You're a little late for your appointment, but you get checked in without much issue.

Pinkie bounces in the lobby, expressing her eagerness to go soak in a hot tub or the sauna after a long week's worth of parties. You tell her you're getting a "hot stone treatment," not entirely sure what it means. Pinkie just says "Sounds fancy!" and giggles to herself.

Soon enough the spa ponies come to collect the two of you for your various relaxation methods, Pinkie heading off with one to get her hooficure while the other looks you over almost incredulously.

"Sir, you signed up for the......hot stone treatment, yes?"

You tell her that is correct.

"Well, we require you to remove all clothing before we can administer the treatment."

Oh, well that's not so bad. Where's your robe?

"We...don't have any robes for....someone like you," she says nervously. "We've never had a human visit our spa before..."

Wait, what does that mean exactly?

"You'll have to remove your clothes before we can start your treatments. All of them."

"Do you have any large towels at least?"

The blue spa pony delegated to you shakes her head slowly, "I'm afraid you're much larger than any customer we're accustomed to treating." She makes a small smile, trying to ease your apparent misgivings, "Please sir, we're professionals. You have nothing to be worried about."

You start to relax from her words of comfort, something in your head giving way to the how she talks. It's just so soothing.

Even so, you request she look elsewhere while you strip and you keep your T-shirt covering your junk with one hand.

The spa pony giggles a little but tells you that's fine and leads you down a hall to a small room. You enter, the smell of incense and hot water hitting your nose, softening your sinuses and briefly making your eyes water. You wipe your eyes and take a deep breath, filling your lungs with the scent of hot sand and....cinnamon?

The spa pony instructs you to lay face down on two stretchers pushed together to suit your size.

You obey, lying comfortably on the padded stretchers in the softly lit room. The blue pony can be heard rubbing oils on her hooves as she prepares to massage you.

"Before we can begin the hot stone treatment I shall be massaging your body into a state of pure relaxation. Have you ever had a massage before?"

You recall the one time Pinkie tried to give you a massage, though it could hardly be called that, and give a firm "No, not really," in response.

The blue one appears in your peripheral vision, a small smile reflecting the dim light in the room.

"Ooh~, a first timer? Well don't worry, I'm VERY experienced."

Before you can remark at the comment you feel her soft yet firm hooves push into your lower back in all the right spots, sending a ripple of pleasure up your spine as you feel yourself melt under her touch

You're too large for her to reach all the spots she needs to from the side, and she gives a brief warning that she's moving before raising herself to straddle your back, legs spread off to either side of you as she works her touch on your shoulder blades, making your arms go limp.

She finally reaches the base of your neck, asking you to relax as she leans forward, practically laying atop your back now while running her hooves across the nape of your neck, causing you to shiver despite how relaxed you are

All this attention and sensual touching has taken it's toll on you, and you're actively fighting a losing battle to keep your erection in check

You feel hot breath on your ear as she leans forward all the way. "Feels good, right? Give me a moment and we'll start working on your front side...."

She hops off you, heading to the counter in the back where the oils are kept while you turn over

She hums a little tune while she re-lathers her hooves in scented oils, occasionally glancing in your direction

It's not long before she comes back and starts rubbing your feet, pressing the undersides firmly with skill before working her way up your legs, massaging your calves a little before starting in on your thighs

You instinctively grip your T-shirt closer to your groin when she starts massaging your inner thighs

She seems to mistake this as a safety concern. "Don't worry, I'll keep my hooves from hitting anything they aren't supposed to."

She finally moves on from your thighs and straddles your stomach, much like she did your back. She gently massages your chest with quick, firm movements, moving on to your forearms in due time

She gives a tiny grunt and wipes her brow with a hoof as she finishes. "My my, you're a big one. Well, now that we've had our fun it's time for me to get the heated stones." She hops off of you before heading to the door, "I'll be back in just a moment."

It's not long at all before she returns with the stones, but also with an assistant. It's the pink spa pony you saw take Pinkie off for a hooficure.

"This is my sister, she's another worker here. Since your friend is relaxing in the sauna now I figured she'd be able to help me. I hope you don't mind."

You see no reason to object

You roll over at their instructions as they take positions on either side of you

The first hot stone makes you jump before it's dull heat soaks into your muscles, causing pure ecstasy. You'll have to have Pinkie try this sometime.

They add more stones until your back looks like a quarry, covering even the backs of your legs

After a time they remove the rocks and have you roll over again before placing a select few on your chest, stomach, and they even slide one under each of your legs to get your thighs.

You may have resisted the urge before, but all this heat working into your muscles makes your blood shoot straight to your crotch

You don't actually notice, so lost are you in the relaxation technique, until you hear whispering from the two of them. You manage to make out something along the lines of "...wouldn't it be interesting though?"

You manage to look down the length of your body, your head swimming a little from the sudden movement

Sure enough you're pitching quite the tent and the two ponies are murmuring to one another not far from you

When the blue one notices your gaze she blushes a little before walking over to you

"...There's no easy way to ask this, so I'll be blunt. My sister is.....curious....as to what....it's like. With a human."

The other paws the ground, taking glances at you every so often

"Would you be...willing to fulfill her curiosity?"

You're not pitching a tent so much as an entire circus under that T-shirt now. The idea of railing that cute pink horse with the blue hair while her dextrous blue sister watches is too much to bear. That gives you an idea.

“Only if you join in too,” you state bluntly to her.

Her face turns red again, but she nods. “Alright then, just let me lock the door so nobody barges in on us.” You briefly think of Pinkie, but that though is removed as the pink pony with blue hair moves in on your prone form, climbing on top of the padded stretcher and moving to the space between your legs, removing the T-shirt from your groin and staring curiously at your hard member for a moment before opening her mouth and running her large tongue along the underside of it from balls to tip, sending a wave of pleasure through your relaxed body as her hot breath contrasts with her cooling saliva.

There's an audible click as the blue one locks the door before heading towards you. Not knowing their names is getting really awkward for you however, so you ask while the pink one lavishly licks your ball sack, taking one testicle entirely into her mouth and rolling her tongue around it gently.

“My name is Lotus,” the blue one says, “And my sister here is Aloe.” When she sees how lavishly her sister is treating you she can't help but run a hoof between her legs, touching herself gingerly in anticipation. She finally breaks her gaze away from her sister to look at you and ask, “What would you like me to do?”

You instruct her to straddle your chest, planting her quickly moistening snatch on your face. She bites a hoof as you begin to lick and prod her folds with your tongue, gently tickling the edges as she moans at the teasing. You plunge your tongue into her, causing her to gasp at the sudden intrusion. You lick her interior aggressively, taking breaks to lick her clit as hard as you can while stimulating one of her nipples with a free hand, grabbing a firm handful of her flank in the other. Hearing her sister cry out, Aloe shifts her attention from your balls to your cock, slowly licking up the underside of it again before wrapping your head in her thick tongue and lowering her head onto it, taking the entire member into the very back of her hot, undulating throat. She starts moving her head up and down, her tongue never stopping to lick only a single spot, but instead swirling around your cock in her mouth with every plunge of her blue mane. You groan in pleasure, the vibration from your voice stimulating Lotus' clit, causing her to bite down on one hoof as she tries to muffle her sensual moaning.

You don't want to end this sensation too soon, so you instruct Aloe to get on while continuing to lick and poke Lotus' folds. Aloe raises herself, a slight nervousness playing across her face as she lowers herself onto your cock with a moan of pleasure as you fill her. You turn Lotus around as this happens, causing the sisters to now face each other as pleasure plays across both their features, the sight driving them both further into a frenzy. Aloe begins grinding away on your cock while Lotus cries out from your persistent loving of her interior with your tongue and fingers, reaching ever deeper. You begin thrusting into Aloe as well, making her scream in pleasure at her first human cock. At this scream Lotus reaches over, grabbing Aloe's face firmly in her hooves before bringing it to hers in a sloppy open mouthed kiss, tongues running over each other as they slurp and moan from your ministrations.

The sound of Aloe's ass slapping against you echoes in the small, dimly lit room, threatening to drown out even their cries of pleasure as Aloe pushes ever harder on you, as though trying to split herself on your girth. Her insides press around your member, convulsing with every thrust, the heat becoming unbearable as you threaten to climax. The sisters aren't far off either from the sounds they're making, even muffling one another with their tongues the urgency to cum is evident in their tones. You speed up your thrusts, moving a hand onto Aloe's flank to pull her down harder onto you, causing your balls to slap on her ass even in this position, while you move a hand from Lotus' nipple to her clit, rubbing it between your thumb and forefinger while you thrust your tongue into her mercilessly. The effects are immediate, Aloe and Lotus both making a muffled “MMMMPHHHH!” noise into each others mouths. Aloe clamps down on your cock as she orgasms, the multiple convulsions, the heat, and their sensual cries pushing you over the edge until you thrust one final time, going as far as you can into Aloe, cumming wave after wave of hot, thick semen into her. Lotus cums not long after, releasing a spray of hot, sticky vaginal fluids onto your face. The three of you lay like that for a while, breathing heavily in the now muggy room, your scents mixing together with the smells of cinnamon and warm sand.

Lotus practically falls off of you when she tries to move, a happy exhaustion having overtaken her. Aloe follows suit, a slight popping noise being made when your dick escapes her nearly vice like grip, cum flowing in rivulets out of her snatch, slicking her fur into sticky patches dark pink.