Heard It All Before

Expanding on my (fairly) new Futaverse, previously seen in Good Morning.
Thanks to Akane and OmniScribbler for beta reading and additional contributions.

The image I used is of an original character by hiiaru on Pixiv (first image). However, the particular version I used (with the cock uncensored and sweat drops removed) appears to only be on rule34.xyz, unfortunately without any helpful source listed (it cites the above Pixiv link). I suppose it's possible that System, the individual who uploaded the picture (assuming the account belongs to an individual and isn't a bot of some kind--hard to tell with a name like that), made the edits, but there's no way to know for certain.

All persons depicted are fictitious, not owned by me, and above the age of 18.

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TRANSCRIPT:
Oh. Hi.
Let me guess, you're simply fascinated by my cock--entranced, intrigued, enthralled, so now you want to get a closer look. Yeah, you're not the first, nor will you be the last.
Yes, yes, it's amazing, right? So big and shapely, girthy and firm, adjective and adjective, yadda yadda yadda. I've heard it all before.
Really, it's not all that impressive. It's only twice this size erect. I can only cum for two weeks before needing a break. My sustained cumshot only produces 53 mL per second.
Hm? Oh, I suppose that might sound high to the likes of you. I certainly wouldn't be able to cum that much if I had normal testicles like yours.
Evolution was very shortsighted when designing testicles, so we futas responded by altering evolution and adding magical enhancements. Futa testicles are naturally indestructible like our cocks, which means I can lie on mine like this no problem. We also don't have refractory periods. Our production rate is already beyond any non-futa, but improving it beyond that point is where magical modifications come into play. It's common for futas nowadays to have perfectly efficient balls, capable of producing as much cum as desired. But even then, they will inevitably need to stop. Only the most powerful futas can keep cumming indefinitely... or at least until they get bored and stop voluntarily.
Anyway. It would take a normal human over 11 hours of constant ejaculation to ejaculate the 70-ish liters of fluid in a human body... theoretically, anyway. I can manage that much in 22 minutes--that's not hard.
Yes, very observant: my cock is still this big. That's because it's also not hard. Hate to break it to you, but your awed presence isn't quite enough to get me riled up.
What? Is it really that surprising that I'm this big flaccid? I suppose you'll be even more shocked if I clarify my 53 mL per second is when I'm flaccid.
Goddess, you non-futas are so easily impressed. Yes, I can ejaculate while flaccid. It's effortless and feels orders of magnitude better than your best orgasms. But that's child's play compared to a proper ejaculation while erect. To get something truly satisfying, you have to put some actual effort into it. If you're going all out, then your balls will swell much larger too. Imagine having a literal cannon between your legs.
My record is 312 mL per second for close to five years straight, or about the volume of 19 Olympic swimming pools. That's honestly pretty unremarkable... but of course, you're stunned.
Oh, now you want to know how old I am? "Whoa, five years just spent cumming? How is that even possible????? I can't fathom something as mundane as that!" Seriously? Do you mortals not have any concept of privacy? Suffice it to say I'm centuries older than you, thanks to spending plenty of 'time' spent independent of the passage of time. We futas do that often to enjoy marathon orgies without being confronted by nuisances like you.
Was that not subtle enough for your tiny monkey brain? My apologies, let me rephrase: leave. Now.