Marigold the bat pony glanced up from her copy of Kawaii Bat Monthly as someone knocked on her apartment door. It wasn't every day that she got visitors this late at night, but she shrugged it off as Sunny forgetting her key again. Probably lost it while she was out clubbing.

I really have the world's most useless sister... Marigold thought to herself, stretching her legs and adjusting her flannel pajamas as she shuffled over to the front door.

"All right, all right. I'm here, okay?" she said huffily, as her late night visitor banged on the door again. "You'd better not have lost that key, you dumbass..."

When Marigold swung the door wide open, however, she clammed right up as she saw the compromising state that her sister was in. Sunny was butt naked,.one arm clasped across her tits whilst she did what she could to cover her pussy with her other hand. Her tail was bunched up and dyed white to resemble a bunny's, and the poor thing was covered from head to toe in body writing and stallion jizz. Judging by the way that cum dripped down her inner thighs, it was obvious that more than a couple of her partners had decided to fill her up, top. Marigold raised an eyebrow inquisitively, stepping aside to let her poor wrecked sister inside.

"Who did you piss off?" Marigold asked, more impressed than angry at the sheer volume of cum dripping off of Sunny and making a mess of the floor.

"Fuck you," Sunny growled, shivering and moaning ever so slightly as she staggered her way to the bathroom to wash up. "I need a drink and some new clothes right fucking now..."

"What happened to the ones I got for you last week?" Marigold asked. "Don't tell me that you lost them! Those were expensive!"

"I didn't lose them!" Sunny snarled, staggering into the shower and turning on the hot water. "It was that fucking magic time-stopping hippo who keeps fucking with me!"

Marigold sat back on the sofa, running her hands through her long purple hair. She settled for burying herself in her magazine again.

"You know how crazy that sounds, right?"

"Don't care!" Sunny shouted over the sound of the shower. "That bitch uses her magic to fuck around with me, and I'm gonna get her!"

"Is this the same bitch who threw you into a pocket dimension to get your clothes ripped off last week?" Marigold asked dully, busying herself with an article entitled 'Ear Tufts: How can yours be the fluffiest of all?'

"Yeah, her," Sunny grumbled, barely audible over the rushing water. "That stupid bitch and her big stupid muzzle stripe. I'll get her for this, just you wait and see."

"You're going to blow it," Marigold commented.

"Bite me, Goldie!"

"Just saying, she's kicked your ass two-nil so far..."

"Yeah, well, she caught me unawares that time, but I'm gonna get her this time! She's gonna get the ass kicking of a lifetime and she's never gonna see it coming!"

"Sunny, she's almost definitely going to see it coming," Marigold said with a sigh. "Are you going to let me help with this, or are you going to be a stubborn little jerk?"

Sunny merely huffed in reply, stepping out of the shower and shivering a little in the cold. The little bat pony rummaged through Marigold's laundry basket, helping herself to the contents. She pulled one of Marigold's shirts on, chittering grumpily at how baggy it was on her. Marigold was a good bit taller and more busty than Sunny.

"Please, you're acting like I can't wreck that big fat bitch's ass all by myself!" she snorted, wriggling her way into a pair of panties.

"You can't..."

"Oh yeah?,I'll show you," Sunny snapped, squeezing into a pair of skinny jeans and stepping out of the bathroom. "She'll be all mine by the end of the night. You'll see! I'll wreck her right in front of the whole city and see how she likes it!"

"Wow, you sound passionate," Marigold commented. "You sure that there isn't more to this than just revenge?"

"What the hell are you talking about?"

"Oh, nothing! Just, you know, you seem pretty fixated on getting your own back on this pony...almost like you just wanna get in trouble again..."

"You don't know what the fuck you're talking about," Sunny growled, looking down at herself to make certain that her body writing was covered up. At least she was semi-decent. It would have to do.

"Your legs are clamped together," Marigold observed.

"Not listening! Revenge plans! Very important!" Sunny squeaked, hurrying to the front door and grabbing her ears to block out those baseless accusations.

"Oooh, it's true!"

"Nope, not true! Go fuck yourself! Leaving now!" Sunny yelped, rushing out of Marigold's apartment and slamming the door behind her.

"YOU OWE ME SOME NEW CLOTHES IF YOU LOSE THOSE!" Marigold shouted, as the hurried footsteps of her embarrassed batty sister died away.. With an amused little sigh, she checked her watch and took note of the time.

Let's see how long she lasts on her own.. she mused.

* * *

Sunny growled angrily when she arrived back in the marketplace, glancing around and finding no sign of Daybreak. In fact, save for a few snickering stallions and a cum-drenched pillory nearby, there was no evidence that that guard pony had ever been there. Obviously she’d made off with the money earned by Sunny’s ‘community service.’

“Hey, you!” she barked at a nearby pony, one of only a few who was still there at this late hour.

“Er...me?”

“Who the fuck else would I be talking to?” Sunny scoffed. “Did you see a big fat palomino run by here? Big hips, big ass, bright white muzzle stripe? Cackling and holding onto a big bag full of money?”

“Oh, you mean that guard pony? Yeah, I saw someone like her,” the stallion* replied with a nod. “She was giggling like crazy and had a huuuge bag full of bits. Dunno how she could’ve possibly gotten her hands on all of that money in such a short time. She must’ve been selling something damn good!”

He stopped and took a step back when he saw the look on Sunny’s face.

“She...she went that way…” he stammered, pointing off towards the guard barracks down towards the palace.

Sunny narrowed her eyes, twitching her ears and baring her batty fangs.

“Oh, she did, did she? Well, maybe it’s about time I gave her a taste of her own medicine,” Sunny muttered. “She’s gonna have one hell of a wake up call, heh heh heh…”

A moment of silence, and then…

“You know, everyone could hear you say that,” the stallion pointed out. “Just saying.”

“Oh, shut up.”

* * *

The next morning, Daybreak stepped out into the streets, letting out a squeaky little pony yawn as she stretched. She wore a pair of boots, combat pants and a white shirt that showed off more than a little of her bra outline. She hadn’t been able to find a shirt that was quite big enough for her chest.**

She always slipped out of the base early in the morning, ostensibly to go for an early morning run. However, since that run route always seemed to pass by the local Starbucks, Daybreak couldn’t avoid taking a quick peek inside now and then...and occasionally grabbing a pumpkin spice latte of her very own. Today was one of those days.

As she jogged down the street with her little plastic cup, her ears perked at the sound of cackling from a nearby alley. Caught between a sense of duty and her natural nosiness, Daybreak peeked around the corner to see what on earth was going on.

Sunny hung overhead from an old fire escape balcony, loading a crossbow up with a rather oversized bolt. Instead of a steel head, the projectile was tipped with a broad glass capsule full of a strange pink liquid.

“Stupid fucking muzzlehorse…” Sunny muttered, piling up her rather unusual potion-tipped bolts next to the large crossbow. “She thinks she’s /soooo/ smart...well, we’ll see how smart she is when I turn her into a begging little slut. One whiff of this stuff and she’ll be all mine…”

Daybreak drew back from the alleyway, slurping thoughtfully on her latte. Clearly that batty hadn’t learned her lesson last night, and Daybreak did have all the time she needed…

With a shrug, she stepped through the front door of the apartment building.

* * *

Sunny, working with considerable care, screwed another conical flask onto one of her crossbow bolt shafts, giggling wickedly to herself. She checked her watch, checking to make sure that she was still early for the wakeup call at the barracks. Sunny was understandably eager to make sure that she wasn’t late for when Daybreak would be doing her morning exercises...surrounded by so many stallions who’d also be breathing in that lust formula. It was too perfect! Revenge at last!

“Say, ma’am, do you have the time?” came a voice from behind her. By the sound of the newcomer’s voice, it was probably some old lady, not really a threat to the overall plan.

After all, it couldn’t be Daybreak putting on a rather convincing old lady voice! No way. That would just be silly!

“Yeah, it’s ten to six,” Sunny muttered absently, not looking around. “Nearly time for the guards to come out to play. All of the guards, heh heh heh…”

“Oh boy gee willikers, you’ve got a thing for one of the guards, have ya?” asked not-Daybreak, picking up one of the readied bolts as Sunny adjusted the sights on the crossbow.

“You could say that…”

“Well, I sure hope you catch their eye! So, what’s with the clever little contraption there?” the-pony-who-certainly-wasn’t-Daybreak asked, leaning against the doorframe behind Sunny.

“This stuff’s expensive, so don’t go fucking around with it,” Sunny growled. “It’s some alchemical shit I picked up from this mare down the road. You breathe it in or drink it and you get reeeeal horny reeeeeal fast.”

“Are you sure it works?”

“It’ll work. Trust me, ten minutes from now when that fat bitch is on her knees tearing her clothes off for the first stallion who looks her way, you and me will have front row seats to see it work…”

Not-Daybreak gave a huff, taking the lid off of her Starbucks cup and pouring the contents of the conical flask inside. She gave the whole concoction a stir and popped the lid back on, setting it down next to Sunny.

“Oh, well, I’m sure that whoever you’ve got it in for, she’s not fat, just curvy,” she said, not at all defensively. “Still, good luck with that! I’ll leave this coffee with you so that you’re awake for your big moment. Happy hunting, okay?”

“Yeah, yeah, get the hell out of here, would you? I don’t need some old cow talking my ear off when I’m trying to shoot,” Sunny scoffed. The slam of the door behind her told the little bat pony that whoever that old bint was, she was long gone. Sunny glanced down at the coffee cup, picking it up and taking a speculative sip.

Nice of her to leave the coffee, I guess. Hope it doesn’t make me too jittery to aim right… she thought to herself, downing the rest of the cup’s contents. It tasted like a pretty weak latte, but it was enough to keep her awake.

Sunny loaded up her weapon and slipped the last of the bolts into a quiver. She had enough to take that pony out and allow for a few misses, and that was all she needed. The bat pony dropped down from the fire escape balcony and peeked out into the street, searching around for the guards on their early-morning speed march through the city streets.

Still, it was a little difficult to look out for Daybreak with that rather weird feeling between her legs.

“What the…?” Sunny breathed, looking down at herself as her fur stood on end. She panted a little, lowering the crossbow and watching her small chest heaving as the most incredible heat overcame her. Sunny’s ears perked up and her wings flapped out, feeling a powerful pressure building up in her loins and a lightness in her head.

Wait...I didn’t touch the formula...what the fuck happened…? Sunny thought vaguely, sinking to her knees and panting more desperately. Her hands shook, and after a few moments of struggling to keep focus, her crossbow clattered to the ground, discarded. Sunny’s cheeks grew more pink as she clamped her hands between her thighs, cursing the denim of her jeans for getting in the way.

This has got to be her fault… Sunny thought to herself, as the button of her jeans slipped through her shaking fingers and she swore under her breath. She must’ve tricked me somehow...fuck...when I get my hands on her...I...I’ll...oh my god I can’t take this. Revenge later...gotta do something about this...fuck this fucking button…

“You look like you’re in a little trouble,” came a voice from behind Sunny. The bat pony looked around, spotting Daybreak leaning against the wall of the alley with an empty conical flask in hand.

“Oh no...not you…” Sunny gasped, eyes darting from the bottle in Daybreak’s hand to the mare’s face with a mix of malice and desperation. “Fuck off...this is all your fault…”

“Conspiracy to commit an assault on an officer?” Daybreak chuckled, tossing the flask away and pulling Sunny to her feet. “That’s a pretty serious crime, Sunny Bunny...nice tail, by the way…”

“Bi...bite me…” Sunny whispered, still feverishly trying to unbutton her jeans with her shaking hands, even with Daybreak blatantly watching. She could feel that burning in her crotch, that desperation to be filled up, fucked and brought to orgasm...and she didn’t care who did it.

“You know, you’re such a masochist that I wouldn’t be surprised if you got off to that,” Daybreak commented, horn flaring bright amber. Sunny’s wrists were caught in Daybreak’s magical clutches, drawn away from her needy little pussy and pulled behind her back. Daybreak stepped forward and pushed Sunny up against the wall.

“Do you want me to help you out, Sunny?” Daybreak whispered in her little tufted ear. “You want me to get those jeans off of you and fuck you until you collapse?”

“N...Y...yeeeees…” Sunny whined quietly.

“What kind of a plea was that? Let’s hear it, louder this time!”

“YES!”

“YES, WHAT?”

“YES, I WANT YOU TO FUCK ME! PLEEEEHEEHEEEEASE!” Sunny squealed, rubbing her thighs together and just about tearing up out of desperation. “Please, Miss Daybreak...my poor little batty pussy...I can’t get my jeans off all by myself…”

“See, that’s more like it!” Daybreak chuckled brightly, reaching down and unbuttoning Sunny’s jeans, tugging them down to her knees and examining her soaking wet panties. “My goodness, you poor thing. This wasn’t one of your better schemes, was it?”

“I...n...no, Miss Daybreak…”

“Still…” Daybreak continued, running a finger lightly over the material of her panties to send the tiniest little shock of sensation up Sunny’s pussy, “at least there are ways to make this work to our advantage, right?”

“Ye...yes...Miss Daybreak…” Sunny panted, “Please...please fuck me...pleeeeease...I’m so warm...I neeeed it…”

“You’re too loud, bitch,” Daybreak commented, looking down at Sunny sternly as her horn flared even more brightly.

Sunny yelped as Daybreak pulled at the bat pony’s panties with her magic, tugging at her soaked undergarments with every intention of ripping them off completely. Of course, this had the side effect of severely tightening the fabric against Sunny’s crotch, rubbing up against her clit and up between her pussy lips as Daybreak tugged. The little bat pony let out a shameless wail as she was inadvertently teased like this, not even caring who heard her at this point. Finally, with a rather cathartic riiiiip, Daybreak tore Sunny’s panties clean off, taking them in hand and wrapping them around her sub’s mouth and nose as a sort of improvised gag. Sunny was forced to breathe in the aroma of her own pussy juices, loaded with hormones as they were, which only pushed her even further into cum-drunk insanity.

“You’re so loud, slut,” Daybreak whispered, keeping Sunny up against the wall with one hand as the other crept down between the bat pony’s thighs. “If you don’t keep it down, everyone in Canterlot’s gonna hear you. You don’t want to add ‘disturbing the peace’ to your list of charges, do you?”

“Mmmph...n...nnmmm…” Sunny answered, looking up at Daybreak with the most tearful, pleading eyes she could muster.

The unicorn’s fingers slipped easily between Sunny’s legs and up between her pussy lips. With her jeans stuck halfway down her legs, Sunny couldn’t spread her legs as far as she’d like, but she had the most wonderful thigh gap that Daybreak was all too happy to exploit. The guard pony drew her hand back, running her fingers up between Sunny’s pussy lips and over her sensitive little clit. The bat pony’s writhing and whining told Daybreak that that was exactly the kind of attention that her sub craved.

“Are you sorry, Sunny?” she whispered, keeping her hand so tantalisingly close that Sunny could feel it hovering less than an inch from her pussy.

“Mm...yeeemmm!” Sunny squealed, nodding vigorously as she tried her hardest to lower herself down onto Daybreak’s fingers. She needed this, bad.

The guard pony kept away for just a moment more, before leaning in and nipping at Sunny’s shoulder blade, pressing her fingers up against her sub’s pussy in one smooth motion. Sunny gave a muffled sigh of relief as Daybreak got to work, rubbing her clit in little circles with her surprisingly nimble fingers. Sunny felt herself go weak in the knees again, toes curling as she forgot all of the dignity and attitude that she worked so hard to maintain in her day-to-day life. The alchemical concoction she’d drunk had somehow made all of that seem so much less important. Here, in this little alleyway, she was getting exactly what she wanted.

“Now, who’s a grateful little slut-bunny?” Daybreak whispered in Sunny’s ear, relinquishing her teasing to force her index and middle fingers deep into Sunny’s soaking, tight little pussy.

“M...mmmmm!” Sunny cried out, cheeks burning hotly as Daybreak bit down on her ear tip and gave it a gentle tug, fingers pumping into her dripping sex in a search for her g-spot. The meaning behind that muffled cry was easy enough to understand.***

Daybreak shifted the focus of her magic, letting go of Sunny’s wrists and instead turning her attention to her ero zones. She sent pulses of powerful amber magic directly through Sunny’s clit, giving the same overall effect as having a bullet vibrator strapped to her most sensitive spots. Sunny tensed up, squeezing her eyes tight shut and nodding furiously. Oooh, she liked that.

“Are you close, slut?” Daybreak whispered, jackhammering her fingers up into Sunny’s pussy with a lusty little growl. She paid close attention to Sunny’s body language, watching her tense up and twitch as she came closer and closer to her inevitable orgasm.

Sunny could say nothing, focussing on just trying to breathe as she was teased, played with and pinned by this pony. One temporarily forgotten part of her mind was screaming at her to punch Daybreak, but it went completely ignored. All that mattered was cumming, getting that incredible tension and overwhelming desire sated once and for all. She nodded briskly.

That’s when Daybreak did something incredibly cruel. Horn flaring again, she drew her fingers out of Sunny’s marehood and intensified her magic, pulsing it all the faster against her clit. Sunny tensed up, feeling all of that build-up come to a head. She drew in a deep breath, the taste and smell of her own mare juices helping to drive her over the edge…

And then, Daybreak stopped playing with her, at the exact moment that Sunny was pushed to an unavoidable orgasm. She let out a desperate cry as she rode out her climax. In spite of all of the playing that Daybreak had done, in that moment Sunny’s orgasm was ruined, denying her that moment of total satisfaction she craved. She squirted violently, soaking her own jeans and the ground between her feet, but as she came down from her climax and the effects of the potion, Sunny felt horribly empty and denied, realising too late that Daybreak wasn’t going to just let her cum that easily.

“N...nmmm….” she wheezed.

The guard pony seemed to understand, patting her on the back sympathetically.

“Sucks, doesn’t it?” Daybreak asks. “I bet that you didn’t get a wink of sleep last night, all to try and get your own back at me, and now you don’t even get an orgasm for your trouble.”

Sunny nodded. At the moment, it didn’t seem quite so important to tell her that she was nocturnal, and it’d be difficult with panties stuffed in her mouth, anyway.

“Sounds as if someone could use a little aftercare!” Daybreak whispered brightly, pulling Sunny away from the wall. The bat pony collapsed right into Daybreak’s arms, head pressed up against her chest. She was well and truly spent.

Oh no...not aftercare...no...it’s bad enough that I got humiliated like this, but...but aftercare means...hugs…

Sunny tried to struggle a little, but she was completely knackered from the long night of planning her revenge. All of her half-hearted wriggling was misinterpreted by Daybreak as Sunny trying to snuggle in closer, and the guard pony obliged, pulling her sub close to her chest and petting her behind the ears.

“Oh, you’re such a snuggly bat!” Daybreak crooned, squeezing Sunny a little tighter and smushing her face into her ample bosom.

I hate you so much...this isn’t over, bitch… Sunny thought to herself, her growling completely muffled at this point.

Still, there were worse places to be...

Author's Note

* Who is too unimportant to the plot to actually receive a name.

** At least, that was her excuse.

*** "Oh golly gosh, I do love being a batty little cock-wallet! I’m almost brain-dead enough to like Lipton tea!"