“Everything in its proper amount.” That was the philosophy Lotus Blossom lived by, and she muttered it more than a few times as she ticked all the boxes off on her list. Bottles of lotions for lustrous coats, enough to make fifty ponies feel finer than fine? “Check.” Ten tubs of specially formulated mud, precisely enough to swaddle ten lucky ponies in the lap of luxury? “Check!”

Check and check and check again. Lotus Blossom loved knowing she had enough of whatever stuff the spa needed. Business had been dropping off something drastic as of late, and as Aloe was better with customers than numbers, it was up to her to make sure the Ponyville Day Spa could treat its customers like princesses. Especially for those times when the customers were princesses.

To Lotus, there were few things more important for a pony than a good, lengthy beauty treatment. Especially in the humble town of Ponyville where the locals could be a little more... well… ‘rustic’ than most! To put not too fine a point on it, these salt-of-the-earth dears and damsels needed her love and attention more than anyone!

Everypony, great and small, deserved the confidence to stand up to all Equestria and shout: “I am beautiful!” And under her and Aloe’s discerning fingertips, they would have it! She smiled as she checked the final box: three gallons of scented oils for making ponies smell like princesses.

Satisfied that everything was in its proper amount, she swayed and sashayed her amply-set hips all the way up to the front desk. Aloe was looking a bit lonely up there, after all. Despite turning the ‘Closed’ sign over to ‘Open’ an hour ago, she continued smiling - bright as sunshine - at a rather dark and dreary lack of customers.

“No luck, huh, sis?” she asked, sipping away at her mixed berry breakfast smoothie. The ice for it had come from the Crystal Empire, and only the highest-quality Dodge Junction berries had made it into the blender. A spa pony had to treat herself every now and then... and she’d just recently sworn off indulging in thigh-thickening milkshakes. “Do you want me to take a desk shift?”

“Perish the thought, sister mine!” Aloe said cheerily, her smile radiant as ever even with her eyes laser-focused on the door. “You work so hard taking inventory, I couldn’t dream of asking you to work the front desk, too!” Her smile cracked just a teensy, weensy bit wider. “And besides, it’s unlucky to abandon the desk until a customer comes in. I’m sure if I wait long enough, the customers will come pouring in, and we will be just swimming in business.”

Lotus peered into the abyss through the glass double-doors, and the abyss stared back into her; sunshine and blue skies for weather, but not a soul in sight. “Well, don’t wait too long, sis,” she said, as a tumbleweed bumped into the doors. “It’s morning on a Monday. Nopony needs pampering just yet. We’d need all the luck in Ponyville to get even one customer right now.”

“Oh, but wouldn’t just one customer be special in its own way?” Aloe said, eyes sparkling. “Just imagine all our facilities, all our care and attention, devoted to the pampering of one special filly! Ahh~” She sighed dreamily, her gaze drifting ever so slightly skyward. “It would be the visit of a lifetime. We could shower her with soothing treatments, dote on her with our devilishly skilled hands, until she’s putty within them. She’ll be so impressed with the quality of our service, she won’t hesitate to schedule treatments with us until the end of all eternity!”

“Wouldn’t that be nice?” Lotus Blossom mused. She chewed thoughtfully on her smoothie’s pink plastic crazy-straw. “We could always use more regular customers paying for the luxury treatments. Goodness knows, we wouldn’t meet rent every month without Rarity...”

“Exactly!” Aloe winked. “So that is why, no matter what happens, we must make sure the next pony to walk through our doors is made to feel exceptionally, positively, absolutely wel-”

And, speak of the Nightmare Moon, it was at just that moment that the doorbells tinkled out a cheerful little jingle jingle!

“-come!”

“Not right now, darling,” a bubbly mare’s voice giggled. “But I’ll be sure to keep your offer in mind!”

She wasn’t the usual sort of customer, Lotus could say that much. She certainly wasn’t dressed like one. Even in Ponyville, the average mare knew enough to dress up for the spa, to treat every visit as the up-scale event that it was! Most of their clientele arrived wearing only the nicest clothes in their wardrobe; their dresses jeweled and sparkling, and their hats feathered and floppy. It was a part of the spa’s ambience. Every mare who pilgrimed to visit Aloe and Lotus desired nothing more than to snuggle themselves up in the lap of luxury, even if only for a day...

This newcomer, however, seemed to have altogether different ideas about luxurious laps and what to do with them.

With her soft, rosy cheeks and exquisitely deep, dark eyes, the pony always seemed to be laughing about something. It put onlookers in mind of a prankster... or a cheeky little princess who had never learned her boundaries, and certainly didn't care to. That sly little smile - positively dripping a poisonous-looking shade of gothic black lipstick - was a hint to the world that trouble would never be too far away. Combine that with the silken weave of strawberry hair cascading down around her shoulders like a pull of soft-serve ice cream, and you had one very mischievous-looking pony! It was obvious from there why she was so plump and full-figured: this was a pony who simply couldn't resist indulging herself, even if it came at others’ expense.

Said troublemaking reflected itself on her choice of dress: the maroon mare wore a midriff-baring black tee - a simple thing with SUCK IT! printed across it in big, friendly letters - covered the important parts of her top, at least.

And for anypony wondering just what it was that required mares and stallions wide and sundry to drop to their knees and pucker up, the answer wasn’t far away. Eyes travelling downwards, over the smooth, opulent bulge of the mare’s well-stuffed belly, eventually reached a short black skirt... far from adequate in covering her legs... or the mouth-watering bulge swinging between them.

Her creamy, chocolatey thighs cradled a thick, throbbing cock that seemed simply too big for its britches - not to mention stitches. It swung freely between the mare’s thighs, her skirt sheerly inadequate in hiding any part of the monster lurking between her legs.

Lotus fought the urge to simply gasp at the sight of it all. But a customer was a customer, and she kept her comments to herself. At least this mare wasn’t entirely indecent.

Steeling herself, Lotus rested her eyes on her customer’s serenely smiling face. “Hello, um, ma’am…” She gulped. “Can we help you?”

“I sure hope so!” the mare chirped. She brushed a ruby red lock from her eyes. “This is the town’s spa, yes? The place where ponies can come to relax and take a load off?

Lotus was still reaching for the right reply when Aloe suddenly appeared at her side. She gently placed a pink hand, blood-red, inch-long fingernails and all, on Lotus’s shoulder, and squeezed herself into the conversation. “Yes, yes! You are one hundred percent correct, miss!”

Stepping in front of her sister, Aloe clapped her hands together. Where Lotus had floundered in the presence of that mesmerizing stallionhood, Aloe hardly missed a beat. “You’ll find no better place to relax than here at the Ponyville Day Spa. ‘The best of care makes the best of mares,’ as my sister and I often say! What brings you to us today?”

Well, wasn't that a shock? Lotus had always thought of Aloe as the boy-crazed one, the pony who was out chasing stallions while she was left doing all the paperwork. If Lotus's motto was "Everything in its proper amount," she would have joked her sister's was "Everything in excess and more besides!"

And yet here was her ‘kid sister’ - by a whole seven minutes - so comfortably handling a client who had given Lotus pause... Why, she could practically feel her heart swelling with pride!

At least, until she actually drew up alongside Aloe to see her twin's expression for her own. The second she lined up her heaving blue bosom with Aloe's, her confidence fell from her face and the alarm was heaped back on! In putting those sororal racks side by side (a dress-straining vista that a certain nearby customer couldn’t help but appreciate), she saw a baby-crazed look on Aloe's face that was normally reserved for ponies in heat. Unabashed desire bubbled over in those eyes.

Aloe bit her lip, swayed her hips, rubbed her thighs together... and perhaps worst of all, visibly loosened her clothes.

Maybe it was because once you'd seen one Spa Pony in the nude you'd as good as seen both of them, but when Aloe casually bared one of their matching birthmarks... Lotus sprang into action. She hurriedly moved in behind the other attendant to quickly tug her dress back up, before Aloe could show off any of their other matching attributes.

"Ahem! Aloe? Why don't you go prep a bed, mm? This certainly isn't the first time we've had a customer like... Ah."

Lotus extended one hand towards their guest, while using the other to gently pushed Aloe backwards. "I don't think we've had the pleasure. I am Lotus."

"Charlotte," replied their giggling guest.

"Right! This isn't the first time we've had a customer like Charlotte... We shall weather the storm, mm?"

Aloe eased back onto the front desk, scuffing her hooves apart. Her dress eased up a few inches as she looked on at Charlotte. "Are you, mm, kidding? She's like a Category Five Hurricane compared to those ‘storms’..."

“A Category Five!” Charlotte clapped her hands together. "Ooh, I love that! Hurricane Charlotte! Expect some flooding in your area."

She shot Aloe a wink, hips cocked ever so slightly forward. “That’s why I’ve dropped by here today, actually. I’ve just finished filling up a commercial-sized order, and I’m feeling positively pooped!” Another hip-thrust, so much more obvious than the first. “Why, it feels like I did business with every mare in Whinnypeg! Just such exhausting work for a dainty little pony like me, you know! I’ll need your very best service to get back on my hooves.”

“And you will have it!” Aloe said eagerly, slipping past Lotus so fast it left her mane rustling in the wind. She bowed low, until her pouty lips were but a hair’s breadth away from the tip of Charlotte’s twitching cock. “I hadn’t even realized we’d received such an important businessmare as a customer today. You may rest assured that my sister and I will pamper you today as if you were Princess Celestia herself.”

“Ahem!” Lotus coughed, pushing Aloe again to the side. Customer or no, it was her duty as an older sister to protect her younger half from the dangers of fat cocks. “My sister might have failed to mention the price tag. We’d love to treat every customer that way, but of course, the costs for such care can be very high. If you’d like to take something less expensive, we’ll under-”

“No need,” Charlotte giggled, pulling out a bag of heavy golden bits - though from where Lotus didn’t even dare to guess. “Business was good to me in Whinnypeg. I don’t know how much a day here costs, but think this should be enough, don’t you?”

“...It should be,” Lotus admitted, somewhat sheepishly. Her slender arms sagged under the bag’s weight as Charlotte dropped it off, so full of clinking coins that it - much like the mares in Whinnypeg - had been left looking ready to burst at the seams.

On the one hand, Lotus could feel the creeping sense of dread coming over her. Already she could tell Charlotte was going to be quite the handful, and that was before they’d even let her tuck into one of their delicious homemade protein shakes. She winced at the very thought of this bull of a pony slurping down one of those...

It was a recipe Aloe and Lotus had come up with together: a special formulation of vitamins and nutrients to increase both the quantity and quality of the gooey white stuff sloshing about in a stallion’s nuts. The shakes were a potent brew, too; even the meekest of boys could become testosterone-fuelled beasts when powered by those sweet, sweet beverages!

On the all-too-common occasions when Aloe had let those silly boys drink one too many, Lotus had had to attend them personally, rubbing their foreheads, whispering soothing words to them as her dainty, feminine hand blurred up and down their shafts. She usually chose short, simple words. Those stallions could barely form words, could barely even think, with their hot, plump, goo-stuffed spunk-tanks swollen up to ten or twenty times their regular size.

And, wouldn’t you know it? An “All You Can Drink” No Limits Protein Shake Package was part of the Princess Course. Hence her consternation.

Yes, if they could make the sweet, doe-eyed colts of Ponyville writhe and whine, begging for the relief of orgasm, what would they do to Charlotte? If anything between her legs got ten times its normal productivity, all of Ponyville might just get swept away.

On the other hand, though, wasn’t helping needy ponies exactly why Lotus ventured into this profession in the first place? Hadn’t she vowed with Aloe that any and every mare who walked through their doors would be made to feel pretty and special?

...

She didn’t even count the money Charlotte handed her, she simply set it behind the counter. It was unimportant. She’d count them later. The customer came first.

Besides, it seemed like there was well over a hundred bits in total there. To be treated like a goddess in the flesh at the Ponyville Day Spa, a mare only needed twenty-five.

So that was it. There was nothing more for it. All she could do now was be professional about it. “Right this way, ma’am,” she said, motioning Charlotte past the front desk. “The Super Special Princess Deluxe Course it is.”