"Ohohoho... Oh... Oh my... Mm, that feels divine... Mm, I've never had such a hooficure," purred a very happy Charlotte.

“Well I’ve never had such lovely hooves to work with,” Aloe said. The file clasped between her dainty fingers gently worked back and forth over Charlotte’s sensitive hooves, making the Alchemist squirm and purr in delight. Every little scrape of the steel implement sent new shivers of pleasure down her spine.

Charlotte was stretched out nice and comfortable on a Roman-style couch in the main sunken lounge of the Day Spa. The already-huge room, built to house more than a dozen pampered at any time, looked positively cavernous with just the three of them occupying it.

And her voice sounded extra loud in that yawning silence, which made Lotus blush all the more at what she said next: "Tell me, though,” giggled Charlotte. “Do they normally involve this much tongue?"

Aloe looked up from where she laying between Charlotte’s legs... handling the hooficure, of course. She worked busily away at Charlotte’s dainty hooves with her file, fire in her eyes and tongue kept securely in her mouth. No, it wasn’t hers that Charlotte had been talking about, after all.

No, while Aloe was occupied delivering her Equestria-famous hooficure, Lotus was the one Charlotte referred to. She knelt behind her, allowing Charlotte to use her lap to rest her head, while she leant over to dote on Charlotte with soft kisses. Their tongues playing frisky games inside the Alchemist's mouth.

At first, Lotus had told herself she was only doing it to distract Charlotte from taking too many long, drawn-out slurps on that protein shake in her hand (her third already!). But then, she realized that Charlotte was eminently kissable... Even when Lotus did manage to scoop up a few drops of the drink on her tongue, she never quite managed to get away before Charlotte drew her back down for another kiss.

In the end, Lotus found herself feeding Charlotte like a baby bird: she happily pushed the raw building blocks for flash-flood levels of spunk production into Charlotte's mouth, coaxing the teasing temptress to swallow, coaxing her bitch-breaking dick to rise. Rise, swell, and grow very, very fat.

And that was cause for concern. Even as her lips locked time and time again with Charlotte’s, Lotus’s eyes couldn’t help but wander down and worry. Charlotte’s cock, big enough before, was growing altogether too cocky for her liking.

The sight of sheer, unrestricted growth had Lotus even more mesmerized than a tasty mouse before a big fat python. Not a bad metaphor at all, she thought to herself... This member must have done its fair share of pouncing onto unsuspecting ponies.

Seeing it grow before her was just like watching a Unicorn’s magic at work, the impossible taking place right before her eyes. Charlotte’s meaty, throbbing cock was already soooo big, so nonsensically, ridiculously large... and now it was working on shattering its own records!

Lotus was left speechless. It was as if Charlotte’s cock itself had poked and prodded its way into her mind, barging even the simplest thoughts out of the way. When it swayed left, she swayed left, and when it swayed right so too did she. It just looked so, so good that she couldn’t help following its every little motion. Not even her wildest fantasies of rampantly bulging, swelling shafts growing could even come close to matching this.

Not the way Charlotte’s oil-black girl-pole squished more and more between her thighs... running out of room to grow until the Unicorn finally sighed and spread her legs apart, allowing endless inches of cock to ‘settle’, dominating the space between her thighs.

Not the way it started growing out and out, passing her knees and continuing to expand... only to suddenly begin to riiiise. Lotus could hardly hide her shock when that magnificent pole turned its sole eye up towards her, shifting in a moment from lying flat and dormant to surging up off the couch. Charlotte’s nuts had run out of room to grow under the ruler-straight mega-cock, and were now lifting its barrel to the sky as if Charlotte was planning on downing clay pigeons, or passing Pegasi… Lotus almost fainted at the thought!

But most important of all... The thing that really left Lotus speechless... was the way Charlotte boisterously widened the gap between ‘biggest’ - her - and ‘not biggest’ - absolutely everyone else. Surely this greedy pony already knew she had many, many inches of girth and length to swing around. She might as well have been a ghost story mares told their fillies to make sure they didn’t grow up to be sluts, “Or else Charlotte will get you!” But despite knowing this, Charlotte guzzled down shakes as if she’d started with something more like a one-inch pecker. The more she grew, the more she wanted to grow.

And the more Charlotte grew, the more Lotus’s little blue mouth drooled. Charlotte’s already-towering length was rising higher by the minute, bobbing this way and that as it was buoyed up by a pair of plump, churning nuts that had long since blocked Aloe’s head from view…

Aloe! Oh, no. Lotus shuddered to think of what might happen with her sister placed so near to such a thing. Charlotte’s shaft was an altar to virility itself, a tall, throbbing black obelisk of musky flesh that dripped and drooled precum like anointing oil. It demanded, commanded worship, and Aloe was make its perfect priestess. What naughty thoughts she would have when that tantalizing, heat-readying smell reached her nostrils, and her eyes drifted from Charlotte’s hooves toward it. Without her big sister’s responsible influence, nothing could stop her from lusting to snuggle it, nuzzle it, lick it, suck it, love it, and fuck it!

“Mmmmwah!”

Lotus’s thoughts were interrupted by the wet-suction pop of separating lips. She gasped and found her lungs burning for sweet, fresh oxygen. Just how long had that kiss lasted? She’d been worrying over Charlotte’s cock for so long it felt she’d forgotten to breathe!

“What a kiss!” Charlotte giggled. “You’ve got a very, mm, talented mouth, miss Lotus! How much practice have you had with it?”

Of course, Lotus had been raised a lady, and a lady simply didn’t kiss and tell. “N-none at all!” she lied straight through her teeth. So maybe she did have a long and storied history of flings with cute stallions, and maybe Aloe had recently begun preferring lovingly long, drawn-out goodnight kisses with bedtime stories and warm glasses of milk, but those hardly counted!

She decided it would be best to change the subject. “A-anyway… Aloe! Have you finished with miss Charlotte’s hooficure?”

“All done, sister mine!” Aloe said, her face poking up over the shelf of Charlotte’s magnificent flare. She blew the dust off her file and smiled. “You will hardly find smoother or shinier hooves anywhere in Ponyville.”

“Allow me to double-check!” Lotus said hastily, setting Charlotte’s head down on a comfy pillow. It wasn’t as soft as her lap, but it worked nice enough as a substitute. She circled around to inspect the work, and found herself impressed.

“Very nice,” Lotus agreed, stunned. Looking closely, Lotus saw no fault in Aloe’s work; rather, the only flaw she could find in the lovingly-polished hoofsy was her own wide-eyed expression. It was simply a perfect hooficure; contrary to Charlotte’s thought-corrupting figure, her hooves looked pure as the driven snow.

“Say, um, sis...” Lotus lowered her voice to a whisper, hoping their customer wouldn’t hear them over the engine-like rumbling of her ever-productive balls. “How did you manage all this with that… ah…”

“All that what?” Aloe said innocently.

“All that… that! You know.” She motioned in Charlotte’s general direction, which amounted to motioning toward Charlotte’s cock. “That!”

“Ah, I see!” Aloe whispered back, comprehension dawning in her eyes. “You mean thaaat.”

“Yes, that!”

“Ooh, Lotus Blossom, you aren’t pining for our oh-so-cute customer, are you?” Aloe giggled softly, a teasing little sparkle in her eye. “We are professionals, remember! You cannot allow yourself to have naughty, naughty thoughts about our customers.”

Aloe smiled slyly. “At least... not before that step in the treatment~”

“...Right.” Lotus felt her face grow hot with ripe-red embarrassment. All her consternation about Aloe giving into temptation, and it turned out that she was the one daydreaming sinful dreams. Well, Lotus reflected, if even a responsible pony such as I can fall victim to Charlotte’s charms, what better proof is there that I need to look out for Aloe?

Lotus slipped in beside her lovely sister, easing one pale body against the other. She was rubbing and squeezing Aloe’s shoulders before she knew it, and only now realized how antsy she had become. They itched to touch, and touch often. “Remember: professional thoughts, professional conduct.”

Now side by side, the pair's eyes tracked slowly across the great expanse of Charlotte's ripe, pleasantly-plump form.

And when they reached the centrepiece of the whole affair, Charlotte's gloriously turgid and erect member, their eyes watered. Both girls felt a familiar ache between their legs as their pussies filled with warm need, cute and puffy little slits no match for something so very ordinant.

The protein shakes had very much agreed with Charlotte's veiny rod: the black shaft of pure power rose high into the air, each heart-stopping throb making it visibly swell and puff out, expanding in time with the blood pumped through it. The tip leaked, but perhaps not from arousal: the sheer amount of energy Charlotte had ingested had been magically enchanted to proceed directly to her massive member, and now it was simply struggling to contain it all. The power contained in Charlotte's handsome cock would soon need to be released... and just from looking at it, it seemed inevitable that it would do so inside a pair of cute and cotton candy-coloured ponies. The very concept of such a lovely pole's seed being spilled onto the ground seemed almost... offensive...

Lotus winced as she stared at it. How did one even go about pleasuring such a massive thing? She winced as vivid thoughts flashed in her mind: thick-set mares left squirming and squealing atop Charlotte’s waist - countless black inches still left untouched and unloved as they struggled feebly for more. No, she shook her head idly. That won’t do...

She trailed a few fingertips down her throat, as if familiarizing herself with her own esophagus, and its uses, for the first time. In Lotus’s humble opinion, oral sex was one of the most... vulgar and obscene acts a pony could perform. The mouth was a sacred thing, the pearly gate through which every mare communicated her dreams and desires... to take that away from a pony was to treat all that as insignificant compared to the need of a thick cock to cum.

Were Charlotte to pound down Lotus's sweet throat, she would be silenced. She would be a wet hole to drool and froth and hum for more. But she would also be bottomless... able to take Charlotte to the base, and able to offer her sweet, stretchy belly up to her goddess. She would be made a repository, a reservoir, a dumpster for cum; one that would swell with swimming pool volumes of semen, and bigger beyond.

It was so humiliating.

She was so wet.

Maybe if Lotus had been left to her thoughts for a few more moments, she would have already started to yawn open that slippery pussy-replacement just under her eyes and extend her cum-slurping tongue... only to hear the doorbell jingle-jangle.

"Ah! Another customer!" she gasped. And she immediately remembered she could not be seen like this. Charlotte could not be seen like this. They were already so close to fucking like animals in heat.

She rose up with a nervous laugh, halfway between chuckle and a cough. She’d meant for it to be quiet, but in the cavernously empty salon, the sounds of her shame echoed in triplicate. "I'll get that! Aloe, you get Charlotte out of si- I mean, into the sauna! Yes, she’ll be nice and cozy there! I'll be along in a jiffy."