An evening with Sweetie - by Rhurrs

"Ah... Aaah... Hah... Sisterrrrr..." At any given point in time, one mare or the other uttered those words,though they often ended up lost in the myriad of the sounds of sex. If seed wasn't being spewed across the floor by Rarity, it was being forced out of her stretched out backside courtesy of another gush from Sweetie Belle. The soundtrack of their union alone would have been enough to get anyone who was a fly on the wall off themselves and it continued for quite some time before Rarity came down from her orgasm and Sweetie Belle quickly followed, rendering the splashing gushing noise of thick semen to a mere trickle, the last drops of paint in the bucket as it were.

"Ooooooohf..." Sweetie's rigidity caught up with her as the rush of sexual tension wore off, the buildup of lactic acid in her muscles causing her fingers to lose their grip on Rarity's hips and her legs to wobble and then crumple under nothing more than her own weight. Down went the little mare with a soft thud and a bit of a splatter, her tush smacking flush into the puddle between her legs that she'd been adding to.

"Hah... Hah... Mnnf..." Sweetie's breath came in cute little chugs as she did all that she could to recover some of the energy that she'd spent. She felt warm and good all over, a soft flush spreading over her cheeks further giving evidence of the exertion, along with a few beads of sweat that were welling up at her brow. "Oh yes..."

Rarity herself slumped into the wall, but kept her weight off the floor with one arm pushing back, her opposite extending the afterglow as it pumped along her still rather turgid white member. Alabaster digits dug in a few times against the bulging underbelly to wring out the last bits of her climax, producing some quite large strands that went missing amidst the mess that she'd helped Sweetie Belle make. All the while her poor stretched out plot leaked the leftovers of Sweetie's impressive climax down along her leg, forcing her to leave her tail hiked high to prevent staining it's lower half with whiteness.

The elder of the sisters was the quickest one to recover, a push away from the wall necessitating a slight stutter step to keep her left hoof from slipping into the slimy mess she was standing in. "Well Sweetie Belle, how are you feeling now? A little better?" Her little sister certainly looked like she was going to need some time to recover from the way that she was panting, her more modest bust heaving with each and every breath that she took.

"I do Rarity but..."

"Surely you don't need to cum more STILL darling?" Rarity looked down at her sister with a mix of surprise and disbelief. How much more could Sweetie really need? Especially since there did seem to be a bit of a sag beginning to form in her little sister's member post orgasm.

"N-No I mean..." Sweetie played her index fingers together and tried to both look her sister in the eye and not look her in the eye at the same time. Whatever she wanted to say, she was struggling to actually get out. "Well... You're still hard looking and well... Um, I want to make you feel as good as you just made me feel is all!"

"Oh. Well I'll be fine Sweetie Belle, you don't have to worry about me at all, big sister is more than used to having to let an erection go down from time to time." Rarity chuckled and did all she could to wave her hand and blow off the offer rather than put her little sister out. "Remember last fall when I got all those orders from my fall line? Well big sister had to ignore quite a few erections in the morning or after a shower because there was work to be done! It's not a big deal, truly!"

"But big sister..." Sweetie, never one to mind a mess, pushed her dainty little hands right into the cum soaked floor, pulling long strands of her own ejaculate with on the way up, only to leave her with cum icicles on her fingers that she shamelessly wiped off upon her ivory backside. "I want to return the favor, you're always so generous with me and... Well I thought that you would scold me for what I did and instead you helped me, made me feel so good and... I don't care if I have to clean the mess all by myself, I just want to thank you for it is all!"

"Silly little Sweetie, you really don't need to, you don't, I'm... Awfully big for you..." Rarity had a legitimate concern there as she was really so large that she looked like she might stretch her little sister out to the point of ruination if her little dainty plot even tried to take all of that horsecock!

"I don't care Rarity, I really really REALLY want you to~" Sweetie did her best to look sultry, turning and swishing her two toned tail, flagging it and holding her cheeks apart with her hands, almost forcing herself on her sister, doing all that she could to push her posterior against the towering ivory member and grind along it. "Mmm, you're so warm sister, and so thick too, I'm sure that you'll feel just perfect inside, I don't mind if I'm sore afterwards!"

Rarity was still on the fence about allowing her little sister to even try such a thing, but Sweetie, emboldened further by the lack of her big sister saying anything to the contrary or actively doing a thing to stop her, continued to press. "I can only imagine how full that you'll make me feel too~" Sweetie scooched herself back a few more inches until she was so flush with her sister that Rarity's shaft angled itself nearly vertical.

The elder sister took a half certain, halfhearted step backwards, only for Sweetie to push flush again in a flash, the little mare was too sincere or too lust drunk to take no for an answer and Rarity had to admit to herself that Sweetie was a very lovely little mare in her own right. Common sense slowly gave way to desire and Rarity sighed amidst the last vestiges of her protest crumbling inwards. "Very well, but at least let me lie down so that you can take me at your own pace, that way you can pull off if it becomes too much for you."

It took a while for Rarity to even find a good spot to lie down at all, there weren't many spots on the floor that didn't have puddles of cum or at least stray sprays or droplets upon it large enough to lie a pony upon. Eventually she found one and settled herself into it, taking care to not let her mane or tail stray into the mess that surrounded her on all sides.

Sweetie Belle was all over her sister the instant that Rarity had settled down, pouncing upon her opportunity by pushing herself between Rarity's cock and body and then stepping backwards, using her frame as a wedge to force it upright once again.

"Ooooh, big sister you have such a biiiiig dick~" Sweetie's adorable voice trilled as she began to grind her back half into the towering shaft. A single hand slipped behind and was used as a brace, enabling the young mare to slide herself up and down with gyrations of her hips that made Rarity worry about her little sister sometimes. How a little pony like Sweetie Belle would know anything about using a dick like it was a stripper pole was beyond her, but hopefully it was a mere coincidence that Sweetie was doing it like that.

If Rarity had been flagging at all, her sister saw to it that she was not going to stay that way, the rubbing, sultry actions and words had her throbbing despite her initial reticence. A healthy firmness shoved right back against Sweetie, trying to force the alabaster pole back into it's normal place, only to provide a much better support for Sweetie to work her body back into it with even more abandon.

"Oooh, I just can't wait any longer Rarity, I want to feel you inside of me!" Sweetie backed up even further, her balls dragging along Rarity's shaft as she went, angling Rarity further and further back until she could feel the tip flared out just past her eagerly twitching ashen pucker. Sweetie didn't hesitate for a moment to bring a hand down and cup up under the underbelly of her sister's dick and make it press firmly into her hole, smearing whatever lubricant that Rarity was producing against her. The little mare continued her movements, wisely making about a dozen passes to ensure that Rarity's flare and every inch of the area from her bulged taint to her asshole was sopping with precum.

Even in Sweetie's mind she knew that this was going to be a stretch and the rubbing had been a bit of waffling on her part, staring off the end of the high dive into the water below and gathering up her courage to take the plunge. Before she had waited long enough for Rarity to sense her hesitation though, Sweetie threw herself into the act in an effort to get it over as quickly as possible, pulling up with that hand, angling her backside and shoving it down with all the might in her body.

*SQUELCH!* Plot stretched faster than it likely should have, fuck flesh and precum noisily invading the young mare's insides and leaving her ass stuffed beyond anything that she had ever even thought possible. "RAAAAAARIIIIITYYYYYYYY!" Sweetie's shriek was loud enough that it would have even been audible outside of the boutique, but the determined, or perhaps more accurately, stubborn little mare, rather than pulling back, pushed her butt down again, all the more firmly, not giving Rarity a chance to pull back and slip her dick out of her squealing sister.

Just as Rarity had been brought back to full rigidity, Sweetie too went from the half hard state that she'd been in while rubbing away and trying to be seductive towards her sister into the raging ashen beast that it had been before. The stuffing of Rarity inside of her so deeply that Sweetie swore she could feel her sister's flare somewhere in her stomach and the outright assault on her prostate gave Sweetie the most imposing, raging hard-on that she'd had all night long.

The intent to make Rarity feel good was still in there, but the delicious fullness and the dull ache inside of her from being stretched far beyond anything Sweetie had ever experienced led the little mare to suddenly care much more about her own needs as well. Her bubbly little butt began to lift up and down as she braced herself against the floor as best she could, trying to slide herself along Rarity's dick as eagerly as possible. It took some work to even move much at all, but the longer that she was nigh impaled like that, the more that her body accepted it and loosened up, allowing her to slip upwards and downwards a few inches at a time, gradually managing to make more and more appear and vanish until she was sliding a foot or so of Rarity in and out with every cycle.

Rarity just sat there, gnawing upon her lower lip while watching Sweetie work, forcing herself to not thrust up, to not stretch her sister to her limits like she'd done with many a mare in the past. It would have been ultimately futile to try because Rarity was indeed, too large for Sweetie Bell to take all of. Groin to plot, there was a good foot of her engorged log of mare meat that never even came close to being worked into Sweetie's body. Instead it served as more of a firm base that let Sweetie squat down and bounce up upon.

Watching Sweetie trying her hardest was an example of lewdness in its basest form, she squeaked, squirmed, grunted and gasped as she worked. The whole time, her ashen member spent flopping up and down like a toggle switch, slapping Rarity's breasts and her own, playing the most lascivious game of ping pong imaginable. Some of those squeaks Sweetie issued coming courtesy of that huge dick of hers when it smacked her right in the face. Sweetie's modest chest had nowhere near the airbag like cushioning power of her elder sister's mallowy large bosom.

The impacts did detract from the experience a little bit even if it was adorable to see Sweetie working hard enough to cockslap herself over and over, only to work right through it like she didn't mind. "Mfn. Sweetie darling, slow down just a little!" Rarity managed to catch her sister's shaft as it came down to impact the larger bust once more and hold it in place to keep it from springing upwards. "Here darling, hold it like this, I'll make you feel even better!"

Sweetie paused, surprised at the change and looked down at her big sister curiously, but did comply after the short hesitation, pushing both her hands down with all the force she could muster against a tool that wanted to spring right back upwards and would have if it wasn't being forced to do the opposite! It was then that she saw what Rarity was making her do, her generous, gorgeous sister pulled her breasts apart so that Sweetie's girth nestled into them and then pushed them back inwards, wrapping titflesh around dickmeat like the warmest and most plush of fucksleeves.

"Now rock your hips darling, back and forth like you're trying to fuck my tits." It was a simple command and one that Sweetie very happily obeyed, shortening her own strokes against Rarity with her hole, but making them even more frequent also now that Sweetie had a gage to work by of pushing forwards just enough to bump into or come near Rarity's lips and then pull back until her flare had disappeared into Rarity's cleavage.

It could not have been any more perfect the way that Rarity saw it, and the slightly reduced friction allowed her to hold out a little longer than she would have been able to while Sweetie was furiously bouncing her vice like anal hug up and down. But she could feel it building even now, another orgasm that her body was more than eager to give in to and feed to Sweetie in suppository form.

Sweetie could tell it was coming as well, this was not the first dick she'd ever had, she could tell what the signs of an impending orgasm were just as well as the next mare. The way that her sister was tensing, the way that her cock was swelling up, bulging inside of her, it all pointed to one more release from her big sister!

"Oooh, you're going to cum aren't you sister? You're going to blow your huge fat load aren't you? Oh, oh cum for me big sister, cum for me Rarity, I want it, I want your hot sticky cum in my ass, I want to feel every drop inside of me!" The way that Sweetie spoke it was as if at this moment, the sexiest thing in the world would have been for Rarity to simply do nothing more than sit there and blow her load while Sweetie milked every drop out that she could possibly manage!

Rarity couldn't have held back even if she wanted to. She'd been worked up to the point of no return and right now she was swimming in a haze of her own desire to the point that she just wanted nothing more than to pour semen into Sweetie Belle until the eager, greedy, naughty little mare couldn't so much as ask for a single drop more. She just wanted to stuff her dirty little sister with jizz until all she could do was mew and gurgle.

*GLORB!* That was the sound of cum exploding somewhere deep inside inside of Sweetie's stomach, causing the young mare to gasp as the force of it ramming into her belly caught her off guard. She didn't get a chance to catch her breath though, her sister was bountiful and 'generous' with good reason, those huge nuts were now properly worked up to a full release and they did so with fervor. Again and again Sweetie's insides were assailed with buckets of cum until just as she'd done to her big sister, Sweetie Belle's stomach started to bulge with the excessive volume.

Sweetie's cute little voice had started out as a trill series of 'yesyesyes, cum, cum for me Rarity, cumcumcum!' but the more that Rarity came, the more the little mare started to just squeak and gasp, trying to find her voice, to locate words for this. She never managed to do so. The only sound that Sweetie was able to muster was that of a loud moan that started in the back of her throat and grew louder the longer that it spilled from the songstress' lips. A decidedly ecstasy laced "aaaaaAAAAAAHHHHHHHHH!"

There was no proper way for her to convey the rapture that was going through her, the pleasure ensorcelling her mind and body from all of it and once more, the little mare found herself going rigid, her mind slipping away from herself and her vision going wonky at the corners from an impending climax.

Rarity saw the little mare's cumslit yawning open wide and somewhere in the recesses of her brain a reflexive instinct to shut her eyes triggered and not a moment too soon either. A tsunami of cum exploded into her face at point blank, catching her right across the mouth and muzzle, the stream pouring and pouring for a stunning amount of time as it covered her face, buried it in cream, sopping into her hair and pulling it to the ground, leaving her laying in a puddle of the stuff from the shoulders up.

Sweetie's cry of pleasure was cut off again as Rarity once more ejaculated into her sister, bulging poor Sweetie's stomach out to the point that she could feel it pressing against her arms, making her trail off into a 'AAAAHHHH-Ngllng!' For a moment she went hoarse, her mouth hanging open unable to make a sound even though she was trying, air leaving her throat with a soft hiss instead.

The next load Rarity had fixed that little problem for Sweetie very nicely, finally reaching the limit of what Sweetie could contain and sending it surging down the all too tight union in creamy, glue thick ribbons that began to adorn the base of Rarity's cock, her thighs and her balls. All of that somehow managed to make Sweetie pull in a deep breath and then squeal out in the same mind rattling 'AAAAHHHHHHH!' that she'd been droning on with before.

Just in time too, for another creamy, heavy gout of pony spunk surged out in retaliation over Rarity's face, washing in sheets over already snow white flesh and painting what wasn't the same fully this time around. No traces of Rarity's blush or eyeshadow were left as Sweetie hosed her sister down, making Rarity look like she was wearing a differently colored mud masque. Likewise, the deep velvet of her mane was long gone, caked with so much semen that she looked like she'd dunked her mane in a vat of conditioner and let it soak.

So much for clean spots in the room, so much for keeping herself or her sister presentable. Both mares were going to need a LONG shower after all of this, especially the eldest and the room was going to need to be scrubbed down floor to ceiling and even then, there was no promise that the overwhelming scent of sex that hung heavy in the room like Rarity had hosted some sort of orgy, would go away anytime in the near future!