Rainbow Dash moaned as she watched Rarity slowly sliding a pair of white silk stockings onto Applejack’s legs. There was just something about the way the snow-white unicorn’s pale blue magic dragged those leggings up that made it painfully hot. Maybe it was seeing Applejack bound to the wall, the same way Rainbow Dash was, her forehooves in shackles as her hind-hooves just barely reached the floor. Maybe it was because of the other little touches that had already been added; the lipstick and eye shadow that Applejack normally wouldn’t be caught dead wearing, the civilized bun that her luxurious blonde hair was tied up in, her hat hiding in the lobby on a rack at Applejack’s own insistence. No, it wasn’t any of those. Rainbow was sure that it was watching as inch after inch of powerful, muscular leg was hidden from view. It was even better forty minutes into their little game, now that the short orange fur along those thighs was slick with arousal.

“Why darling, I do believe she’s enjoying the show!” Rarity teased her earth-pony pet. The prim-and-proper unicorn was the picture of contrast at the moment. Sleek black leather accented her naturally perfect curves, leaving all the best parts exposed. Her marehood was spread wantonly, slick with her own juices from watching her twin lovers squirm and wriggle like worms on a hook. She finished adjusting the stockings, and then trotted across the bedroom to go and pay Rainbow Dash a little attention.

“You like the stockings, don’t you, Dashie?” She crooned, standing in front of the bound Pegasus, resting her hooves on the wall just above Rainbow’s wings, which had been at full mast for the last half-hour. She leaned in, claiming a kiss from lips that were purple with lipstick of their own, claiming the inside of Rainbow’s muzzle the same way she’d claimed the outside with the blush that Applejack had refused at the price of a pair of nipple-clamps. Even now, a pair of small rubies glittered in the candlelight every time the vibe that was furious working Applejack’s clit make the workhorse’s hips shiver and twitch, the little weights tugging at her sensitive teats.

The picture, to anypony who would have had the great fortune (good or bad, Rarity would leave up to them), was one of perverse and shocking incongruities. Applejack, the proud and traditional apple bucker, was dressed like somepony had just caught her in a Canterlot sex dungeon. Rainbow Dash, the egomaniacal speedster who couldn’t sit still if she was paid, was bound to the wall, her entire body exposed in a sexual parody of angelic beauty, an impression only made stronger by the golden tiara fitted into a mane that was actually properly cleaned and styled.

As Rarity made out with the distracted mare, silver chains floated over in her magic and were delicately bound to the bases and points of Rainbow’s painfully erect wings. The athlete broke away from Rarity’s kiss, biting her lip hard to distract herself from the pleasure of having her prides and joys bound, even symbolically. Magic crackled along her wings like a thousand tiny skilled pairs of preening lips, moving her feathers minutely to thread them into place. When Rarity stepped back, the angelic impression was even more potent, sky blue feathers expertly mingled with delicate strands of silver leading down to small caps at the tip of each primary. Rainbow Dash was panting, her tongue lolling out as the stimulation ended.

“Awgoddess, Ra- Mistress,” Applejack caught herself at the last moment. As much as she hated being fussed over, she loved watching Rainbow receive the same sort of tender lustful care as she was getting. “Sure she didn-nnngh… didn’t come?” She asked hopefully, moaning through a particularly good twist of her hips that almost took her over the edge. They each had vibrators inside their bodies, pressed up against the spots that felt best. The twitching tugs at Applejack’s nipples were nothing compared to the feel of the toy throbbing up against her g-spot, telling her on an instinctive level to hurry up and get bred already. She had to fight it though; no matter how badly she wanted to climax, how eager she was to see Rarity’s plans for her obscene little angel, she wasn’t going to let Rainbow win their little game that easily.

“Hah… you wish!” Dash shot back, looking up at Applejack with a lustfully determined gleam in her eyes. “I’m… totally… winninnnng this!” Her breaths came in short, heaving pants after the whinny that had almost heralded a long-delayed orgasm. Dash thought fast; she needed to step up her game in order to win this one. What could she do that Applejack would never….

“M-Mistress? Do you have a dress for me?” She asked, looking at Rarity, actually glad that the blush on her cheeks would hide most of the blazing scarlet threatening to turn her cheeks into a passable imitation of Twilight’s. “Something lacy and frilly and… uhm… maybe… silk?” She added, glancing at Applejack’s stricken expression and grinning.

This will totally be worth it, she thought to herself, trying to psyche herself up. Totally, and completely, worth it, as long as nopony else ever sees me in oh goddesses what is that it’s gonna eat me! Her thoughts devolved into incoherence as Rarity grinned manically and opened her wardrobe, whirling out the laciest, frilliest, most terrifyingly feminine excuse for a wedding dress she’d ever made in the throes of an ice-cream-and-romance-novel bender.

“Will this do, darling?” Rarity asked sweetly, her eyes gleaming as Rainbow began to wonder if, just maybe, giving Rarity the chance to see somepony in that dress hadn’t been the worst idea she’d ever had.

No… no, that rock tower still wins. Barely, she decided, nodding as she screwed her eyes shut tightly.

“Applejack?” Rarity asked, looking over her shoulder at the earth-pony. “Will you accept a dress as well?”

Please say no, pleasepleaseplease! Rainbow pleaded, sure that one more notch up on the vibe would be enough to push either of them over the edge.

“I will take that one, Mistress, if it pleases you,” Applejack said with a deep swallow. Rainbow’s eyes shot open, her jaw dropping as Applejack’s accent disappeared completely. “And I shall speak properly for the entire evening.”

“No fair!” Rainbow shouted, definitely not squeaking the question out, squeaking was even more uncool than being subjected to that abomination of lace and frills would be so she didn’t squeak. “I can’t do that with my voice!”

“Hmm… Rainbow does have a point, darling, but I know how very much it means to you to be yourself… even if you are my prissy little princess for the evening,” Rarity giggled, grinning at the blush that spread up from both sets of Applejack’s lips at the comment. “How about this; if Rainbow is willing to cross one of her lines for me, like you’ve just offered, we’ll call it even. And Rainbow will be getting a proper hooficure before wearing the darling gown I’ve got picked out as a backup,” she said with the sexiest smile she could muster for the flustered pegasus.

Nopony touches my… oh buck me, if I say no… I’ll…. Rainbow whimpered as Rarity’s magic glowed, the faint twisting of the vibe pressed firmly against the weather pony’s g-spot a silent promise that if she said no, she would be accepting another notch. In the end, one thing made up Rainbow’s mind.

Rarity was a cruel, wicked, evil Mistress, who could get her two darling tomboys into the girliest, frilliest outfits she could imagine in exchange for a night of her personal focus. But she was their Mistress, and she still treated them with all the love and respect her pets deserved.

“Nopony. Touches. My. Hooves,” Rainbow said, determined to at least sound cool and dignified as she lost the game. The vibe clicked up to the next level, and as it pulsed against her g-spot one last time, all thoughts of dignity or being cool were lost with a wild cry and a gush of feminine juices down her legs.

The bonds came undone in an instant, and Rarity was there, holding her up, kissing her face.

“Shh, it’s all right Dashie, let it go, let me feel you, darling,” she crooned, embracing Rainbow tightly. Rainbow shuddered in her Mistress’ grasp, panting as her body trembled, her wings twitching fitfully as the afterglow slowly began to settle in. "Nopony thinks any less of you for losing, darling, nopony at all...." As Rarity lowered her down to four shaking hooves, Rainbow noticed that all the toys had gone silent, even Applejack’s. And the stricken look on Applejack’s face told her that the earth pony hadn’t gotten to come yet.

“M-Mistress?” Applejack asked nervously.

“Oh, darling, don’t worry,” Rarity giggled, recomposing herself in a flash and turning around, brushing her mane back out of her face. “I just want you my Princess to be very ready for her seamstress to… ah… take her measurements, as t’were.” She grinned up at Applejack, releasing her and trotting over for a lingering kiss. “You’re all mine, darling, and I’m all yours for the night. But you might wish you’d accepted a somewhat simpler gown to be fitted for, before we’re done.” Applejack whimpered, pressing her thighs together pitifully as Rainbow flopped down onto the pillow in the corner of the room to watch.

I hate losing, Rainbow thought to herself as Rarity began setting up the scene for the role-play that would dominate the rest of the evening, but some nights, it’s totally worth it.

Author's Note

Prompt: Even in the bedroom, Rainbow Dash likes to compete.

Why did this spawn a "competing submissives" scene between Rainbow Dash and Applejack, where Rarity feminizes them in exchange for cranking up the stimulation to try and make the other come first?

That's actually a good question, and it may have a little something to do with copious amounts of cold medicine....