Where Paths Lead

by Damaged

Rating: mature
Tags: Romance, Original Character, Rarity, Pinkie Pie, Sex, My Little Pony: Friendship is Magic
Length: 5617

When Rarity comes home to her boutique one night, she finds a very special Pinkie Party waiting for her.

Rarity has lived with Valiente in her head for a year. She had misgivings about the new being living within her—originally created to destroy her utterly—but in Valiente she found a sister, one she was not only supportive of, but proud of. Pinkie Pie knows about the two-fold mare, and knows that there is a special thing she needs to do for Valiente, to make her welcome.

Contains: BDSM (bridling, gagging, tying up, crop usage -nothing beyond a light welt-) and two mares finding out something new about themselves.

This is a gift to a good friend. Thank you, Penalt, for making a wonderful and interesting world, even if it is a little dark. The events of this story occur one year after the start of The Bridle Path.

See This Blog for licensing.

Published 2017-01-10 21:10:02 UTC
Last updated 2017-09-24 09:21:42 UTC

A Big Surprise

Pinkie Pie looked left and right. Carousel Boutique was dark and still, except for the soft sneeze of somepony across the room. "Shhh—" She had to cut her admonishment short, the sound of hooves outside echoed loudly.

"Sweetie, whatever has gotten into you? I was just going to visit Applejack to order more…" Rarity wasn't as good at sensing general things, as Pinkie Pie was, but she felt an imminent sense of "social danger" that at first put her into a bit of a panic, until she fought it down.

Good work, sister. Valiente's mental voice was soft, she was bound in velvet ribbons within Rarity's mind. The duplicate of Rarity's soul, forged by dark magic into a whole other being within her, gave only comfort to Rarity. But you just know Pinkie Pie is hiding behind that sofa, right?

Rarity began to turn, to look through the gloom at the sofa Valiente had indicated. When the lights in her boutique came on, before everypony stood up, before even Pinkie's cannon fired, she knew this was some kind of surprise party.

"SURPRISE!" Nopony disappointed Pinkie Pie, nearly everypony in town managed to dive out from behind cover at the same time to yell the word.

Batting her lashes in mock surprise, Rarity looked around at the "Happy Birthday" banners, the balloons, even the huge cake. "Darling, this is wonderful." Rarity didn't hold back from hugging the pink mare. "But it isn't my birthday."

"Of course not, silly-billy," Pinkie Pie giggled and put a party-hat on Rarity's head, "it's Valiente's birthday!" She unloaded her cannon again, shooting streamers and confetti in a wide arc.

It is? Valiente tried to lift her head inside Rarity's mind, but the ribbons kept her bound. She… she threw a party just for me? Shock and surprise registered, along with an absolute need to hug a particular pink party pony. She didn't have to ask, her sister relented. The changeover was smooth, Valiente reached out a hoof as Rarity passed her, tracing from Rarity's neck, all the way down her sister's spine to her plot. Thank you, my heart. "Pinkie?"

The change in tone was obvious to Pinkie, she knew immediately that Rarity was gone, that Valiente was the mare in control. The way the white unicorn stood, the way she looked, the way her eyes moved—was different. But if all that wasn't enough, it was the quick movement forward, the soft lips pressing to Pinkie's own, that really gave Valiente away. The kiss was there and gone again, faster than even Rainbow Dash could fly. "Valiente! Happy birthday!" The kiss didn't phase Pinkie one bit, she bounced in place.

She is anything but innocent, we both know that. Rarity stood inside her own head, watched her sister enjoy her party. Ribbons, pretty and matching her mane and tail, snagged Rarity's legs first, spiraling up them, twisting around in opposite directions to form long sleeves of woven, glossy fabric. The pull was impossible to fight, Rarity was drawn down to the ground. She squirmed only a little as yet more of the ribbons flung themselves over her, wrapping her body and legs up snugly, then weaving together and forming a bow at her withers.

"How did you know?" Valiente levitated a glass of apple cider across, sipping at the spicy drink.

"Well, that was easy-peasy-lemon-squeezy! You see, I sent a letter to Twilight, but she couldn't remember. So I sent a letter to Princess Luna, but she was too busy looking after Twilight. So I sent a letter to everypony in Canterlot. I am still waiting for a few to get back." Pinkie tapped her chin. "But I found out the exact day you first talked to Rarity."

"So many letters, for me?" Valiente couldn't help but blush, it was one thing to be tolerated, another to be accepted, but this was more of a welcome than she had dared hope she would get. "How many were angry?" she asked, grinning conspiratorially.

"About half, I learned some new words from some of them, do you want to hear?" Pinkie's bounce seemed to continue, as if she could never be distracted from having fun.

She is nervous. Rarity squirmed a little in the ribbons, but they were more than up to the task of keeping her bound. Pinkie tries to hide her worries, but she has a tell.

I think our friend should be allowed to hold her secret for when she wants to reveal it. Valiente spoke the words to Rarity, in their head. In the physical realm, she took another sip of cider. "So, what games do we have to play?" Her eyes brightened when Pinkie almost exploded on the spot. Now I am intrigued.

"Time for the cake!" Pinkie laughed and fired her cannon again.

~~~~~+++++~~~~~

The party progressed, with Valiente ensuring she greeted everypony, even her "little sister," who was in on the surprise. At last, however, the first guests started apologizing and departing.

"Once everypony is gone, I can give you my super-duper amazing present."

Pinkie Pie's voice startled Valiente, it was so unlike Pinkie that it actually put her on edge. It had felt like the pink party pony was literally running her tongue down Valiente's spine, it all came from Pinkie's chest, deep and sensual. She looked around for Pinkie, but she was already across the room, herding more ponies from the boutique.

"I-I-I am going to spend the night at Apple Bloom's house." Sweetie Belle looked up to Valiente, then across to Pinkie, who winked at her. Smiling more, she jumped forward into Valiente's hug that was waiting. "I love you, big sisters."

Valiente squeezed the filly. I almost cry every time she calls us that. She gave Sweetie a chaste kiss on the forehead. "You go and have fun."

The moment the giggling filly was out the door, Pinkie was beside it. Showing attention to detail, she turned the lock closed, securing the only exit. "She can go and have fun, but you are staying to have yours." Pinkie turned on the birthday mare. "It's my special talent to know just what to get somepony. You," Pinkie trotted up to Valiente and poked the unicorn on the chest, "were a big problem.

Unable to even see where Pinkie pulled the collar from, Valiente felt when she reached up and quickly, expertly fastened it around Valiente's throat. The clasp gave a loud click. S-S-Sister? Valiente's mental voice was uncertain. Why would Pinkie Pie be fastening a collar around our throat and— She cut off, her physical voice giving a squeak of shock. She had certainly not been ready for the crop that impacted her left plot.

"I said, 'Get on the bed.' " Pinkie lifted the crop again with her hoof, but to her delight Valiente was scurrying toward the bed. "Good birthday-filly." Pinkie had to fight not to crack up, this had taken a lot of work to learn, and she was dedicated to making sure her friend had the best night of her life. Trotting up behind Valiente, Pinkie stopped and watched as the unicorn climbed up and started to roll over. "Stop! On your belly, back legs back, forelegs forward."

Valiente didn't dare turn to look at Pinkie, she was the essence of submission, and although she wanted to beg her pink pony mistress for more, she held back. She felt Pinkie grip her right-back hoof, touching it, feeling it. Slowly, Pinkie worked up her leg, tracing the angles of her body, then working over her rump.

"Oh!" The gasp was of pure delight, Valiente had lifted her tail on instinct, and apparently Pinkie needed to check every inch. As the soft frog of Pinkie's hoof found her vulva, she ached to move, to push back, to get everything Pinkie would give. The moment she moved, however, the touch was gone and in a heartbeat later the crop came down again—across her other cheek.

"Tonight, you are mine." Pinkie had rehearsed, she would never say these words to her friends, but this particular friend needed to hear them more than she needed air in her lungs. She had spent hours in front of a mirror, reading the words out, but something was very different saying them to Valiente directly, she felt that she meant them. Running her hoof up Valiente's spine, Pinkie continued, "You will only call me Mistress Pink, and the last word from your mouth, will always be 'Mistress.' Am I clear?"

Staring at the bedhead before her, Valiente first just nodded her head. This wasn't a dream, this wasn't a fantasy.

It actually was your fantasy, darling. Rarity gave a slight titter. I can't stop seeing them in the back of my head when you daydream.

"I said, 'Am I clear?' " Pinkie brought the crop down again, striking over the top of the first mark.

"Yes Mistress!" Valiente had longed to say those words. She had ached to say them. They had been everything she always wanted to say, to her friends, to anypony she loved. "Yes Mistress, I will always call you Mistress Pink, Mistress." She gave a happy sigh when the crop rubbed from her sore plot, over her vulva.

"Poopie." Pinkie tapped the inflamed and swollen nether-lips with the crop. "If you say that, I will stop. Do you understand?"

Valiente was already nodding. My own safe word… "Yes Mistress, Poopie is my safeword, Mistress." She actually felt a good swoon coming, and she would never have expected Pinkie to be the cause of it.

You seem quite distracted by this. Dare I think that Pinkie Pie has tamed my sister? Rarity only let Valiente hear her fading chuckle, not her whimper as the ribbons pulled a bit tighter. Anypony would think you like using the word "Mistress."

While Rarity spoke to her, Pinkie had been at work. Valiente saw that there were the most delightfully embroidered scarves spiraling around each of her forelegs, tied to the upper two posts of the bed. She didn't have quite her sister's full love for fashion, but she could spot quality when she saw it. A tug at one of her back legs was Pinkie fastening that, similarly.

With just one limb to go, Pinkie felt real excitement. She took out the last of the softest scarves she could find in Manehatten, and bound Valiente's remaining limb to the post. Her pet was spread out on her belly, no way to fight or get free—and it made Pinkie want to "party" all night. "Tail up." With one hoof Pinkie raised Valiente's tail so it was arched high, the other forehoof brought the crop up and under it, pressed to her dock. "I don't want to see that waver an inch."

Valiente's throat was tight, she could barely say the words she needed to, that she wanted to. "Yes, Mistress." Each time she used the title, it wound her tension a little tighter. She was like an alarm clock with no hands, whatever the release would be, the timing would be a surprise.

Fastening the straps of a new toy to herself, Pinkie checked it out by standing on her back legs. She couldn't help but giggle at the big waving dong. Her giggle turned to her own needy sigh a moment later; the only one she had been able to find had a base that had to fit inside another mare, her.

Not knowing what was coming, Valiente had resolved not to look around unless told. When the thick shaft prodded her vulva, she broke her promise and looked back. Her eyes were wide, Pinkie had the biggest strap-on she had ever seen and was just about to—

Pinkie dug the toy into Valiente nearly halfway, she watched the white mare's face melt into bliss as she was filled. "You like that?" She pulled back and shoved forward again, feeling a slight mirroring of the feeling through the insert within her.

"Yes Mistress, thank you, Mistress. Please don't stop, Mistress…" Valiente's head was slumped on the bed, she was bound and being screwed, and it was with a pony she trusted to do those things. It was perfect.

"You know what, you talk way too much." Pinkie pulled back, dragging the toy from Valiente. Stepping forward, she held up a complex array of straps, with what looked to be a big ball-gag in the end.

Valiente knew what it was, were it any pony but a friend, she would shy in worry from the bridle. But it was Pinkie. And besides, it looked deliciously tight. When the ball of the gag was held before her mouth, Valiente opened wide for it. Pinkie started pulling the bridle over her head, and Valiente couldn't help but push forward into it. Waving the big toy under her belly left and right, Pinkie hummed while she finished fastening the bridle. When at last it was snug, Valiente lifted her voice and cried out in pure happiness, though only a bare whimper got past the gag.

Pinkie was following her script, she mostly kept to the timing, but she was starting to ad-lib. "Much better. Now, I can focus on plowing my pet." The word, the feeling of dominance it gave sent a shudder down Pinkie's spine. At first she thought it was her Pinkie Sense, but when it just seemed to make her already warm depths hotter, she knew better. She is my pet, my beautiful pet.

There was a flaw in Pinkie's plan, that Valiente could clearly see, but it was a little one. She couldn't use her safe word with the gag in. In a way that added to the wonderful situation, a slight sense that she was going to be used and played with, and she had no way to stop it. It was a fantasy within a fantasy.

Grinding her hips forward, the toy going all the way into Valiente, Pinkie heard the rude sounds, and felt the feedback the toy inflicted. She wasn't even thinking straight now, simply bucking Valiente's plot, stuffing the toy in again and again. What she didn't realize was that in her exuberance, she was bringing the crop down against the three diamond's on Valiente's flank each and every thrust.

Neither mare was set to last too long, each was in a fantasy that worked between them so well, it had made for an instant connection. When Pinkie's passage started to tremble, she fought on to keep her pace.

Valiente couldn't hold back a moment longer, the constant strikes on one side had broken the threshold between pain and pleasure, and as her body hit its peak, the sting only added to the moment. She screamed, she groaned, she moaned, and whimpered; not a sound was heard, even when the pink mare atop her collapsed forward, the gag was perfect.

Breathing heavily, Pinkie rubbed up and down Valiente's sides, from her shoulders to her belly. She felt whatever part she wanted to, and it made her giggle. "All mine!" She shifted her hips, then jerked back. Looking at the mare, her eyes landed on the welts on Valiente's thigh. "Oh no… no no no no! Oh Valiente I am so sorry, you should have said poopie if I was hurt—" She cut off, finally realizing her mistake. Trembling like a leaf, Pinkie rushed to unfasten the bridle, pulling it off her friend's face. "Are you okay? I will take you to the hospital and…"

"Mistress Pink." Valiente looked up at Pinkie Pie, her flank hurt a little, now the orgasm had faded, but her afterglow was still blurring the lines enough that it wasn't bothering her. "Your pet is perfectly fi—" She had never seen bondage undone so fast. The scarves were whipped free seemingly all at once and she was pulled into a tight hug.

"I didn't mean to hurt you, I was just trying to give you a night you would enjoy, but then I started having a little too much fun and it felt good to just keep the act up and then I wanted to gag you and it…" Pinkie gasped for a breath. "It seemed right to give you a little more of the crop and then I didn't realize I was giving you a lot of the crop and now I saw that I gagged you and how could you use your safe word if—" There wasn't a lot that could stop Pinkie mid-outburst, but a kiss from Valiente was now on the short-list. She stared into the mare's eyes a moment, until they closed, a serene look of submission coming over the white unicorn.

The grip around her tightened, Valiente felt the legendary strength of Pinkie pin them together, holding the kiss. When Pinkie's tongue shoved at her lips, she had no inclination to halt it, and opened her mouth to invite the invasion.

The kiss, like all truly good ones, had to come to an end. Also, like all good kisses, it was over too soon. Valiente's lips ached for more, she felt Pinkie's tongue slowly pull back and out of her mouth. "I was safe, Mistress." It was a speech habit that Valiente hoped would get Pinkie's excitement back, and it did. "You left my horn uncovered." She took one of Pinkie's hooves in her own, slowly lifted it up and kissed it, then she raised the hoof higher still to touch her horn. "This is my safe word with you, Mistress." But Valiente felt a stirring inside.

You wouldn't stop her. There was no heat in the accusation. Pinkie could choke our pretty throat and you would smile up at her. I am your safety net, Valiente. Rarity squirmed briefly in the ribbons again. Tell her. The words were like a command to the deeply submissive Valiente, Rarity felt her sister was even more-so than normal.

"Mistress Pink. Rarity wants me to tell you that if you ever overstep, she will tap out for me, Mistress." Valiente saw the look of worry finally leave Pinkie's face, the smile that replaced it was like looking into the sun. Valiente lost herself in the tight embrace of her new mistress.

~~~~~+++++~~~~~

"Pinkamena Diane Pie!" The crier got the attention of everypony in the throne room, although the pink earth pony that walked slowly up the carpeted floor—each step a stately and somber, careful pace—was less overwhelming.

"Pinkie Pie." Princess Celestia smiled at her visitor. "What brings you to Canterlot?" She eyed the oddly serious-looking mare, knowing her to be acting very different from her normal boisterous self.

Pinkie brightened a little, smiling to Celestia. "Well, you know me, always doing crazy stuff… she looked to Celestia's left. "Buuuut, it isn't you I was here to see, Princess Celestia." Her eyes locked onto Luna. "I have come to buy something."

Celestia looked to the side, at her sister. "Curious, and what is it you were going to sell, Luna?"

"W-We don't know." Luna, Princess of the Night, looked back at Pinkie Pie. "What have we that you wish, Pinkamena?" She felt the gravity that the little mare brought with her, and felt it her duty to maintain it.

"Valiente says you own her, her and Rarity." Pinkie took a deep breath to calm herself, looked up at the startled eyes of two princesses. "But if anypony is going to own my Valiente, it will be me."

Author's Note

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A Special Encounter

"I don't think this is how 'after care' is supposed to work, darling." Rarity shifted a little, and was blissfully aware of Pinkie Pie's body stretched along her own. Her thoughts were slow, as were Valiente's. It was so easy to relax in Pinkie's embrace and forget the world even existed.

Pinkie Pie had grown up in a hurry. She still worked at Sugarcube Corner, but now she had her own house; she needed it for her new responsibility. She slowly ran a hoof along Rarity's mane, remembering what it smelled, felt, and tasted like. "It's like dessert." In the special room that had a bed, but was not for sleeping, Pinkie held her submissive girls close.

Rarity felt a gentle nudge, and didn't resist her sister's need to speak.

"How is that, Mistress?" Valiente had no other name for Pinkie Pie. She adored her wonderful pink dominant, and in her embrace Valiente could relax.

"Well, you know how when you are a foal, your mummy and daddy would have said, 'You can't have your dessert until after you eat everything'?" She felt her pet's head nod slowly.

Nuzzling mentally at Valiente, Rarity felt herself surface again. She kissed the underside of Pinkie's jaw, making a soft noise in her throat. In her head, close to the surface, Valiente purred in delight. Not for the first time did Rarity wonder at how close both of them could be to the surface while in Pinkie Pie's care.

Squeezing her pets, Pinkie pulled Rarity tighter against her, pinning the soft, white muzzle to her own throat. "I have my dessert before my meal." Pinkie curled her tail around and coiled it tightly around Rarity's, and pulled it up sharply. "And after, too."

Two voices as one, two minds controlling the same body. Rarity and Valiente moaned together in Pinkie's forceful embrace. Relaxing muscles that had grown tight, Rarity felt Valiente's approval as she kept nuzzling and kissing their mistress.

"Did you see what I found today?" Pinkie knew the switch was flipped. They were no longer just cuddling, and instead were now in a scene. The tone would be set by Pinkie's words, and she chose them wisely. When Rarity's soft snout rubbed side to side, Pinkie knew she was shaking her head. "I visited Zecora."

Valiente now moaned, her mouth pressed to Pinkie's throat. Between her back legs, Pinkie's tail had arched, pressing into the thick-lipped and aroused vulva of the twofold mare. Rarity joined her own moans to Valiente's, and together they sang a duet for their mistress from the same mouth.

"I got an extra special potion from her." The sound of her submissives' cries was music to Pinkie Pie. It was the raw expression of happiness, and happiness was what Pinkie Pie was all about. She leaned forward, pitching her body to roll Rarity and Valiente onto their back, with Pinkie on top. "It will make a mare a stallion for just a night."

Rarity broke from Valiente. Unlike her sister, some things seemed to need just a little more thinking. In her head, she felt a soft giggle, and knew her twin understood. "P-P-Plaid."

Pinkie's game stopped, and she looked at Rarity with an uncharacteristically—for Pinkie Pie—worried look. "Rarity? What's wrong?"

Days sometimes passed when Rarity had given up working out how Pinkie could immediately tell her and Valiente apart, but today she knew it was because she had used her own safe word, not Valiente's. "I-I am happy for the—the sex, Pinkie, but I don't think we are ready for a foa—"

Pressing a hoof to Rarity's snout gently, Pinkie giggled. "Shhh. This is a special potion." She drew her hoof back, rubbed it down and under Rarity's chin to tilt it up. "I would never do that without talking a whole bunch first. Foals are serious."

Rarity, her fear assuaged by Pinkie's promise (even if it wasn't a Pinkie Promise), nuzzled against Pinkie's hoof, and felt a snuggle in her head from Valiente. She wasn't even aware when such had started happening, but as she nuzzled at Pinkie's hoof submissively, she felt the pressure of Valiente's lips on her own as a ghost of sensation.

Valiente had given up confusion and even logic. She wasn't sure how Pinkie Pie knew to kiss them just as they were kissing each other, but the threefold kiss made both her and Rarity melt in bliss. It hadn't been easy to both be so close to the surface, but Pinkie had been the key.

Drawing back from her submissive mares, Pinkie locked eyes with them. "On the bed. Rear up, face down. Offer your head to me." Pinkie rolled off with a laugh of joy. She watched as the mare she had known only as Rarity—before the mishap—arranged herself exactly as asked.

"Thank you, Mistress." Valiente only spoke part of the words, she felt Rarity in full agreement with them, filling in around her concepts. She held their form, and adored how perfectly synchronized Pinkie had them acting.

"Hold still now. I have a big plan for tonight, and some new things." Pinkie picked the bridle up with her hooves, and carried it over to the bed. "Close your eyes." Both azure eyes drew closed, wrapped in perfectly made up eyelids. Pinkie brought the bridle up and to her pets' mouth. "Open up." The lips and teeth parted eagerly, practice at taking a bit showing in the smile that still curved the open maw.

When Rarity felt not a bit, but a stallion shaft push inside her mouth, she moaned into the intruder. It wasn't long, but it didn't need to be. Rarity's mouth was stretched around the thick, spongy dong, and she couldn't resist mouthing at it.

'Suckle at it, sister,' Valiente said, within Rarity's mind. She stroked one bulging cheek with a mental hoof, and in the planescape of their mind, they were both now being fitted with perfect copies of what they physically wore.

Rarity couldn't talk, not that she needed to. With her eyes closed, she moaned within her head, and without. Straps pulled up her cheek, and around her muzzle. Her jaw was squeezed against the intruder, and when she heard a buckle being fastened behind her head, she knew she would not be saying a word.

"You remember your gestures?" Pinkie breathed the words right in her pets' ears. She reached up and stroked their horn. A spill of bright, cornflower blue magic spilled around her hoof. "Good girls. We are going to have to play with your horn more, I think. Open your eyes."

Valiente opened their eyes, only to be still in darkness. She gasped a breath through her nose as she realized Pinkie had blindfolded them. A new wave of submissive bliss poured through her, and she knew it originated from Rarity.

Pinkie left her pets for a moment. She walked over—ensuring her hoofsteps could be heard—and found the odd bottle of blueberry juice that she, and not Zecora, had prepared. Lifting the bottle, she noisily gulped down the contents.

Rarity heard the sound of guzzling. She was a touch nervous, but her trust in Pinkie was more than enough to deal with it. Her mistress and friend would not hurt her, and Pinkie absolutely would never lie.

"Oooh!" Pinkie rolled her eyes and forcefully stumbled. "I can—I can feel it growing, pets!" While her pantomime continued, she lifted the new strap-on she had brought and started fitting it to her lower body. "Wow, I can't believe how sensitive a cock is!"

Almost ready to climax on the spot, Valiente leaked submissive glee all over their shared mind. Rarity was swamped in the amazing thought that Pinkie Pie would go this far for them. Together, both of them pushed their hips up a little higher, and Valiente felt Rarity spilling tears of joy down their cheeks.

Pinkie froze at the sight of blue eyeshadow leaking out from under her submissives' mask. She took a deep breath, and opened her mouth. "Checking in." A soft green glow enveloped their horn, and Pinkie could plainly see Valiente's "okay" gesture. "Thank you, Valiente."

Rarity kept weeping in bliss, ignoring what mess it would make of their makeup, only glad that her sister had been able to respond to Pinkie. A soft breeze blew past her hips, and her tail lifted up not by her own means, but thanks to Valiente.

In a very happy frame of mind, and knowing full well Rarity shared it, Valiente moaned extra loud when she felt the first touch of Pinkie's tongue along their exposed folds. She squirmed and fought, desperate for more, but not daring to move her hips away from her mistress.

The moment Pinkie's belly landed on her croup, Rarity felt the reality of the situation. She managed to stop weeping in joy, and locked herself into a quivering state of anticipation. The first touch of a warm, strong stallionhood pressed to her wet vulva.

Valiente screamed into her own gag, not sure anymore if she were screaming into the physical one too. She wanted it, she needed it, and she hoped against all hope that her mistress would give it to her.

Pinkie pushed forward. Her ears rang with the sound of two mare groaning into a very large gag. Feeling little resistance, she angled her hips and pushed further. "This is so intense. Rarity, focus. You are in control of your vaginal muscles. You trained for this, we trained you for this."

Tears of joy returned. Rarity was in control of her pelvic muscles, and she squeezed down as she had practiced, milking at Pinkie's hot shaft.

Pinkie groaned. The sound was authentic, but it wasn't from Rarity squeezing at what the submissive thought was really a penis, it was from how far Rarity had gone to train herself. "Good pet. Hold still. Here I come." Pinkie leaned forward, sinking more of the thick toy—attached to her by straps—into the hot body under her. "Valiente, you must make sure Rarity can feel everything."

To her delight, Rarity could. Valiente didn't need to do anything, not when they were sharing so much, and so Rarity felt when Pinkie's groin pressed to her rump, and she squeezed down for all she was worth.

The shaft pulled from Valiente. She would have howled if she weren't gagged so perfectly. She tried to move backwards, tried to reclaim her master's shaft, but Pinkie's strength was the stuff of legends. Just knowing that her mistress could crush stone with her hooves, yet be so gentle in bed, warmed Valiente further.

Already rocking her hips forward, Pinkie Pie filled her pets back up again. Pull back, push in. "Oh! You are so tight!" Pinkie had no idea if they really were tight, but the words were always sure to please. "I can't believe how good it feels to be a stallion!"

As Pinkie Pie's pace grew, Rarity lost all semblance of control. She couldn't do what Pinkie had asked anymore, barely able to even provide her mistress with a good, stable platform to breed them from.

Valiente reacted to the word, "breed," and was happy to hear it in such a positive light from Rarity. Each thrust seemed to push them closer together, and each thrust also pushed them closer to orgasm.

Losing herself first, Rarity trembled and just softly whimpered into the gag. She couldn't take the pleasure anymore and gave herself to the dominance of her mistress. Pinkie Pie seemed like a blend of animal lust and pony control, and it was an intoxicating drug.

Rarity's release, a mental one only, pulled Valiente toward her own end faster. When her sister hit a second orgasm, it thrust Valiente into her own, and triggered their body.

Pinkie heard the twofold mare scream in orgasm, shooting sparks of blue magic from their horn, and could also feel the strong hip muscles shove back to claim all Pinkie's toy had to offer. Reaching an orgasm due only to her dominance and the sound of joy, Pinkie slumped down upon her submissive girls.

Without her sight, Rarity's descent from the clouds of pleasure was slow. She swore she could feel Pinkie's hot, virile seed flowing inside her, at least she hoped. The thought surprised her a little, and she knew this was going to be a topic to talk about soon.

When the buckle holding the bridle on came loose, Valiente was in no rush to ungag herself. She felt Pinkie Pie lying on their back, could feel the huge shaft inside her, and was very happy with her place.

"I like my cake before and after." Pinkie's words were slurred, her thinking a little slow. She nuzzled around at her pets' ears, enjoying just being close.

Rarity realized exactly what it was—with the clarity of being in Pinkie's embrace—that made her and Valiente so close. It really was Pinkie Pie. After all, she mused, how could either of them really have control of their body over the other, when Pinkie Pie was in full control?

Author's Note

This was because I know someone who needs to hear from his girls, even if they are well-gagged by a bridle. Be well!

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Awesome ponies who are already helping to keep me in keyboards and rum:
A.P.O.N.I.
Airy Words
Boulder
Canary in the Coal Mine
Daremo
Dio-Drogynous
Ian
Javarod
Mary Rowland
Nils
Sirion123
Tanis

And special thanks to the following, for careful eyes and friendly words:
Airy Words
Cross Lament
Vutava