was starting to make its way further down his body, Tyrannus almost immediately warming up with all this hot, humid flesh creeping its way down his neck. He hated to admit it, but this was actually continuing to feel good, if still a bit tight...

The entire world around Tyrannus lurched as Kass clenched once more, lifting his rear up a bit as the dinosaur's neck and even his shoulders were starting to be pulled up into slimy, musky bird bowels! The avian was pretty strong, but Tyrannus would still prove to be quite the large undertaking, and so he would need something to brace himself against. He continued lifting up until the dinosaur was basically sitting up inside of him, aligning Tyrannus perfectly so that the bird could start sitting back down and feeling his pucker slowly inching its way over the dino's shoulders. "OHhHhHh, goodness...I do hope you are doing well in there..." Kass said, the bird completely failing to hide his pleasure at the situation now! The shaft between his legs had already perked up as soon as he sat down on Tyrannus, but now that his asshole was being spread so wide to accommodate the dinosaur...hrrf, it felt so good! And the thought that he still had so much more of the dinosaur to slurp up...well, it definitely gave Kass a lot to look forward to!

For Tyrannus, though, his shoulders slipping inside meant that it was starting to become even tighter in here! When the bird's flesh had to stretch so wide, it constantly put pressure on the thing spreading it apart...and, of course, that just happened to be Tyrannus! It felt like whatever musky air he could breathe was being squeezed right out of his lungs, making it all the more uncomfortable for the rex as he continued to get squeezed inside of Kass...though, the increased tightness was also making it even warmer and more humid inside of here, which did have its benefits! Tyrannus's arms were now firmly held at his sides, making it much easier for the big bird to continue working his way down and clenching the rex inside of him. The bird continued to put more and more of his weight down on the rex sitting up inside of him, basically using Tyrannus's body as a makeshift dildo and doing quite a good job of packing away the dinosaur! And in only a minute or so, the bird's hungry pucker had a firm grip on Tyrannus's midsection, the slimy ring already creeping its way towards the rex's waistline!

And, goodness, Kass's stomach was really starting to swell and grow now. Every time the bird moved, he could feel the swaying, sloshing weight moving around in his lower guts, knowing that it would just get bigger and bigger as time went on...at least once he was finished, he would have this comfy bed to collapse into while he let Tyrannus warm up inside of him! That was all the bird really intended with all of this; just a very intimate, very powerful way of sharing his body heat with the poor dinosaur...that, and how good it felt to him, of course! That part couldn't be understated, in all honesty...

Tyrannus could feel his body being forced through a bend inside of Kass's bowels with every clench now, a true sign of just how far he was inside of the bird now...and there was still nearly half of him to go! Yes, that pucker was now clamped firmly around his waist, the rex unable to stop himself from squirming as he felt that flesh grinding up against his sensitive, green shaft...this was a part that he was both looking forward to and dreading! He didn't want to admit how nice it felt to have Kass's tight bowels squeezing right around his sensitive shaft, didn't want to be thrusting and humping away inside of the bird's butt...but, well, that was what was happening right now, to be sure! It was certainly a very strange sensation, but one that was so wonderful and arousing that Tyrannus just couldn't control his body anymore. Thankfully for the rex, it didn't take very long for Kass to clench the dinosaur's hips right on inside, making the whole situation with Tyrannus's cock a little less awkward! It was sticking straight out for a while there, but eventually something had to give, and Kass's body was a lot larger. So, now, Tyrannus's throbbing shaft was forced up against his body, only getting harder with every clench the bird made...

From here on out, though, it was pretty easy for Kass. The bird even ended up flopping backwards onto the bed after sucking up a few more inches of the rex, Tyrannus's legs and feet and tail sticking out from between Kass's own legs and not much else! The bird just started to dote and rub on his belly now, feeling Tyrannus squirming under his pelt as the rex wormed his way through the maze of bird guts ahead of him. It would be a long journey for sure, one that Kass would most certainly enjoy. Tyrannus? Well, he would definitely enjoy the warmth of it all, at the very least...

*ssshhLLLRRPp~*

Kass gasped out in pleasure as his sensitive pucker clenched once more, his gut growing even larger with every few inches of Tyrannus that slipped inside! The last of the rex was steadily disappearing between the bird's thick thighs, and he was now being subjected to another bend through the bird's bowels...and, strangely, he was starting to feel a bit tired, almost. Perhaps it was the warmth, or the tightness, or the rhythmic sounds of Kass's body all around him...or some combination of all those factors; but a nice, long nap actually sounded pretty good right now. It really just felt like a tight, snug, incredibly warm and humid sleeping bag...well, besides the last bits of his body that were still sticking out of Kass's ass, that was!

The bird continued to flex and clench his legs and pucker for a few more moments, until he finally felt his stomach lurch as the last of Tyrannus was pulled inside. "Hrrrfff...how are you feeling in there, my friend? Hopefully, you're warming up at the very least..." the bird groaned, the words practically dribbling out of his mouth as he lay back in complete bliss. His shaft was throbbing against the underside of his belly, and it couldn't really not do that with how big his gut was, but Kass wasn't especially interested in pursuing that right now. For the moment, the big bird just wanted to relax and enjoy the feeling of Tyrannus snaking his way through his bowels, soon arriving inside of his warm, soft, comfortable gut, and enjoy the most intimate warming up that he possibly could...

The squelching and sloshing that completely surrounded Tyrannus was all starting to blend together now. It felt difficult for him to tell just how long he had been inside of Kass, how many twists and turns he had been forced through as the bowels continued to feed him deeper inside of his bird friend...oh, well. He was going to be stuck here for a while, so he might as well learn to enjoy himself while he was in here. Gradually, he let the squishy, soft, slimy surroundings usher him into a state of rest, his body embracing the warmth that surrounded him and falling asleep inside of his new friend. That warmth radiated throughout his body, gave life even to the extremities that had been nicked by frostbite...when the rex would awaken inside of Kass's belly, he would feel rejuvenated and whole once more...at least, that's what Kass was hoping for.

The bird himself? He was settling into the somewhat-warm spot Tyrannus had left on his bed, feeling a heavy sleepiness starting to come over himself as well. It would take a lot of energy for his body to truly bring Tyrannus back to health, so it was a good time for him to get some rest. The bird drifted off to sleep quickly, enjoying the feel of such a full, soft, squirming gut...