Bubble Butts and Bubbles

Deep in a forest of the Great Valley, two Longnecks (or, as we would call them, apatosaurs) walked together, one following the other. The one in the lead, Rhett, had a greenish-brown body and an air of confidence, while the other, Littlefoot, was brown with a tan chest and belly, and seemed rather nervous. Aside from their species and gender, two things they had in common were plainly obvious: One, their complete lack of clothing, with both dinosaurs' cock and balls swaying back and forth with each step. The other, their build. The two were rather overweight, with large bellies and butts that would jiggle about as they walked.
It had been several minutes since either of them had spoken, one simply wordlessly following the other. Eventually, Littlefoot broke that silence.
"I still can't believe you talked me into this..."
"I still can't believe how easy it was!", Rhett replied. "Just had to appeal to your sense of adventure, and off you went!"
Littlefoot thought back to how he'd been convinced to take this strange hike...
________________________________________________________________________
Time and time again, Littlefoot had seen Rhett walking naked into and out of the same forest. Seeing him walking into it once again, Littlefoot just had to ask about it.
"Why do you like that forest so much, Rhett?"
"There's a cool place in there that I like to relax at. I don't think anyone else knows about it."
"Woah, really? Can I come with you?"
"Hmm... Yeah, but... On one condition."
"What's that?"
"The whole way there and back, you gotta be naked."
"Wh... I-I'm not gonna do that!"
"Eh, suit yourself. Guess you'll never see my super-cool hangout spot, then.", Rhett finished, then continued walking. Though, before long...
"W-wait up!"
Rhett stopped and looked back. Littlefoot was rushing toward him while disrobing, leaving his clothes in a trail behind him. Rhett grinned.
"There you go! Just follow me, I've got the route memorized."
________________________________________________________________________
"Oof!" Littlefoot was brought back to the present as he tripped on a root, his fat belly somewhat softening the fall. "Told you to watch out for that, moron.", Rhett said, shaking his head as he helped Littlefoot back up, who was currently covering their crotch.
"Did we really have to be naked for this, Rhett?"
"No, but doesn't it feel great? The wind blowing across your ass, your dick flopping about?"
"It feels embarrassing! What if someone sees us?", Littlefoot worried, quickly looking about to be sure that wasn't already the case.
"No way that'll happen. I told you, no one else knows this path."
They continued in silence once again, with Littlefoot's gaze eventually falling upon Rhett's butt, watching it jiggle and shake back and forth. Man, he's got a nice ass... I wonder if he likes mine, too?
"You can stop staring at my ass, we're here."
Littlefoot gasped, quickly looking up to see if- Yeah, no, that wasn't a joke, Rhett was looking right at him. "S-sorry, I... Oh!" They'd arrived at a clearing, with a hot spring! "Sweet, I've always wanted to see one of these!" Littlefoot exclaimed as he happily jogged towards it, belly bouncing up and down. He looked back at Rhett, who, for some reason, was going in a completely different direction.
"Wait, where are you going?"
"I've got something better in mind than that."
Littlefoot looked ahead of where Rhett was going, and saw... A tar pit? He laughed a bit.
"What, you mean that tar pit?", he said, knowing full well that there was no way-
"Yep!"
"W-wait, seriously? You know how dangerous those are!"
"Relax, you big baby, I've got a safe area in it marked with sticks."
Littlefoot looked around the tar pit, and sure enough, there was a half-circle of sticks extending from the side facing the hot spring.
"S-still, you, you shouldn't go in there!"
"Whatever, scaredy egg. Guess I've got the pit to myself, then."
Rhett stepped into the tar, which turned out to only reach his knees. It really was safe, but still, Littlefoot just couldn't bring himself to get in there, instead turning to go back to the spring.
________________________________________________________________________
Rhett watched Littlefoot walk away, pause, and slowly climb into the hot spring, likely having seen how strangely deep it was. Rhett guessed that, if he were to stand on the bottom of it, his head would probably be about a fifth of the way up. He would also be in major trouble, since he was too heavy to swim. Still, there was something about water that sort of called to him, and he loved to fantasize about being trapped under it for various reasons. Rhett sat down in the tar with a splat, and began imagining some scenarios. Maybe he could be walking along the bottom of a river? ...Nah, that was something he could actually get away with if he did it for real, he wanted something perilous... What about falling in a lake?
Just at the thought of that, Rhett could already feel his dick beginning to harden. Oh, yeah, that was definitely the one. He closed his eyes and started to masturbate as he fleshed out the scene in his head. He'd flop into the water with a resounding splash, then quickly right himself and attempt to swim up, but with his awkward and sloppy strokes doing nothing more than barely slowing the doomed dino's descent. Soon enough, he'd land on the bottom, frantically looking around for a way to climb out, but finding none as he quickly grew hard.
Back in reality, Rhett was rather quickly approaching an orgasm. He lowered his head a bit, bringing his mouth below the tar, and somewhat copied what was happening in his fantasy by speaking into it, rather quietly so Littlefoot wouldn't have a chance of hearing it. "Soblmeoblne hblep...", he bubbled out. "Ibl cabln't swblim..."
Now at the edge of a climax, Rhett slowed down the stroking of his cock and moved the story in his head to its own climax, sucking in a breath through his nostrils and holding it, puffing his cheeks. Now, his fantasy-self had been desperately swim-jogging around the bottom of the lake for several minutes, and was only seconds from giving in to the need to breathe. His face had turned a deep blue, his cheeks inflated to an almost comical degree that threatened to outgrow his own head, both hands gripping his neck. Finally, he'd stiffen up, legs shivering, belly heaving and convulsing as precum spurted from his rock-hard and heavily throbbing cock. He'd whimper once, then twice, and finally give up, tilting his head back and blowing out a huge cloud of bubbles...
The real Rhett moaned loudly, forming tons of bubbles as his cock throbbed hard, sending several shots of cum into the thick tar. It felt like a lot, though it was hard to tell, since it wasn't visible under the tar. He sat up a bit, wiping the tar from his mouth as he caught his breath.
"Everything alright, Rhett?"
He froze up for a moment, then quickly looked behind him. Littlefoot still had his back turned, so he probably hadn't seen what Rhett had been up to.
"Er, yeah, yeah, what's up?"
"Still just sort of concerned about you. Thought I heard something weird, too."
Ah hell, how much did he hear?
"...I think you need to get your head checked."
"Okay, fine, I was just worried about you..."
Rhett turned back to the tar pit, finding that the bubbles he'd blown during his orgasm were still there for some reason. In fact, it almost seemed like they were bigger... He watched them for a moment, and sure enough, they were slowly growing. It was no big deal, this happened sometimes with the tar. Oddly durable bubbles would form, expand for a bit, then pop and splatter all over. Rhett wasn't keen on getting tar splashed on his face, so he just blew at the bubbles to send them away. At least, he tried, but they didn't seem to move. He sighed, and swatted at them with a hand, pushing them away a bit... Before they slid right back into place, for some reason. Ugh, fine, I'll just move. He stood up, took a few steps away, then sat back down. He tried to relax for a few seconds, before something bumped into his head. It was the bubbles again, beginning to turn transparent as they continued to grow, each one now close to the size of his head.
The hell is with these bubbles?
Rhett quickly stood up again and smacked one of the bubbles to try to pop it, but this time it didn't even go anywhere, simply jiggling in place for a moment as it got even bigger, now reaching up to his belly. He nervously stepped back, then felt something brush against his leg. Another bubble! In fact, quickly looking around, Rhett realized he was surrounded by slowly growing tar bubbles!
W-what the fuck is going on!?
He slapped at the bubbles a few more times, still only causing them to wobble about with a sort of bwomp sound. He couldn't stop them, and didn't want to find out what would happen if they overwhelmed him, so he turned to run away, barely getting anywhere before stopping abruptly and feeling pressure all around his lower body. The bubbles were pressing in on him, holding him in place! Though, he had to admit, it felt rather nice having the bubbles rubbing against him with little squeaks, squishing his big butt and even lightly squeezing his dick, as if they somehow knew what it was. Rhett couldn't help but quietly moan, humping at the bubbles... Ffuck, this feels good... No, no! I have to focus! As great as this felt, he needed Littlefoot's help to escape!
"Hrph!"
Through some strange coincidence, before he could even inhale, a bubble shoved itself against his face, stopping him from breathing! He quickly pried it off and tried again to gasp, but once again a bubble covered his face before he could suck in, the other bubbles surrounding him now reaching most of the way up his chest. He pulled it away again, but it just kept happening!
"Hgrmph! Hmm-mrph! HU-mgh!"
Suddenly, Rhett found that he couldn't move his arms any more! The bubbles around him had reached up to his neck, and were pinning his arms in place! With yet another bubble sticking to his face, he still couldn't call for Littlefoot, and just had to hope the bubbles wouldn't end up suffocating him.
Slowly, the bubbles trapping him grew further, now overtaking his head and finally covering his entire body. All Rhett could do was slightly squirm about and make little whines as his lungs started to burn...
"Hrk! Hr-grkh! HMRGMKH!"
Then, he started hearing little popping sounds. He still couldn't move, so the bubbles were still there, but then what was happening? He wished he could turn his head to check, but he couldn't even do that, his eyes rolling back as he started to feel dizzy from the lack of oxygen. The sounds continued for a few seconds, and suddenly-
Schlorp! "HUUUAAA!"
All the bubbles merged together into one giant one, with Rhett heavily panting in the middle. He could move and breathe again, but more importantly, he could yell!
"LITTLEFOOT, HELP!"
From the way his voice echoed, though, it was likely he hadn't been heard, and he couldn't even see if Littlefoot had noticed, the world outside the bubble so heavily distorted it was nearly unrecognizable. Shit, what the hell do I do now? Rhett reeled back a bit, and gave the bubble's membrane a good, solid punch... Which resulted in his fist simply bouncing back, the bubble making a bwooble sound as it jiggled around him. Damn it, I'm not gonna die in here! I'm not gonna let a fucking BUBBLE be the death of me! He got what little distance he could from one side of the bubble, then sprinted towards it and rammed into it with his shoulder! With a resounding BWOOMP, quickly followed by "Gah!", he bounced backwards and landed on his thick rear. That didn't work either, and now his butt hurt a bit. Stupid fuckin' thing, why's it so damn strong?
Rhett sat there a moment as he weighed his options, the bubble's wobbling from his attacks beginning to settle down. There was a fair bit of space in the bubble, if he were to lay down he would cover about two thirds of it. The top of it was a little higher than he could reach, so stretching it vertically wasn't possible. Rhett noticed a blurry, brown mass outside... And a hand suddenly pressed into the bubble's membrane!
"Littlefoot! Oh, thank god you heard me, get me the hell out of here!"
Rhett jumped to his feet as Littlefoot pounded on the bubble.
"That won't work! Find something sharp and pop the damn thing!"
Littlefoot said something too muffled to be understandable, and immediately ran off. It seemed Rhett had been right; sound could only barely pass through the bubble's membrane. Suddenly, he noticed movement below his feet... He remembered. There was a slight downward slope from the tar pit to the hot spring... And when he'd rammed the bubble, he'd pushed it right onto it. Oh shit, SHIT! If the bubble rolled into the spring, he'd have to pray it wouldn't flood, or, god forbid, sink. Rhett wasn't going to take that chance. He ran to the side opposite the spring, and pushed with everything he had! He couldn't tell if it was doing anything, but he had to try.
Bwoong!
Holy hell, what was that!? The view of the outside world wiggled and shook along with the bubble, momentarily knocking Rhett off balance. Glancing around, he barely managed to make out what was presumably Littlefoot. Okay, good, he's back, now we can-
Bwoong!
The bubble shook again, this time sending Rhett back onto his ass. Damn it, what the hell is that? This time, he had a hunch of what it could be. He tracked down the brown blob that was all he could see of Littlefoot, and waited a moment... The blob shifted and slightly expanded, then-
Bwoong!
Yep. Littlefoot was hitting the bubble with something.
"No, you dumbass! Don't it hit, pierce it with something!"
Bwoong!
Even still sitting down, Rhett nearly lost his balance. Scrambling to his feet, he pressed against the side nearest Littlefoot, and yelled as loud as he could!
"STOP HITTING IT!"
This time, a few seconds passed before the brown blob expanded again, and Rhett quickly jumped back.
BWOOOONNG!
"Holy crap!" The bubble's vigorous wobbling was so strong this time it sent Rhett bouncing around inside it for a moment, landing dazed on one side of the bubble and sliding down it, the bubble's membrane squeaking as he did. The banging seemed to have stopped now, and Rhett sat up, watching to make sure Littlefoot wasn't going to hit the bubble again. He'd moved to the side with the tar pit now, and seemed to be trying to grab the bubble. He must have seen at this point that it was sliding toward the hot spring, which was getting disconcertingly close. Littlefoot was clearly having trouble gripping the bubble. You idiot, you can't grab something like this! Quit wasting time and find something pointy already!
Now Littlefoot was moving around the outside of the bubble again, going to the side facing the hot spring... And started pushing on the bubble!
"No, you dumbass! DON'T GET IN FRONT OF IT!"
But even if Littlefoot had heard him, it was already too late. His body was starting to indent into the bubble (which, admittedly, was a bit slower), going farther and farther in, squishing against him to such a degree that Rhett could actually make out his features through the bubble's membrane, chuckling a bit at how ridiculous he looked despite the situation, then suddenly...
Schlorp!
________________________________________________________________________
Littlefoot looked down into the hot spring. Holy crap, that's deep... He had to be careful. He couldn't swim, so if he fell into there, there was a good chance he wouldn't be coming back out. Thankfully, the closest section was much more shallow, and Littlefoot slowly climbed in, recoiling for a moment as the intense heat made his skin tingle a bit, before sitting down with his back to the tar pit. The hot water felt just as good as he expected, and he sighed happily. As nerve-wracking as it had been to come here naked, it was definitely worth it.
Littlefoot thought about why Rhett was so obsessed with that tar pit... It must have been a lot of effort to map out a safe area, but why bother when there was a perfectly fine hot spring right next to it? Maybe he got a sort of rebellious feeling from it, since Littlefoot, and presumably Rhett as well, had always been told to stay well away from tar...
He heard something behind him that sounded like intense bubbling, and was immediately worried about Rhett again.
"Everything alright, Rhett?"
A moment passed, then Littlefoot relaxed as he got a response.
"Er, yeah, yeah, what's up?"
"Still just sort of concerned about you. Thought I heard something weird, too."
"...I think you need to get your head checked."
Ah, yep, he's definitely fine.
"Okay, fine, I was just worried about you..."
That was a bit more rude than usual... Something probably had happened, but Littlefoot decided not to press him about it. They were here to relax, after all, and he found he could finally do that. Rhett clearly knew what he was doing, so there was nothing to worry about. Littlefoot smiled and close his eyes for a while...
There was another strange sound behind him. This time, he didn't bother asking about it, not wanting to get told off by Rhett again. He heard a few more weird noises, then they stopped again. Whatever it was, it had been sorted, and Littlefoot could just relax. 
But, he couldn't. Those noises he'd heard echoed in his mind, and worried him once again. Looking over his shoulder at the tar pit, he... Couldn't see Rhett? Instead, he saw a strangely large tar bubble, so big it had turned transparent, and something was visible inside it, though he couldn't tell what it was. Rhett would probably be mad, but Littlefoot just had to check on him.
"Rhett, you're not in that bubble, are you?
...
"Rhett?"
...
Littlefoot quickly stood up. Something was wrong. As he ran towards the tar pit, the bubble jiggled a bit, then jolted toward him. He cautiously moved closer, trying to make out what was inside the bubble... Wait, that was-
"Rhett!?"
He pressed a hand against the bubble's membrane. Rhett was trapped in there! Littlefoot punched at the bubble for a moment, not seeming to really accomplish anything.
"Hold on, I'm gonna find something to pop it with!"
He turned and ran off, frantically scanning the ground for anything sharp, like a stone, or stick, or, something. The best thing Littlefoot could find, though, was a heavy, not-at-all-sharp stick. Damn it, this'll just have to do! He grabbed it off the ground and ran back to the bubble his friend was in.
"I couldn't find anything sharp, but I think this might work! Get ready!"
With that, Littlefoot gripped the stick with both hands, and swung it at the bubble.
"Hm!" Bwowub!
The impact sent ripples across the bubble, but that was all it did. Maybe if I put some weight into it? Littlefoot stepped back a bit, then forward again as he took another swing.
"Rrah!" Bwowub!
Still no real effect, but he had to keep trying! His friend needed his help!
"Hah!" Bwowub!
Littlefoot was getting tired... When this was over, he really needed to get in shape. Still, he couldn't give up!
"Ghrah!" Bwowub!
Now panting, he had to rest a bit before he could go for another swing, leaning over and using the stick to prop himself up. Looking down at the ground, he noticed something... The bubble was slowly sliding across the ground, towards the hot spring! Rhett pressed against the bubble and said something Littlefoot could barely make out, sort of sounding like "keep hitting it". 
Adrenaline surged through Littlefoot! If the bubble got to the spring, there was no way he'd be able to pop it, and his friend would die! He lifted the stick once again, any trace of exhaustion gone, reeled back, and slammed it against the bubble as hard as he could!
"HRRAAH!" BWOWUBUBU!
...Even after that, that damn bubble was still holding together. Littlefoot's stick, however, wasn't. Realizing it suddenly felt quite a bit lighter, he looked down at it, finding it had snapped in half. How can a bubble be so strong? This is insane! Tossing the broken stick aside, he realized the bubble was only a few feet away from the hot spring! All he could really do now was at least try to stop it, running around behind it and trying to pull on it. He couldn't seem to get a grip on it, though, the bubble's membrane continually slipping out of his hands with little squeaks. Instead, Littlefoot ran to the front, to try to push on it instead. He had to do everything he could to save Rhett, even if it put him in danger himself! The bubble seemed to slow down, beginning to wrap around and smoosh against his body, almost flattening his chubby belly. Littlefoot struggled to breathe as the bubble squished tightly against his face, squeezing him all over, even pressing against his dick and balls, squeaking and stretching noises all he could hear, and then...
Schlorp! "Wah!"
Littlefoot suddenly fell forward, landing flat on his face. He looked around... He'd passed through the bubble's membrane, and Rhett was standing over him.
"Damn it, Littlefoot, what the hell were you thinking?"
"I was trying to save you, obviously!"
Rhett reached down to help Littlefoot up.
"Well, you're in here too, now, so give me a hand with this damn thing."
The two of them pushed against the side of the bubble opposite the hot spring, hoping to slow and eventually stop it, but it didn't seem to be doing anything. Next, they pushed in opposite directions, stretching out the bubble, which simply smooshed back to normal just after. It had nearly reached the spring by now...
Rhett started to lose his composure, desperately pounding on the bubble, "God damn it, WHY WON'T IT POP!?"
"R-Rhett, calm down! Panicking isn't gonna help!"
pln! plnpln!
Littlefoot looked up. It was starting to rain... Then, it finally happened. The bubble suddenly slipped into the hot spring, sending Rhett and Littlefoot off balance for a moment. Lucky for them, it was floating, with about a third of it underwater. Finally ending his assault against the bubble, Rhett decided on another strategy, pushing down on one side of it to try to roll it out of the water. He certainly got the bubble rolling, but it simply continued floating towards the middle of the spring, and sent Littlefoot tumbling about.
"Woah, woah! Holy crap, stop!"
A few more seconds of tumbling, then Rhett gave up, sighing and sitting down.
"It's over, isn't it? We're gonna die in this bubble."
"Don't say that, Rhett. We'll get out of here, I know it."
plnplnplnplnpln! The rain was starting to pick up.
Littlefoot sat down. "Well... A-at least we're not getting w-"
"DON'T even say it, you're gonna jinx it."
He felt something plap on his belly. Water was dripping from the top of the bubble, the rain starting to seep through... In fact, a small pool had formed between them.
"...I...I think I already did..."
"Wh..."
Rhett looked down as well. The water was rising, slowly, but unmistakably, being absorbed through the bubble's membrane. This time, even Littlefoot lost his composure.
"AAH, AAHH!!"
The two fat longnecks scrambled about inside the bubble as it slowly flooded, hitting its sides and wobbling it around, making one last desperate attempt to break out.
"HELP! SOMEONE HELP!", they called out, though in the back of their minds, they knew no one would hear them. The water was up to their knees at this point, with about half the bubble's exterior submerged.
"Gah, Littlefoot, why couldn't you have just used something sharp, instead of beating the crap out of this thing!?"
"What, you think I'm stupid? Of course I tried to find something sharp, but all I found was a stick!"
"Wait, you were hitting it that whole time? Holy crap, I never realized you were that strong!"
Now the water had reached their waists, and the bubble itself was nearly underwater...
"Oh! Rhett, I have an idea! I think the bubble's about to sink, and once it reaches the bottom, we might be able to roll it around and search for something sharp!"
"And how exactly would we see it? Maybe you haven't noticed, but we can't see a damn thing outside of here!"
"We have to try! Even searching blindly is better than giving up!"
Water was now covering their bellies, and the weight of it all finally caused the bubble to slowly sink below the surface. Blubbling sounds could have been heard from outside, though not inside, as air continued leaking, little bubbles floating off the big bubble's membrane. It was an interesting feeling, being able to breathe underwater like this, but they didn't really feel like focusing on that.
The bubble took its sweet time sinking, and by the time it landed on the bottom of the spring, the water inside it was up to the necks of its captives. It wouldn't be long until breathing would get a lot harder, and they needed a plan for when that happened...
"Alright, Littlefoot, listen up. Even breathing is gonna need us to work together, soon. Once standing up isn't enough any more, let me know when you need air and I'll lift you up to breathe, and you do the same for me, okay?"
"Got it!"
"Get ready!"
They both panted heavily, now needing to tilt their heads back and stand on their tippy-toes to keep their faces above the water, and with one last deep breath, filling their lungs to the brim with air...
"Huuuuup!"
They went underwater.
Rhett and Littlefoot glanced at each other for a moment, cheeks puffed to the size of softballs and some tiny bubbles dribbling from their nostrils, and got to work pushing the bubble. Sure enough, it started rolling! Then, they stopped to check underneath them (as every other angle was too distorted to make anything out) for anything that could pop the bubble. They found mud, interesting-looking rocks... But, nothing sharp. So, onward the bubble was rolled.
"Wablit, gobl bablck!", Littlefoot blubbed, rushing to the opposite side.
"Whblat?" Rhett hadn't understood him, and continued pushing the bubble, now slowly sending it in an awkward direction.
"GblO BblACblK!"
"Shblit, soblrry!"
Rhett rushed to Littlefoot's side and helped push, though they didn't end up finding anything in particular.
"Mm?" Rhett questioned.
"Thblougblht Ibl sablw soblmetblhinblg shblarp..."
"Mmm...?" Rhett once again couldn't tell what Littlefoot had said.
"Ibl... Neblverblminbld, jublst keblep publshiblng."
And so, the process continued. Push the bubble a bit, look around underneath, then push it some more. Eventually, more bubbles began to slip free of their lungs, and little grunts were becoming audible.
"Mmblb... Rhblett, Ibl nebled aiblr!" Littlefoot glubbed, then pinched his nostrils shut.
"M-mble toblo, hblang obln!" Rhett had a good idea of what Littlefoot had bubbled to him, this time.
The two dinosaurs had held their breath about a minute and a half, and needed a break. Rhett swim-walked to the middle of the bubble, then cupped his hands in front of him. Littlefoot carefully stepped onto Rhett's hands, holding onto their shoulders for balance and was raised up so his head was in the air pocket.
"Haaahhh! Huff, huff..."
Rhett looked up at him to make sure he was recovering well, inadvertantly getting a good look at Littlefoot's erect dick as well. ...What? What's he horny for?
"Alright, I'm ready! Huuup!" It was fairly faint, needing to cross under the water's surface, but Rhett still heard it, and lowered him down again. Momentarily forgetting about his own need for air, he asked Littlefoot something.
"Whbly arble yoblu hblard?"
"...Wblhat?"
"WHblY ARblE YOblU HblARblD?"
"Mmblp?" Littlefoot still hadn't understood him, and before Rhett could try a third time, a convulsion of his chest reminded him he still hadn't gotten to breathe yet. 
"Hmp!"
"Hblere!" Littlefoot cupped his hands like Rhett had, waiting for him to step on the same way and boosting him up. He was thankful it had worked, he'd never done it before.
"HAAAAHHH! Hah, hah, hah..."
Now, it was Littlefoot's turn to see Rhett's erection. Why is he hard? Is he enjoying this?
"I'm good! Huup!" Littlefoot lowered Rhett back down, then they both happened to ask at once;
"Whbly arble-"
"Soblrry, gblo ahblead?" Rhett bubbled.
"Whbly arble yoblu hblard?"
Rhett blushed, and looked down. Sure enough, he was fully erect for some reason.
"Ibl wabls goblnna asblk yoblu thblat!", and, assuming Littlefoot wouldn't know what he'd said, pointed at his dick.
Littlefoot looked down as well, but didn't take it as well as Rhett had.
"MMH!", he went, quickly covering himself and looking back at Rhett, blushing much more than he was.
"Hblahblah, rebllax! Yoblu've bebln nablked thblis whblole tiblme, anbld onbly NOblW yoblu cablre?"
Littlefoot at least got the gist of what Rhett had said this time.
"Thbl-thblis ibls diblffeblrenblt!"
"Weblll, geblt ovbler iblt qublick, thblis'lbl gblo fablsteblr wiblth boblth oblf ubls."
With that, Rhett went back to pushing the bubble, causing Littlefoot to lose his balance for a moment, yelping out some bubbles. He then headed to join Rhett, only pushing with one hand, the other still covering himself. Rhett saw this, and just shook his head. Ugh... Well, at least we won't be TOO much slower.
They resumed their routine, moving the bubble a bit, checking the ground, moving the bubble, checking the grou-
"Mmh! Rhblett, loblok!"
One of the rocks beneath them had upturned a bit, and was pressing into the bubble! The two longnecks quickly went over to it, forgetting about their depleting breath, Littlefoot also forgetting his embarassment, and Rhett glubbed out;
"Dblo yoblu thblink itbl'll woblrk?"
"Wble hblave tblo trbly!"
"GLP!"
The lungs of the two of them made their displeasure known, forcing their cheeks to the size of grapefruits, blushing heavily from the strain. Again, Rhett cupped his hands, Littlefoot stepped onto them and was raised into the air pocket.
"HAAHHH! Hah, hah!"
Rhett was getting impatient, his lungs demanding to be refilled as his belly started to heave, pushing out little whines.
"Hrk...Mmblb...Mmgh..."
"Ready! Huuuup!"
Finally! Rhett quickly set Littlefoot down, waited for him to cup his hands, then stepped onto-
"Gblah!" Littlefoot raised his hands too early, causing Rhett to fall backwards and shout out some bubbles in surprise!
"Soblrry, Ibl'm noblt goblod ablt thblis yeblt!"
Rhett got up again, cheeks beginning to swell farther and more bubbles leaking from his lips. Once again, he got onto Littlefoot's hands, this time successfully being lifted to the air pocket.
"HUUUAAAHH! Cakh, haaahhh!" He gasped hard, coughing up a bit of water he'd accidentally sucked in. Too close... Can't forget like that again.
"Huff, huff... Okay! Huuup!"
Back down he went. Then, Littlefoot said something Rhett was dreading...
"Dibld iblt seblem smblallbler?"
Rhett had noticed it too. He'd been hoping he was just being paranoid, but Littlefoot bringing it up confirmed it. The air pocket had gotten smaller between their breaks, and eventually, it would likely be gone. Still, not wanting Littlefoot to panic...
"Nblo, iblt dibldn't. Coblme obln, wble hblave tblo trbly thblat roblck."
They both walked back to the rock, and Littlefoot was the first to realize...
"Wablit, hblow dblo wble evblen dblo thblis?"
"...Prbless thble bublbblble doblwn arblounbld iblt, Ibl gubless."
And that was what they did, fidgeting with the bubble's membrane and even somewhat changing the rock's angle in the process, wasting about half a minute with the only result being the rock laying flat again!
"AGblHbl, DAblMN IblT!"
"Itbl's okblay, Rhblett! Wble cabln fiblnd soblmetblhinblg elblse!"
They returned to the routine, pushing the bubble once again, then checking the ground. Push, check, push, check, push, check...
Soon enough, the two longnecks needed to breathe again, and Rhett got back into position-
"Rbl-RHblETT! THblE AIblR!" Littlefoot frantically pointed upward, and Rhett knew exactly what he meant. The air pocket was quite small at this point, and visibly shrinking farther. If they were quick, one of them could breathe, but that would be it.
"Thblerebl's onblly enblougblh tiblme foblr onble oblf ubls tblo brbleatblhe... Yoblu shbloulbld tablke iblt, Liblttlblefoblot."
"Yoblu alblwaybls liblftebld mble fiblrst foblr thble otblherbls, yoblu tablke iblt!"
"Nblo, gblo ahblead. Coblnsiblder iblt abln apbloloblgy foblr mablkinblg yoblu coblme hblere nablked." Rhett held out his cupped hands, and Littlefoot reluctantly stepped onto them, being raised into the quickly shrinking air pocket for the last time.
"Haaahh, hah, huuuup!" That was all he had time for, the last little bubbles of air finally seeping outside their prison. "Arble yoblu sublre yoblu'll bble okblay, Rhblett?"
"Yoblu knblow hblow toblugh Ibl ablm, I'lbll bble fiblne!" Rhett said, lying. Though he himself felt good about giving the last breath to Littlefoot, his lungs sure didn't, cheeks at the size of grapefruits as he started to struggle with holding his breath.
Once again, the bubble-pushing routine began, as Rhett tried his best to hide his increasing need for air. Still, quiet grunts and groans could be heard as his belly contracted slightly, bubbles trickling from his nostrils as he blushed heavily from the strain.
Eventually, Rhett stopped caring about hiding his lack of oxygen, going "Hmp!" and quickly covering his mouth, cheeks inflating farther.
"Rhblett! Hblere, tablke soblme oblf mbly aiblr!"
God, yes! I need it so bad! "Nbl-nblo, keblep iblt!" DAMN IT!
The situation had caused Rhett to become too selfless for his own good, it seemed, waving Littlefoot off and continuing his struggles of keeping his air inside and pushing the bubble. He'd been holding this breath a little more than three minutes by now, and all the pushing and bubbletalking was really doing a number on his lungs, his grunts and groans now turning into little whines, the blush on his slowly expanding cheeks beginning to gain a purple hue.
They pushed the bubble more, Rhett only able to use one hand to do so, holding his mouth shut with the other. Even Littlefoot was clearly in need of air at this point, little "hmpf"s and "Mm"s becoming audible, his belly twitching somewhat.
Just over four minutes since the air had been lost, Rhett started to lose the fight to hold his breath, doubling over and covering his mouth with both hands, volleyball-sized cheeks now quite clearly turning purple, and going "MBLP! HMM!". His dick was getting quite insistent at this point, too, visibly throbbing along with the convulsions of his belly.
"Rhblett!" Littlefoot shouted once again, moving his head closer to Rhett's and pulling his hands away from his mouth. He was going to share his air this time, and he wasn't going to take no for an answer, putting his lips around Rhett's.
Rhett was stunned for a moment. O-oh my god... I-it's really happening... I'm kissing him! He'd never told anyone, but he'd always secretly had a crush on Littlefoot. His bravery, his big, jiggly belly (currently pressing against Rhett's own), and his soft, fat rear... Littlefoot was essentially perfect, and now he and Rhett were kissing!
It took Rhett almost a full second to realize the kiss was to share air between the two of them, gasping deeply from his beloved's lungs and even feeling their chest deflate as he did... It nearly brought him to orgasm right then and there! "Mmh...", he went, starting to forget the situation as he and Littlefoot breathed from and into each other. With their dicks pressed together, and Rhett lost in pleasure, he couldn't resist reaching behind Littlefoot, and grabbing a handful of his buttcheek...
"GABLH! RHBLETT, WHBLAT THBLE HBLELL!?", Littlefoot yelped, inadvertantly breaking the kiss and causing a ton of air to bubble away!
"Sbl-soblrry, Ibl dobln't knblow whblat cablme ovbler mble...", Rhett bubbled, fully knowing what had come over him. Despite the air loss, Rhett's lungs were feeling a lot better (though still rather uncomfortable), his blush returning to being red, and his morale having definitely been improved.
"Dobln't dblo thblat agblain!"
It was time for more bubble-rolling, in their seemingly endless search for anything sharp. Unknown to them, they'd actually gone in circles a good few times, still not having seen the entirety of the hot spring's bottom. Finally, though, after another minute of rolling and checking, they found something they definitely hadn't seen yet: A rather sharp-looking rock!
"Leblt's trbly thblis onble!", glubbed Littlefoot.
"Mm!", Rhett responded.
They swim-walked over to the rock and started messing with it. It was about grapefruit-sized, much like the cheeks of the two dinos, though distinctly pointier and less purple.
"Okblay, itbl's ablt abl goblod anblgle... Albrigblht Rhblett, geblt reblady! Whblen Ibl sably, rablm inblto thblis siblde abls hblard abls yoblu cabln, anbld I'lbll publll obln thble roblck ablt thble sablme tiblme!"
Rhett braced against the bubble's opposite side, "Leblt's dblo thblis!"
Littlefoot made sure his grip on the rock was secure, then...
"NOblW!"
Rhett pushed off the bubble's membrane, using the extra momentum to slam against the opposite side with as much force as he could, with Littlefoot yanking on the rock, and then...
schlup!
Littlefoot flew back a bit, fat belly shaking about from the sudden momentum as he still held the rock, which... Had passed into the bubble.
"OblH, COblME OblN!" He tried to throw the rock at the bubble's membrane, though it quickly slowed to almost a stop, sinking and rolling down the side of the bubble.
"Blbl, HMP!" Going six minutes without a fresh breath was beginning to take a toll on Rhett, who tightly shut his eyes and once again bent over a bit while covering his mouth, cheeks returning to volleyball size.
Littlefoot gently rubbed at Rhett's heaving chest, trying to help him calm down. "Loblok ablt mble, Rhblett. Wble cabln dblo thblis." Rhett didn't seem to think so, opening his eyes just a bit to look at Littlefoot, before shutting them again with another heave of his chest and a loud "Mm-mmph!"
"Mmp!" Even Littlefoot had to cover his mouth, now, cheeks only a little smaller than Rhett's. It likely wouldn't be long until one of them couldn't hold their breath any more...
Both longnecks glanced at each other, then dashed to one side of the bubble. They weren't gonna be making any progress just standing there, after all. They each used only one hand to push, covering their mouths with the other.
Suddenly, the bubble's membrane was being pressed in by something. Something sharp! The sharpest thing yet, in fact! The two dinos nearly gasped, quickly pushing the bubble towards the... large stick stuck in the mud, as it turned out, even pressing themselves against the bubble's membrane and pushing the stick farther and farther in, until...
PANG!
The bubble popped at last!
"Wble dibld iblt!", Littlefoot happily blubbed, the two newly-freed prisoners of the finally-defeated bubble pushing their need for air to the back of their minds, celebrating their victory with an aquatic hug that squished their bellies and big (somewhat blue-tinted) cheeks together.
Rhett was the first to realize there was still an issue... "Noblw whblat?" Even with the bubble out of the picture, they still had to reach the surface, and they couldn't swim! Then, their lungs decided they wouldn't be ignored any longer, and with a "HMRK!", their struggles to hold their breath resumed. They both stepped back to cover their mouths again, and tried to think of what to do. Desperate to breathe, Rhett tried to simply jump for the surface, only getting about two feet off the bottom before sinking back down, his belly and dick jiggling about with his movements. Littlefoot tried jumping as well, and he at least had an extremely basic understanding of swimming, if it could be called that, flailing about with no coordination whatsoever and only barely going higher than Rhett had.
Bubbletalking was difficult at this point, but Littlefoot forced out some words, "Wbl-wble hblave tblo-MMH!-fiblnd abl wably tblo cbl-clblimb oublt!"
Rhett tried his best to respond, pointing at one side of the hot spring that was their new, much larger prison, and bubbling "I'lbll chbl-chbleck ovbler-HMRK!-thbl-thblere!"
Littlefoot nodded, swim-walking to the opposite side. Rhett couldn't help but stare at Littlefoot's butt for a moment, watching it jiggle about as he walked away... G-god damn it Littlefoot, stop shaking your ass around like that! ...Y-you fucking cutie, I wanna fuck you but- FUCK WE NEED AIR! Holding his breath so long was starting to mess with his senses, and also make him incredibly horny, his dick now aching and leaking pre, leaving a subtle trail behind him as he walked to the muddy wall opposite Littlefoot.
________________________________________________________________________
Rhett's belly shook and convulsed, his body starting to shiver from his dire need for air. Seven minutes, now, he'd gone since he breathed the relatively fresh air from the now-popped bubble's air pocket, so long ago. His blue cheeks were now the size of basketballs as he walked along next to the wall, looking for any possible way up as he held his mouth shut with both hands, whining and whimpering as his burning lungs threatened to give up. A torturously long ten seconds passed, and Rhett saw a section of the wall that looked promising, carefully moving a hand from his mouth and doing his best to start climbing. He got about three feet up, then one of the rocks he'd grabbed slipped loose! "MMM! FUBLCK!", he went, and landed on his butt. He stayed like that a moment, holding both hands against his mouth again, rocking back and forth slightly as he did everything he could to keep his used-up air inside. Slowly, carefully standing back up, Rhett continued his search, glancing over at Littlefoot just in time to see him go "NblO!", and fall from a potential escape route as well.
Another twenty agonizing seconds later, and Rhett froze up, going "Hmp, mmph, mm", belly jolting about as his body shook in place. Then...
"slrk"
Rhett's eyes went wide, the burning in his abused lungs suddenly massively increasing... He'd inhaled water through his nostrils. Maybe about a shot glass's worth, but even a drop would have been far too much. Rhett doubled over, moving one of his hands to his neck instead of his mouth, his cheeks reaching a ridiculous size. If he were still coherent, he would realize that they now rivalled the size he'd imagined them at in his fantasy so long ago... But that wasn't important now. Rhett focused on not coughing; if he did, it would certainly get the water out of his lungs, but he would also lose all his air! Even what little oxygen was left in that was worth needing to endure wet lungs.
With a strength of will Rhett didn't realize he had, he struggled onward. F-for Littlefoot... I HAVE TO DO THIS! Each step he took, he could feel the water sloshing in his lungs, but still he focused, continuing to check the muddy wall next to him for any hope of escape. Despite everything, his dick was still rock hard, spurting pre with every other throb as he could feel an orgasm approaching.
Eight minutes. Rhett's extreme willpower started to falter, and he stopped again. He shook uncontrollably, water splashing about in his lungs, dick at the edge of an orgasm...
He couldn't take it any more.
"PLBALABLLABA-HUUUAAAGLK!!!"
________________________________________________________________________
Littlefoot examined the wall... No, this bit won't work. He walked sideways, looking up and down for any spot that had potential as he continued covering his mouth-
"MGH!" He stubbed his toe on a rock, barely managing to prevent any air loss. Wincing from the pain, he decided to just walk forward instead, so that wouldn't happen again. After a few seconds, he found a spot on the wall that seemed alright, doing his best to hold his breath despite his burning lungs as he started to slowly climb up, needing both hands to do so.
"MMM! FUBLCK!" Littlefoot looked behind him, seeing Rhett on his ass, a rock landing next to him, and a small divot above him. Clearly he'd tried climbing, and one of the rocks was loose... Littlefoot could only hope that wouldn't be the case for him, getting a few more feet-
He slipped! "HM!" He tried his best to recover, but it was too late. "NblO!" Littlefoot fully lost his grip, quickly sinking back to the bottom. Managing to land on his feet, he tried again, cheeks having grown to basketball size. He was especially careful this time, going a bit slower and managing to pass the point where he'd fallen before... Then, just like what Littlefoot assumed had happened to Rhett, a rock broke loose, and back down he went. With that, this path was no longer viable, and Littlefoot moved on to find another one, covering his mouth once again as his dick started to ache for release... He so badly wanted to masturbate, even despite the situation, but didn't feel confident enough to only cover his mouth with one hand. Nevertheless, he stopped for a moment, bucking his hips forward a few times as his eyes rolled back...
"MM!" What if Rhett was looking!? Littlefoot glanced at him... Rhett was clearly preoccupied with his own issues, hunched over with one hand over his mouth and the other gripping his neck as he slowly walked next to the wall.
Relieved that his momentarily overwhelming lust hadn't been discovered, Littlefoot continued his search for a way up, his cheeks a deep blue as his lungs approached their limit. Then, a few seconds later...
"PLBALABLLABA-HUUUAAAGLK!!!"
Littlefoot heard a weird sound from Rhett's direction, turning to see what it was... Rhett was grabbing his neck with both hands, his mouth was wide open, and no bubbles were coming out! Littlefoot would have gasped if he hadn't been covering his mouth. RHETT'S DROWNING! "RHBLETT!" Forgetting his own problems for the moment, he swim-ran over to his drowning friend, who had... A few... Strands of cum, spurting from his dick? He was having an orgasm from drowning!? 
Rhett had fallen to his knees by the time Littlefoot reached him. "Rhblett, tablke mbly aiblr!" Even though the air in Littlefoot's lungs was almost worthless at this point, anything would be better for him to breathe than water! Rhett shook his head, and surprisingly, managed to talk through his desperate gurgling chokes. "Ghit w-hicp!-won't HUUelp no-HAK!-now!" Littlefoot wasn't having it, moving to give Rhett another air-kiss. "N-no-GKH! Do-HUUUon't!", Rhett gurgled, trying to push Littlefoot back. Getting just a puff of air like that wouldn't help, and if he coughed during the kiss, he'd send water down Littlefoot's throat! But, with his strength fading, he couldn't manage to fight off Littlefoot, and their lips locked together.
Rhett held his "breath" as best as he could, feeling Littlefoot trying to push air into him, meaning his lungs were wide open...
"Hnrk...ghk...grgl..." Quiet, internal chokes could be heard from Rhett, his body fighting to reject the water in his lungs... Eventually, it won.
"HURKH!" "GARGLUG!" Rhett's fear was realized. He finally coughed, sending a load of water rushing into Littlefoot's lungs! They immediately hacked it back out, but the damage had been done, and Littlefoot instinctively gasped, "G-GHUUUUAALK!"
Now, at last, both longnecks were drowning together. Littlefoot at least was having a slightly better time of it for now, shooting a load of cum into the water just like Rhett had, going "Glgralarlagl!" in pleasure as he gargled out his last bubbles.
"Kh-keep llookHIIng! W-hic!-we have t-GHAK!" Rhett couldn't finish, doubling over in an intense coughing fit! He'd gotten his point across, though, and Littlefoot awkwardly swim-jogged back to his section of wall, barely able to focus on anything but his flooding lungs as his gurgles echoed about the hot spring's bottom.
Rhett finally managed to calm down a bit, struggling to his feet as his hacking and choking turned to coughs and hiccups, frantically searching for any potential way up regardless of how likely it would be to work. His vision so blurry and mind so dizzy, he actually missed a section he would have tried, instead going for another one nearby he wouldn't have bothered with!
"Ghuuh, ULK! Hicp!"
Rhett could only barely focus enough to try to climb, and even then, he barely got anywhere before another coughing fit started. He clutched at his neck with one hand as he went "CAKH, HAK! HUUAA-GHK!", the blue of his deflated cheeks beginning to spread over his face. Not really thinking, he moved his other hand to his neck as well, losing his grip on the wall and falling backwards.
Littlefoot wasn't doing much better, repeatedly trying to climb the section of wall he'd tried before. Weighed down by his waterlogged lungs, he was having a much harder time climbing than he'd had before, his slowly weakening muscles struggling to raise him up the wall as he choked on the water he'd been relaxing in earlier, "KHK! HLKH!" Another rock came loose, and he fell once again.
Climbing out wasn't going to work, even their drowning-addled brains could understand that. But, what else could be done? Littlefoot decided that, even with his pathetic skill in swimming, his best option would be to just jump and swim up. With his body now full of water, though, he didn't even get as high as he did originally... Still, he kept trying, desperately hopping up and down and flailing his arms around, coughing and gasping fitfully as his belly and dick jiggled about. Rhett happened to see Littlefoot's struggles, and his waterlogged mind decided it was a perfectly reasonable option. He too started repeatedly jumping for the surface well out of his reach, growing increasingly dizzy and lightheaded as his pained chokes slowly transitioned into heavy panting, his dwindling energy causing his body to begin giving up its struggles.
The hops of the two waterlogged dinos began to achieve even less height, Littlefoot now smoothly breathing water like Rhett was. Rhett had been drowning for about a minute and a half at this point, with Littlefoot not that far behind at around a minute and ten seconds... They needed to figure something out, and soon.
It occurred to Rhett... When he and Littlefoot had done that first kiss earlier, they were able to breathe air like that. Who was to say it wouldn't work again?
"L...L-Littl-hic-fffoot...huuu...kkisss...ffr airnm..." It was rather surreal how clear his words now were, with no bubbles or choking getting in the way.
Littlefoot weakly nodded, and the two sort of stumbled toward each other, bumping their heads together a few times before managing to get their lips placed properly. They began breathing from eachother's lungs, obviously not accomplishing anything as there hadn't been a single bubble in either dino for quite a while at this point. Still, they continued, thinking it might just take a while for them to recover.
Rhett was still coherent enough to be loving this, groping at Littlefoot's ass again. They jolted for a moment, but didn't pull away this time, instead moaning a bit and using a hand to smoosh Rhett's belly. It was starting to occur to them at this point, that they weren't actually getting air from their kiss... But, they didn't care. If this was how they died, well... There were certainly worse ways.
Both drowned longnecks had become fully erect again, dicks throbbing with their struggling heartbeat, and Rhett decided to go for something he'd always wanted to do with Littlefoot. Reluctantly releasing their fat butt, Rhett reached under Littlefoot's belly and gently grasped his dick. Littlefoot's eyes shot open as he went "Hm!", seeing Rhett's weak smile... F-fuck it...It doesn't matter any more... Littlefoot moved his hand from Rhett's belly to their dick, softly stroking it. Rhett was the one to be surprised this time, eyes opening with a weak "hk!", looking into Littlefoot's own lidded eyes, and began stroking their dick as well.
It felt like it went on for hours, the two dinos kissing and breathing into each other as each of them masturbated the other. In actuality, it had been about thirty seconds, and Littlefoot noticed a glistening orb behind Rhett, rising to the surface. It had been so long, with his brain so dulled by the oxygen deprivation, that he almost didn't recognize it...
Littlefoot pulled away from the kiss, pointing behind Rhett at the... Bubble, yes, that was the word, and did his best to speak, going "Rrhett...Bu...bl!"
Rhett's eyes widened somewhat, as he turned his head to see that, indeed, there was a single bubble floating away! It was long out of reach at this point, but it had to have come from somewhere in the ground!
"Fffind...guh...wwherehit-hic-khame...ffrmm...", Rhett managed to force out.
They'd been drowned into stupidity, but even now they knew their bodies needed to breathe air, not water. So, they stumbled near to where the bubble had likely floated out, and began to search, weakly brushing mud aside and moving rocks out of the way as they crawled about on the bottom, as if the potential air source were a buried treasure.
After fourty seconds of this without a single bubble having been found, with Rhett's mind eventually being so dulled he'd started repeatedly checking the same spot, they heard an oddly familiar sound...
blblblblb...
Rhett and Littlefoot blearily looked towards it, barely making out in their blurred vision... A giant bubble, just like the one that had sent them down here! Clearly, they'd found the air source they'd been looking for. A burst of adrenaline shot through both of them as they struggled to their feet, managing to walk over to the new bubble... Though, neither had the slightest idea how they'd get into it.
Littlefoot tried to grab onto the bubble, planning on pulling open a hole to slip through, but, just like when he'd tried to grab the first one so long ago, it was too slippery and slimy for him to get a grip on it. Rhett just patted at the bubble a few times, too weak at this point to give it proper smacks.
Then, Littlefoot had an idea. "P-pushhh...ghuh...tooghethhhuh..." If they pushed the bubble into a wall, it would stay in place, and they could keep pushing to then get inside! So, slowly, they began rolling the bubble toward the nearest wall. Nearly three minutes, now, it had been since the last bubble between Rhett and Littlefoot had been gurgled out, leaving them so weak they had to work together to even move this big bubble at all.
A good twenty seconds later, the bubble squished up against a wall of the hot spring, and the two longnecks continued pushing at it, farther deforming it. The bubble's membrane was pressing against them, feeling quite good against their dicks... Rhett was the first to give into the sensation, not really pushing as much as he rubbed his dick on the bubble, then started humping it with a pleasured gurgle. Littlefoot soon joined him, his focus shifting from getting air to getting pleasure as he too thrusted against the bubble. Rhythmic little squeaks could be heard as they fucked the bubble, eyes rolling back and dopey smiles on their deep blue faces.
About thirty seconds passed, the squeaking of the bubble's membrane against the dicks of the drowned dinos getting somewhat quieter, then a bit faster and louder as they approached an orgasm. And, with both of them heavily thrusting at once...
PANG! BLAULPUPLBLBL!
They accidentally popped the bubble, the air inside it quickly floating away. At the same time, Rhett and Littlefoot's dicks throbbed hard, each spurting several strands of cum into the spring for a second time. The sudden lack of resistance as the bubble popped caused Rhett to fall to his hands and knees, though Littlefoot managed to keep his footing, both panting heavily as they came down from their orgasms.
Now what would they do? They'd squandered a potential source of the air they so desperately needed by fucking and popping its container instead of entering it to breathe, and with it having been four minutes since any air was in either longneck's lungs, they were beginning to feel exhausted and sleepy...
"So that's how it's gonna be, huh?"
Suddenly hearing a perfectly clear voice, Rhett and Littlefoot looked at each other a moment... No, it couldn't have been either of them, so then, who... Oh! Another giant tar bubble was sinking down! Littlefoot did his best to help Rhett to his feet, struggling to stay standing himself at this point, and only barely able to walk, slowly approaching the new bubble as it landed on the bottom.
"The nerve of you jackasses! Not only do you refuse my gift, but then you freakin' pop me?"
Th-the bubble's talking to us! At least, that's what they were thinking. In reality, this bubble was as wordless as any other, but with their minds so far gone, they interpreted the sound of the little bubbles streaming from the big one's top as speech.
"Sss...hic...ssorrryy..." Littlefoot glugged to this strange, talking bubble.
"That ain't good enough! Being popped hurts, you know!"
"Jjjuhsst...lle-ghuk-let uss inmm...pleasse..." Rhett managed to gurgle out.
"Nope. It's too late for that, now. Besides, you look good in blue!"
Littlefoot dropped to his knees and begged the bubble to help them, "Pp...leashe...hulp...d-donn't jjusst l-hic-let usssdie..."
"Haha, that's adorable! Keep begging, you stupid little dino, it's fun to watch."
While that was happening, Rhett had picked up a rock, proceeding to weakly hit the bubble with it, "Hurgh!"
"Oh, did a flea just bite me? Wait, no, it's just Rhett, making a pathetic attempt to attack me."
Rhett had had about enough of this bubble's attitude. "Shhut...up!"
"No, I don't think I will. It's a real shame you'll never get at the air inside me, huh? So close!"
Rhett and Littlefoot started trying to grab at the bubble, hands slipping away from it like always.
"Look at all these bubbles slipping out of me! Blub blub blub! Not a single one is gonna get in your lungs."
Littlefoot's body was nearing its limit, his muscles relaxing for a moment as he briefly lost consciousness...
"Aw, someone's getting sleepy... I'm sure you'll feel better after a quick nap!"
He was actually temped to take their advice at this point, so utterly exhausted from his drowning that just dragged on and on...
"L-Little-glp-fffoot...sstayy...awwakhe..."
"As for you, Rhett, I bet you feel real good about dragging your friend here to die!"
"Ssstop-hic-it!" That wasn't true! Rhett didn't know how the bubble knew about that, but he didn't feel good about this, he felt awful!
"Struck a nerve? Sweet. Just think: If you'd just refused to take him, he'd have gone about his day just like normal. But no, not only did you let him come, you led him here! He's gonna die down here, and it's all your fault!"
Now it had gone too far. "FFUCK YOU!", Rhett yelled, grabbing at the bubble once again and actually succeeding this time, then pulled backward as hard as he could-
schlurp!
Rhett forced himself into the bubble! With the bubbling sounds no longer audible to him, he couldn't hear the bubble's taunting any more, either.
Of course, Littlefoot was still outside, and heard the bubble's reaction to Rhett getting inside.
"...Holy shit, he actually did it...H-hey, don't think that means anything! You're still fucked out here!"
The bubble's membrane bulged out, Rhett's open hand becoming barely visible, which Littlefoot did his best to walk towards.
"That's not gonna work, you idiot! There's no way he'll be able to pull you in!"
Littlefoot didn't even respond, grabbing Rhett's hand and being pulled against the bubble.
"No, stop! You can't come in! I WON'T LET YOU-"
schlurp! "Ghurh!"
Now Littlefoot was in the bubble, too. And, with Rhett using so much force to pull him in, both of them immediately fell backward, Littlefoot landing on top of Rhett. They looked in each other's eyes a moment, then checked above them. Sure enough, there was a glistening pocket of air at the top of the bubble! But, they found themselves getting horny once again... Well, they'd lasted 5 minutes breathing water, surely they could handle one more. The two deeply drowned longnecks kissed once again, rubbing their bellies together as their dicks quickly grew hard.
They pulled back from the kiss, and Rhett struggled to sit up as he and Littlefoot both masturbated. Then, Littlefoot started... Sucking Rhett off! "Nmuuugh...", Rhett moaned, laying back and getting a dopey smile again as he simply took in the pleasure that was helping him stay awake.
"Hmrk...gn...mmmh...", gurgled Littlefoot, relaxing as he teetered on the edge of passing out. Rhett reached over and patted their cheek to help wake them up, then said "Llemmmie ssee...thhhatasss...huup!", abruptly taking a deep breath of water and holding it, puffing his cheeks to volleyball size with just water. Littlefoot weakly moved, getting on his hands and knees to show Rhett his big butt. Rhett grabbed Littlefoot's asscheeks, exhaling his lungful of water against them as he smooshed them about.
"Ghuhh...Llove-hic-it...", Rhett said, slowly standing up. Then, after making sure he was positioned properly, he shoved his dick into Littlefoot's ass! "Nnnghuup!", went Littlefoot, the sudden pleasure rousing him from another potential loss of consciousness as he too held a breath of water and puffed up his cheeks.
This continued for a while, Littlefoot eventually exhaling his held breath as Rhett continued fucking his ass, he too now having a bit of trouble staying awake. Weak gurgles filled the bubble as the pleasure of the two of them started to ramp up, Rhett's thrusts getting a bit more force to them, until finally...
"Nnghuuuhuugh!"
The two dinos both came once again, and while barely any cum was sent out of them, it still felt just as good as the other times. With their arousal dealt with, and it having been 6 minutes that their lungs were flooded, it was finally time for some air.
Rhett and Littlefoot struggled to their feet, but Rhett needed a moment to remember how this worked... Ah, right. He cupped his hands in front of him, Littlefoot stepped onto them for... Both of them had lost track of how many times they'd done this by now. Then, Rhett did his best to raise Littlefoot up to the air pocket, which had shrunk so much during their waterlogged sex that Littlefoot couldn't quite get his head high enough to reach it, holding a hand on Rhett's head for balance as he waved the other about in the air pocket.
"Hlk! glg, grkh...gh....." Littlefoot suddenly spasmed a bit and went limp, slowly falling forward and pressing his belly against Rhett's face... Rhett lowered Littlefoot down to figure out what happened, as their body now fell back, mouth hanging open and eyes half closed... Littlefoot had passed out!
"Nnh...wwakheup..." Without Littlefoot's help, there was no way he'd be able to reach the air pocket! Rhett had to wake him up! He patted Littlefoot's cheek, shook him slightly, and even (after some hesitation) gently touched one of his eyes, but nothing seemed to work... Th-there's a...thing, for this...um...d-don't remember...what it's called... He was thinking of CPR, though it didn't occur to him that that doesn't work so well without air. Still, Rhett took a deep breath and kissed Littlefoot again, blowing water into his already flooded lungs and inflating his cheeks with what didn't fit. Then, he moved his head back, Littlefoot's cheeks immediately deflating again, and started repeatedly pressing on their chest. Despite how drowned Rhett was, he happened to do the chest compressions at the proper rhythm, though he was so weak that, even if it was air he'd blown into Littlefoot, it still wouldn't have done anything.
"W-wakhe...up!" Rhett was starting panic. He had no idea how much longer his body could endure drowning, he could pass out at any second! He had to wake Littlefoot up, or they would both-
"GHK! Hkh, urk, gulk...hk..." Rhett seized up for a moment, shivering uncontrollably as he fell on top of Littlefoot. His body finally couldn't take any more, energy depleted at last as he quickly passed out.
The two longnecks had finally fully drowned, nearly lasting 7 minutes with nothing but water in their lungs. As painful as it had been... They'd had a good time together, overall.