It was a day almost like any other. I'd managed to luck out and not have any work on this particular day, so I'd decided to head down the beach to relax and get a bit of sunlight, it'd do me good.

Upon arriving at a beach that was practically void of people, I head down into the water, wanting to check out some cool looking rock pools. Submerging myself in the sun heated water I sigh in delight, bathing myself in the almost spa like pool. I look around, watching hermit crabs scurrying around on the sand and fish hiding from me in the rock pool.

Just relaxing with the sea life, I maybe should have been a little more wary about what I was relaxing alongside, but I didn't really care, this was bliss.

I lounge in the nice warm water for quite some time, not really paying attention to the time, until finally I feel something hard and sharp brushing up against my foot. Barely awakened from my dozing I sit up a little to see a brightly coloured hermit crab shell against my foot. Thinking it weird that the shell wasn't a usual motley mix of brown and white, I didn't think much further in my relaxed, sleepy state than that.

Completely forgetting that brightly coloured sea life usually had that colouration as a "Hey, I'm dangerous, don't fuck with me" warning.

As I lazily push the hermit crab away, whatever was actually in the brightly coloured shell struck, stinging my foot with lightning speed before scurrying away quicker than my eyes could track it as anything more than a blur.

Immediately I sat up, feeling a tingling and light burning sensation coursing up my leg and .. paralysing everywhere it went! I couldn't move my leg below the thigh already!

I tried to move, tried to get out of the rock pool, but trying to get moving after being so relaxed while also fighting against the fact my body was slowly shutting down, I decide to use the last of my movement to roll onto my back so I didn't end up face down in the water.

When my arms and legs do stop responding completely, I was practically in the same position as before, relaxed, laying in the pool .. just, unable to leave if I wanted to. There was a faint feeling of panic coursing through me, of course there was. But .. the relaxing position I was in, the nice warm water. It was hard to argue that this wasn't the whole point of the beach trip at all.

While I wasn't able to completely suppress that panic, I was amazed at how much I was able to relax considering the circumstance. Stung by a mysterious sea creature and paralysed with a tingling burning sensation coursing through my body centred on…

It wasn't until now that I realised most of the sensations were coming from my crotch .. and that my pants were starting to feel uncomfortably tight.

Swiveling my eyes down (and glad I could at least move my eyes!) I look at my groin and I'm stunned to see the sting had somehow caused an erection. Ok, this was fine .. I could deal with…

A moment later I felt the threads of my boardshorts start to give up their valiant battle one by one, my cock swelling past it's usual 6 inches (5 and a half if you actually had a tape measure…) my eyes going wide as the pressure built and built .. until finally those first few stitches giving up one at a time were the exception. All in an instant the rest of them gave up and 7 inches of cock burst forth, twitching and throbbing under the surface of the water as it continued to swell before my very eyes.

I really wanted to reach forwards, to grasp hold of my cock and feel the growth under my fingers, but paralyzed as I was, I could only watch on, both in shock and awe as I felt the skin of my cock grow tight as it grew and grew under the water.

The growth seemed to slow around the 7 and a half inch mark, and eventually stopped altogether at 8 leaving me wondering what on earth was in that creature’s sting that had caused this.

As the growth slowed and stopped, an almost serene sense of calm washed over me. While my angry red member didn't seem to calm down at all, the rest of my body, unable to move, seemed to just relax and even my mind started to wonder .. why was I stressed in the first place?

Sure something had stung me, but I was in a super relaxing position and my cock had managed to gain a few inches and an appropriate amount of girth. That was nothing worth complaining about. I wanted to grab hold and feel what the new heft felt like, but as long as it didn't shrink back to normal I should be fine to do so when the paralysis wears off.

As I lay in the rock pool, paralysed and unable to climb out, I finally noticed my throbbing, twitching cock was drooling precum into the water. It was hard to see, almost immediately mixing in with the salt water, but I could still feel everything my cock was doing, even if I couldn't do anything about it. I didn't think anything of my leaking cock, at least until I noticed some of the other fish braving the open waters .. lapping away at the water in front of me. What was going on here? Did they like the taste or something?

An errant twitch and throb, followed immediately by a spurt of cum as I let a little glob out proved that theory correct as a mini feeding frenzy started, the whole swarm stirring up the water in their feverish attempts to devour as much of my seed as I could. It was rather impressive how quickly the inch long fish managed to clean up the glob of cum I'd accidentally launched out. It felt thick and sluggish coming out, but once it was free the tiny fish just swarmed it, making it vanish in no time.

Relaxing as best as I can, I can't help but feel the corners of my lips curl into a smile. It would have been a full blown smirk if I had full function of my face, but as things were, the thought of feeding the fish like this was absurd and I couldn't help but smile.

Content in my relaxation, I allowed my eyes to close in bliss as I let the currents take any stress from my tired muscles. As I relaxed, the small fish swarm that had gathered before me hadn't exited their frenzy. They still wanted their tasty treat. That wanted more.

My eyes opened in surprise a moment later as I felt something pressing against- no, inside! Of my cock!

My breath caught in my throat as the first and bravest of the mini swarm of fish wriggled inside, moments later being joined by more, spurred on by the former's eagerness to squirm in after their tasty treat.

Jeez this was intense. I had no idea I was capable of this or that this was even possible, but since I couldn't stop this, I really had very little choice in the matter. Whether that weird sting caused me to be capable of this, or whether I always was and would have simply left if I wasn’t paralysed and allowed me to realise what my body could do, I wasn't sure. But as weird as it felt having so many fish wiggling and squirming and writhing their way down my shaft, right now I couldn't deny it felt pretty amazing.

Ugh~! That pinched! That first one finally made its way down my shaft and squeezed its way into my left nut with an oddly tight sensation.

As my cock throbbed around the others, my member almost seemed to squeeze the rest of the swarm deeper, almost a mini flood of fish compressing down my shaft, separating into each nut and squirming around in there .. while making more room in my shaft for the rest of the swarm to eagerly squeeze themselves inside…

And so these actions were repeated, my cock would clamp down on the fish in my shaft, slurping them all down into my ever increasingly full nuts, only for more fish to swarm inside, after that tasty cum of mine. Until finally the entire swarm was packed away and my balls felt like they should be pressing firmly against my thighs. I couldn't really check. Still paralysed, all I could do was watch my dick throb away before me, more or less covering my balls, which felt like they should have been huge, but confused my brain since my thighs said they weren't much bigger.

Too preoccupied with trying to figure out what was happening with the fish, I failed to notice another predator had been watching the entire time from the depths of the rock pool…

An octopus. A rather intelligent cephalopod that had been watching where all the fish had disappeared too and was hungry for its own meal. Far larger than any of the fish it was soon to prey on, I was startled out of my inspection of my own throbbing cock by a sucker coated arm attaching itself to my leg as the octopus drags itself closer to me in a startlingly quick fashion.

I would have shrieked if I wasn't still paralyzed and frozen in place. As things were, I could only watch on, heartbeat racing as the 8 limbed menace started to force itself in after its food. First a single limb forced its way inside, the suckers on the tentacle making a simply incredible sensation as they slipped inside, forced deeper by the hungry octopus. Then while the suckers latched on to the inside of my sensitive shaft, three more tentacles forced their way inside in quick succession, causing my vision to swim as the sensations coming from my cock were overwhelming, terrifying and incredibly arousing in equal measure.

So overwhelmed, I barely noticed the rest of the limbs forcing their way inside, then the creature's big, bulbous head squeezing its way inside, until I felt my stretched cockslit return to normal, the vast majority of the octopus currently being contained within my shaft.

I had enough presence of mind to look down once again, seeing absolutely nothing to show that an octopus was currently squirming around in my shaft. My cock had simply grown larger from the bite, but there didn't seem to be any outward indication of what was inside.

That's when the octopus shoved itself out of my cock and into my balls and all hell broke loose.

Immediately all the fish started thrashing around, trying to escape their predator, but they had nowhere to go. My cum was thoroughly churned around as the fish desperately swam away in the enclosed space, trying to avoid the octopus.

It was too much for me to handle. My eyes crossed and everything went dark as a feeding frenzy began in my balls.

:::

When I came to, it took a few moments for me to realise what I was staring at. As the waves crashed nearly silently overhead, I stared up from the bottom of the ocean, still lounging in the rock pool, only now it was completely submerged under the rising tide.

It wasn't until now that my peace and quiet was suddenly interrupted by the thought of .. how was I breathing?

Alarm bells sounded through my entire body, even as I started taking another breath of .. fresh .. water? Straight into my lungs, before breathing out again almost as easily as I did on land.

It didn't snap me out of my panic though. Immediately I start swimming up to the surface, only to realise just how alarmingly full my balls felt, bouncing and sloshing around in the water as I swim back to the surface.

Breaking back into the air, I cough up the water in my lungs, before taking a breath of fresh air, making me so incredibly confused that I now seemed to be able to breathe both water and air and it wasn't until now that I realised my paralysis had left me during my "Nap".

Realising my dick was still free, I tread water as I tuck it back into my boardshorts, taking a few moments to feel how much larger my gear was, even soft. That would take some getting used to, for sure.

As I arranged everything in place, I couldn't help but notice the fish and octopus no longer seemed to be in there but .. why did my nuts feel so full? And why did I feel so horny?

I didn't know, but as I swam back to shore before drying myself off and driving myself home, I only grew hornier and hornier as every corner sloshed my full sack around in my pants. I knew I was going to make a mess in my shower the moment I got home…