>Cute, tsun futa loses a bet, ends up ringed and totally unable to cum for a full two weeks, ring is time-locked and can't be removed until the timer is up
>Didn't give her plump balls a chance to empty beforehand either, leaving her nice and frustrated from day one
>On top of all that, you've got special supplements for her- you're not really sure if they work, but for their price and what they claim, you're hoping it'll result in the massive production boost, increased libido, and sperm density it claims to provide
>She's the prideful, quiet type- never admitting to her lust, suppressing all but faint whimpers while nibbling on her lower lip, you once catch her frustratedly staring at her rock-hard, throbbing, dripping erection, knowing that ejaculation was impossible but still fighting a losing battle against the urge to stroke herself
>Every day, her balls are noticeably bigger. You've been taking pictures, of course- it's not until you look back over them that you notice they're slowly hanging lower and lower as well, from the sheer weight.
>As if watching her slow but steady growth sap her willpower and make the struggle against mind-numbing sexual desires wasn't fun enough, a handful of days before the ring is scheduled to pop off, you notice something else interesting
>Her overall growth is slower, but her balls are clearly firmer, almost as if all her gooey spunk has begun to congeal into a singular solid mass
>Her balls are full to bursting with spunk, her system so drowned in supplements that they won't stop producing more sperm even when her balls ache day in and day out from being so overloaded
>They've even darkened in color
>On the day of release, you tie her hands behind her back so that she can't touch herself, mere hours away from being able to ejaculate
>Spend those hours teasing and tormenting her, her balls so densely packed with spunk that it feels less like a liquid and more like a thick, rich dough
>Finally, the ring releases with a mechanical click, freeing her backed-up system
>Her heavy balls pull up as far as they can in imminent orgasm, which isn't far due to their sheer weight
>Her cock pulses... and pulses, and pulses
>It takes five or six spasms before any of her cum can be forced up and out of her shaft, and for a girl who can normally fire a rope of cum halfway across the room, it simply oozes out even slower than her precum did
>It's as thick, if not thicker than, gelatin, and sticks to everything; you have ample time to grab a large cup and place it under her before it begins to drip off of her shaft
>She whines, loudly, her first orgasm subsiding before she could get any meaningful release at all, barely a trickle of super-dense sperm

>She spends the next few hours in a state of constant orgasm, her body trying to unload sperm as hard as possible but still only managing a slow, steady dripping as you stroke her off and hold up her extra-heavy balls so they can unload faster
>Occasionally you stop, just to hear her whine in frantic need, before starting again

>You're not totally sure if her balls are empty or if what's left is completely solidified spunk, but you do know she let out three and a half cups of progressively nastier, more fermented, and more dense, compacted goo

>"If you can't drink- well, more like chew through- this mess you made in under an hour, I'm setting the ring up for three weeks next time."

_

"I promise I'll save it all up for you! Don't keep me waiting too long!"

God, how she regretted those words right now. She had already been pushing it- enduring a whole four days without release- but now, almost twice that length of time had passed. Nearly eight days. Today, she woke up- not really sure how she'd managed to sleep in the first place- already drooling precum clouded with sperm that simply had nowhere else to go. She put on some clothes and wondered what to make for breakfast, not even bothering to zip up her pants, her huge, swollen balls making that a fool's errand
She still hadn't actually made anything when her phone buzzed. The sound she'd been waiting on, news she'd been craving more than pancakes or fried eggs, the thing that would lead to relief, release of over a week's load of spunk. She didn't so much rush as she did waddle, her cock still leaking all over, demanding attention and making it so hard to focus on anything at all.
"You'll be glad to hear I'm finally boarding the plane now! Try not to blow your load just because I'm finally on my way. After all, it'll still be a few hours before I make it home."
It took all of her willpower to ignore the powerful, needy pulsing of her cock, the spurts of precum firing up and splattering against the floor. Her partner had been held up at the airport by severe storms, and that was after staying an extra two days than initially planned. Delay after delay, surely an annoyance for both parties... although for one, the pressure was higher than it had ever been.
In fact, she could feel it. It started yesterday, but it was so intolerable, unbearable today. Her balls -hurt-, agonizing over the absurd load kept trapped in her massive, fat, sweating balls. They were heavy, and dense, and aching, filling up more and more with every passing second. They'd run out of room a couple days ago- now, all the nasty sperm inside simply grew more dense as it fermented, causing that deep ache to grow worse. Even the constant leak of fresh sperm in her cloudy precum wasn't enough to offset her sheer rate of sperm production.
She did everything she could to ignore it, but knowing she'd soon be unloading every last drop of her semisolid spunk made her bite her lip with anticipation, feeling the pressure buildup like never before. Toast and a bowl of cereal were about all the breakfast she could focus on making, most of her willpower taken up with the effort of holding back. It felt like the slightest touch would send her over the edge. All she had to do was touch it. Just reach out, take her colossal shaft in both hands, and give it a nice, hard pump, up and down. That was all it would take.
Even if not for her now permanent erection, nearly so hard that it physically hurt, her blue balls made it just as hard to focus on anything but the desire to cum. They ached, endlessly, in agonizing waves that came on with every pulse of her massive erection. They were absurdly heavy, like lead weights, and so sensitive that merely walking made her want to cum from the way they bounced around. Today they were so heavy they barely bounced at all. That hellish aching came from deep within her balls, where the pressure was most intense. Some time ago, her balls had been loudly churning and frothing, as if trying to escape- but now, it simply sat, thickening and aging, almost as if brooding- and god, did it hurt.
Hours passed in agonizing slowness. She could not resist cursory touches- pulling away before she could get off, of course, but lending new insight into the severity of her condition. The veins running along her cock felt like they could burst at any moment, with how hard she was- every pulse made them leap, so much so that even her penis was aching along with her balls. Her balls were so firm, so full, and impossibly heavy- clearly reaching their physical limits. She held on, if only through sheer willpower, and the sense of pride that she could deny herself so long.
A couple of hours before her partner was scheduled to arrive, she let out a long wail of pure desire. She could feel it, in the core of her balls, where the aching was most intolerable- an unmoving, packed-tight mass, forming due to the intense pressure, much like a diamond. She wondered- could sperm solidify? What would she do if it could, if it was, if it already had? She thought- but not too deeply. Imagining it made the aching that much more severe, and the possible answers were only further torture. Maybe she was just imagining it- after all, she'd held it in for eight days, and had been getting minimal sleep at best as a result.

She waited, and waited, and waited- her willpower slowly crumbling, leaving only enough pride in her accomplishments to pull her hands away at the last moment, to leave her on the absolute edge of orgasm. She couldn't even bear to look at the clock. Had it been hours, or merely five minutes? Even her sense of time was warped by her overwhelming need to cum, to relieve the pressure in her balls. Anything. Anything to stop the ache, anything to stop the pressure slowly turning her thick batter into pure white concrete. She deliriously denied such a thing was possible- it was just the pressure, the sleeplessness, she'd waited so long, too long to give up, any minute now her partner would appear and give her the release she craved...

She didn't know it, but her partner had missed that appointment by over an hour. The only thing capable of breaking her out of her intense concentration, the only thing that she could sense beyond the slowly growing mass of inert spunk deposited in the deepest part of her swollen tanks- the buzzing of her phone.

The message was short and sweet- the flight had to be rerouted, due to inclement weather. All she had to do was wait until morning, and they'd spend all day making that long wait worth it. She let out another loud wail- all that hope, dashed. She'd just have to endure it, just a little longer. It couldn't be that hard. She told herself that over and over- she'd come so far, a little more, just a little more, she could do it.

Of course, by the time morning rolled around, her spunk would be completely solid all the way from the very bottom of her aching balls all the way up through her bloated tubing, even her prostate permanently engorged with a solid load- stopping at the base of her shaft, plugged permanently, unable to escape.

That would be fine, of course. All she had to do was endure it "a little longer".