Quid Pro Quo

by Some Leech

Rating: mature
Tags: Bat Pony, Fetish, Comedy, Sex, Profanity, Anthro, Original Character, Porn, My Little Pony: Friendship is Magic
Length: 4290

What happens when you put two nerdy siblings in a house together? The answer MAY surprise you...

Pocarona and Selenite have the house for themselves, since their parents are gone for the weekend. Twins and recent high school graduates, they're both exceptionally tech savvy, even though a great many of their ideas are rather questionable. Having just finished work on his newest contraption, Pocarona is in need of a test subject; fortunately, his dear sister may just lend him a hand...

Kinks Include: Male on Female, Female on Male, Oral, Vaginal, Maid Outfits, Incest, Hypnosis, Loads of Batty-Foal Batter, and Alternate Means of Sibling Bonding

Artwork by Moonatik
Pocarona and Selenite belong to Moonatik

Go check out his stuff on Derpibooru!!! ( artist:moonatik )

Published 2019-12-04 21:20:01 UTC
Last updated 2019-12-04 21:20:01 UTC

Tit-For-Tat

Wiping the tip of his soldering iron, Pocarona set the tool on its stand. Standing up, pleased with the job well done, he wiped his brow. Glancing over at the clock, he sighed; it’d been over an hour since he started tinkering with his latest creation, but there was one final thing he still had to do.

Lifting the visor-like contraption, the fuchsia bat pony checked the wiring for the umpteenth time. His pupils contracted to razor thin slits, as his thumb hovered over the activation button. Ensuring the battery was properly seated, taking a deep breath, he turned it on.

A pair of small screens within the device winked to life. Text scrolled over the miniature displays, while the onboard diagnostics came online, before they came to a flat blue ready-state. Pumping his fist, grinning triumphantly, Pocarona carefully set the gizmo on the table.

He’d been fiddling with the headset for weeks, after fishing it from a bin outside the electronics shop down the street. It had been a virtual reality headset, though someone had thrown it away after a capacitor had blown in it. Fixing the shorted wiring and replacing the component had been relatively easy, returning it to a functional state, but that hadn’t been good enough - no, he had plans for the little apparatus.

Picking it back up, slipping it over his fluffy, oversized ears, Pocarona went to don his newest toy, yet he faltered. With his enthusiasm almost having gotten the better of him, he rubbed his chin. If it worked properly, and he prayed it did, he’d need someone to test it on. Given that his parents were gone for the weekend, and with his friends living across town, he was left with one option.

“Sis!” he shouted, turning towards the door of the family garage-turned-workshop. Waiting for a moment, listening for any signs of movement, he knit his brow. “Sis! Help, I’m having a seizure and dying! If you don’t - Ack!!!” he yelled, beating the table for dramatic effect.

“What?!” a voice hollered, from within the home proper.

“Dying! Burn my things and send my ashes to Luna!” Pocarona rebuked.

“If you’re not dying, I swear, I’ll fix that shortly,” the voice returned, drawing nearer.

Impatiently tapping his hoof, hearing a series of muted curses growing closer, Pocarona waited. In less than a minute, a mauve face appeared in the doorway. The mare’s amethyst eyes scanned the room, before settling upon him. She didn’t move, choosing instead to leer at him with disdain from afar.

“Thank goodness that horrible seizure ended so conveniently!” Pocarona exclaimed, theatrically wiping his brow. “But, since you’re here, would you mind volunteering for something?”

“Poca, I swear to Luna, I’m going to wring your scrawny neck,” she groaned, rolling her eyes and walking over to him.

Much like himself, Selenite was a bat pony. Slender, reclusive, and ‘charmingly’ pithy, she was five minutes younger than Pocarona. Being his only sibling, the two spent a good bit of time together, although it wasn’t always sunshine and rainbows. As brother and sister, it wasn’t uncommon for them to bicker and squabble, especially because they shared a great many interests. Solitary and nerdy, they often contentedly spent their time at home together instead of going out to socialize.

“So, since you’re neither dead nor dying, what do you want, Poca?” she asked, studying the workbench’s contents.

“Here, just put this on,” Poca began, moving to place his invention on his sister’s head.

Batting his hand away, Selenite took a step back. “No. Why? What is it?” she rebuked, squinting at him.

“It’s - uh - just a VR headset. I wanted to surprise you with it!” he hesitantly admitted, flashing her a fang filled smile. He doubted she’d buy it, but…

“If it’s a VR set, why don’t you try it on first…” she countered. Taking a second step backwards, she placed her hands on her hips.

“It’s just for calibration,” Poca grunted, shrugging his shoulders. “If you try it, I’ll let you have my portion of leftover pizza in the fridge,” he hastily added, laying a bit of bait as incentive.

Reaching out, snatching it from her brother’s grip, Sele inspected the device. Looking it over, noting the additional components which had been soldered or bolted into place, she glanced over at him. “If you promise to get me a mango smoothie, fine…”

“Fine, sure, I promise,” the stallion relented, giving her a defeated shrug.

Having committed his leftovers and a bit of his meager cash, he dearly hoped the damn thing would work as intended. It wasn’t like he had much money, having just graduated high school, so it was a bit of a gamble. Still, if it did function, it would be well worth the investment.

Nodding, sliding the contraption onto her head, Selenite flipped the visor over her eyes. “Alright, go ahead, but there better not be porn on this stupid…” she trailed off, as she gazed into the inbuilt displays.

Swirling patterns of colors and lights danced before her, accompanied by a curious humming noise, causing her to lose focus. The tension in her limbs bled away, her ears and wings twitched fitfully, and her mouth hung open. She wavered in place, as her knees buckled slightly, yet she remained standing.

“Sele?” Poca whispered, watching his sister’s jaw go slack. “Selenite?” he repeated, as her arms hung limply to her side.

“Yes?” she responded flatly, unmoving.

“What is your directive?” he asked, a fiendish smirk creeping over his face.

“To...serve…” Sele numbly stated.

“Duration?” Poca pressed.

“Level one, testing phase, thirty minutes…” she replied. Flipping the visor up, he examined her face. “Your orders?” she inquired, with a dream-like, glazed over look in her eyes.

“Yes! Heck yes!” the stallion whooped, grinning like an idiot.

He knew, as soon as he had found the abandoned contraption, that he would be able to test something he’d always dreamt of. For years, the notion of hypnosis had fascinated him, although he lacked the means to experiment with it. With few friends and woeful social skills, any sort of traditional mesmerism was impossible; though the piece of technology changed everything.

Virtual reality, when paired with very specific software, was a much more fitting option for him. With the careful administration of fluid patterns and auditory input, the brain could be tricked into a semi-conscious state, allowing others to heavily influence their actions. Given his penchant for technology and electrical engineering, it was the perfect fit.

With his twin sibling under his spell, and having roughly half an hour to test the effectiveness of his creation, Poca thought for a moment. He’d made a few plans, in the event that his experiment was successful, so he knew just what he was going to do. Walking past her, moving towards the exit, he waved her forward.

“Sele, please follow me,” he ordered. Peeking over his shoulder, ensuring Sele was behind him, he proceeded onward.

Through the house, up the stairs, Poca strolled towards his room. It didn’t take the two long to reach their destination; with the stallion ushering his sister inside. Walking in, shutting the door behind himself, he took stock of his surroundings.

His bedroom, as would be expected, was fairly unremarkable for a teenage bat stallion, with a few exceptions. Schematics and posters adorned the walls, including a rather questionable one of a mare in a painfully small bikini. Clothes were strewn about the floor, with a large heap sitting in the corner. It may have been a bit messy, but he knew exactly where everything was. Were it not for their parents’ occasional griping, he’d likely clean even less often than he already did.

“In there, on the floor, there’s a package. After you take off the headset, can you get that for me?” Poca chuckled, pointing towards the closet.

Seeing her move towards his wardrobe, once she’d set the visor on his dresser, he snatched his phone from the nightstand. With what he had in store for his sibling, he’d have to get some photographic evidence - if only to taunt or blackmail her later. Glancing up, noticing Sele had retrieved the small cardboard box, he cleared his throat.

“Open it and put the outfit on,” he instructed, making himself comfortable on the mattress. Shuffling backward, resting his back against the headboard, he moved his pillows aside - that was, until he looked up.

Some dozen paces away, Selenite stood, bare from the waist up, with her hands drifting to her waist. Utterly shocked, gazing upon her flat chest and indigo nipples, Poca couldn’t look away. He watched, like a deer in the headlights, as her skirt fell to the floor. It wasn’t until she turned, bent over, and began drawing her panties down her thighs that he found his voice.

“W...what the hay are you doing?” he blurted, ineffectually covering his face.

“I’m changing, as you instructed, master,” Sele murmured, undressing herself. Reaching into the box, pulling out a maid’s uniform, she started slipping the garment over her head.

“I didn’t say do it here!” Poca groused. Peeking between his fingers, he felt his cheeks redden.

The getup, a costume he’d bought after a Nightmare Night sale, had originally been meant for one of his friends, though it fit his sister almost perfectly. The black and white satin contrasted her light purple coat exceptionally well, as it settled on her svelte frame. Truth be told, she looked rather good in it - far better than he’d anticipated.

“Master?” Sele asked, snapping him from his reverie. “Are there not any undergarments?” she purred, grasping the hem of her skirt. With startling nonchalance, she lifted the article and exposed her nethers. Arching her back, she brazenly showed off her groin and dark, lower lips.

“I...I…” Poca sputtered, his eyes locked on his sister’s naughty bits.

Despite himself, his stallionhood stirred within his trousers. It was the first time he’d seen a marehood in person, regardless of the fact that Sele was his sister, so his body was quick to respond. Waving his hand, practically forcing himself to avert his gaze, he was finally able to look away.

“J...just tidy up a bit or something!” he squawked, discarding the phone.

Scrunching his snout, Poca peered at the floor in consternation. Clearly, he’d made a miscalculation, what with the glaring lack of underwear and the non-existent shame his sister exhibited. The easiest solution would be to have her put her panties back on, so that’s the option he decided to go with.

“Sele, I want you…” his words died in his throat, as he looked up at her.

Bent over, gathering up a number of dirty socks, her rear was angled directly at him. Beneath the relatively short fabric of her outfit, the twin globes of her rump were clearly visible. Askance, noting the barest glimpse of her sex, she glanced over her shoulder at him, stood, and casually walked over.

“What do you want, Master?” Sele inquired, stopping within arm’s reach. Clutching her hands to her bosom, awaiting patiently, she stared down at him.

“I...I want…” Poca gulped, keenly aware of his uncomfortable erection.

“Yes?” she softly pressed, unmoving.

“I’d - Cough - I’d like you to service me…” he croaked, trying and failing to sound authoritative.

“How shall I service you, Master?” Sele asked, cocking her head to the side.

“Oh for…” Poca groaned, drawing a palm over his face, “I meant sexually.”

Without a word, Selenite leaned in and placed a hand on his groin. Deftly stroking the tented fabric, her fingers wandered upward and undid the button. Slowly, methodically, she unzipped his fly of his jumpsuit, allowing his garnet colored length to leap free. Turning her head, locking eyes with him, she gingerly wrapped her digits around his shaft.

Her soft touch sent a shiver of pleasure up Poca’s spine, as she slowly began stroking his stallionhood. As a virile youth, he was very acquainted with getting himself off, although this was worlds apart. Soft and delicate, her hand was nothing like his own, leaving him to sigh contentedly.

Snatching up a pillow, jamming it behind his head, he closed his eyes. Simply knowing he was getting a hand job from his sister was disconcerting enough, but that didn’t mean he had to watch her doing it. Fantasizing about a buxom mare, he rested his arms to his sides and relaxed. Just as he was becoming comfortable with the sensation, it stopped.

Cracking one eye open, checking to see what was the matter, Poca went rigid - not due to what he saw, but because of the warm, moist feeling which enveloped his member. Bolting upright, stunned beyond belief, he was greeted by the sight of Sele’s lips firmly wrapped around the tip of his length.

Pushing her head forward, drawing him into her maw, his stallionhood disappeared into her snout. Caught off guard, his surprise was countered by the feeling of abject bliss her mouth afforded. A hand, his own or otherwise, paled in comparison to the divinity of her lips and tongue.

Subconsciously, Poca reached forward and caressed Sele’s orchid colored mane. She hummed around his tool, though her eyes never wavered from his. Sweet Luna, why was it so enchanting?! She was his twin sister, his own flesh and blood, yet there she was with his dick in her gob. Rubbing her ear, he subtly pushed her head downward.

A stifled gag escaped Sele, as the head of Poca’s dick prodded the back of her throat. Immediately removing his hand, allowing her to withdraw, he leaned towards her. Scandalous shenanigans aside, he’d rather not cause her any discomfort.

“Sorry about that,” he muttered, rubbing the back of his neck.

Shaking her head, Sele coughed lightly and pushed him backward. Silently, she rested one knee on the mattress, while drawing her hand up his torso. Swinging one leg over his waist, straddling him, she crawled up the bed towards his face. Bringing her waist above his, dragging her sex over his turgid shaft, his stallionhood sprang between her buns.

“Master,” she began, as her snout crept towards his, “please, allow me to continue servicing you…”

“I - Uh - alright,” he bleated, as the undeniable heat of her loins taunted his crotch.

Smiling, aligning herself with his cock, she rocked herself back. As he bumped against her entrance, Poca’s body acted on instinct. Thrusting upwards, burying the first inch or so of himself into her snug canal, the siblings gasped and went rigid. Frozen in place, their eyes rested upon one another.

Sele was the first to move. With her arms braced, she gradually started fucking herself on Poca. With each plunge, a bit more of his stallionhood sank into her confines, as she steadily screwed herself on him. As startling as her enthusiasm was, it was eclipsed by the uncontested bliss her brother was feeling.

Lying on his back, staring into his sister’s eyes, Poca’s face contorted in ecstasy. All of the pornos and dirty magazines he’d read had been true, it honestly felt like he was melting. Hot, tight, and astonishing, her silken interior was like heaven given flesh. Sure, it was slightly confusing that she’d thrust herself on him with such zeal, but he was hardly going to complain.

“Ma - Mmmm- aster,” Sele brokenly groaned, causing her brother to focus.

Placing a palm on his chest, she pushed herself up into a seated position. Kneeling over his waist, she brushed her mane aside and grabbed the top of her outfit. Lifting her arms, dragging it off her her slender torso, she tossed the costume aside. As if the new position wasn’t extraordinarily arousing, she bore an absolutely sinful expression.

“Enjoying the view?” Sele purred. Running her fingers down her neck, between her breasts, and to her groin, she started bouncing on his member.

Bowing her back, steadying herself on one arm, she reclined and massaged her clit. With an unimpeded shot of the action, Poca watched his length rhythmically appear and disappear from her depths. It was, without a doubt…

“The hottest thing I’ve ever seen…” he reverently whispered.

Shakily, Poca reached out and grabbed her hips. She’d been doing almost all the work, since they began, so he felt inclined to reciprocate. Bucking upward, earning a moan from his sister, he began thrusting into her. Fortunately, it only took him a handful of seconds to get their movements synchronized.

The air was filled with the sound of heavy breaths and their bodies colliding. The rhythmic Plap Plap Plap of flesh upon flesh, while captivating, was a bit disconcerting to Poca. True, he was but a carnal neophyte, but every dirty video he’d ever seen included symphony of bestial noises and lusty admissions.

“T...talk dirty!” Poca insisted, latching to the notion.

“Oh Luna, YES!” Sele cried out, fucking herself on her brother with reckless abandon. Draping herself over his chest, ceaselessly meeting his pounding waist, she dragged her tongue up his neck and to his jaw. “Poca, you feel amazing,” she mewled, biting his ear.

“O...oh jeez…” the stallion sheepishly stammered.

Her ardent admission, paired with her surprisingly vigorous fucking, caused his movements to falter. Something may have gone wrong with his experiment, considering she’d grown increasingly forceful and energetic as their time went on. Sadly, any attempts at determining what the problem was were stymied, when she sunk her fingers into his mane.

“Ow! Hey wha - Mmmmph!” Poca’s protest was cut off, when Sele pressed her muzzle against his.

Her tongue wormed past his lips, into his mouth, and began lashing about. Dumbfounded by the passionate assault, he didn’t feel Sele’s free hand sneaking under his back - until it was too late. Holding him tightly, she threw all of her weight to the side and rolled him on top of herself. Now in some approximation of a missionary position, she locked her legs around his waist - but she wasn’t done yet.

Grabbing his collar, pushing him away, Sele glared up at her brother. Knitting her brow, she stared daggers at her twin and flexed her legs - drawing him deeper into her cunt. Poca had no doubt, something had gone horribly awry.

“Fuck me, you stud!” she demanded. Releasing his shirt, pulling a pillow under her head, she began gently twisting and tweaking one nipple.

Steeling his resolve, shuffling into position, Poca started rutting her in earnest. Thankfully, she loosened her legs slightly, giving him a bit more freedom for movement. Seeing the salacious look on her face, while he pistoned into her, sparked an odd determination on him. Now that he was on top, in spite of his sister’s strange domineering act, he felt in control.

Grabbing her below the knee, with one hand, he quickly unbuttoned the front of his jumpsuit; with the garment hanging open over his chest, he hauled her leg upward. Casting her head to the side, moaning loudly, Sele’s eyes fluttered. Her wings, pinned to her back, twitched and shuddered. Apparently, some part of her approved of the rough treatment.

“Yeah...Y...Yeah! You like that don’t you, you - Umm - dirty slut!” Poca boldly declared, attempting to sound assertive.

“Yes! Fuck me harder, you nerdy bastard!” she howled, gyrating her hips.

Emboldened by the situation, spurred by just how astounding her marehood was, Poca’s thrusting turned up a notch. Plowing her like a field in spring, his plump, furry nuts slapped against her backside. Honestly, he couldn’t decide where to look.

Selenite’s face was twisted in rapture, her vice-like snatch clung to his shaft on the backstrokes, and she’d begun rubbing her clit again. Hypnotic suggestion or not, he couldn’t have fathomed his sister was capable of such an obscene display. Between the debaucherous show, the heavenly sensations of her sex, and the taboo act itself, he found himself roaring towards release.

“Oh I - Mmmmph - oh fuck, I - Nnngh - I don’t think I can...” Poca disjointedly fumbled over his words, as the telltale signs of a climax hit him.

“C...Cum inside me!” Sele screamed.

Her chest heaved, while her fingers savagely toyed with her nipple and clit. Raising her waist, bucking up into him, her thighs trembled furiously. She was about to pop, judging from what Poca had seen and read of mares, so he felt compelled to oblige her - at least, that’s what he told himself. The truth of the matter was, like it or not, he lacked the willpower to stop.

Poca came to an abrupt halt, as he was rutting her like a colt on prom night, when he hilted himself. Cramming every vascular inch of his tool within her, he was rocked by the most intoxicating pleasure he’d ever known. Grunting wildly, gritting his teeth, the first shots of cum surged through his shaft.

As the sublime heat of her brother’s seed crashed against her cervix, Sele came. Screaming to the moon, writhing on his glorious cock, she convulsed. Acting of its own accord, her cunt clamped around his member, trapping what it could, but to no avail. Nectar and seed gushed from her marehood, escaping from around Poca’s flare.

With their bodies entwined, the duo rode out their orgasmic bliss. Poca, still situated above his sister, leaned forward and pressed himself against her chest. Her hand glided over his back to sweetly caress his wings and shoulders. Breathing heavily, with the post-coitus euphoria settling over them, they shared the embrace, though it was short lived.

“I...I wish’d we’d done that sooner,” Sele croaked, rubbing her face against her sibling’s collar. Nuzzling him, she tenderly stroked his cheek and mane.

“Yeah, that was - What?” Poca yelped, her admission kicking his higher functions into overdrive. If she could talk, she could think; if she could think, then she wasn’t really hypnotized. Grabbing her shoulders, pushing himself up slightly, he stared at her in a panic. “You were conscious?”

Sele shrugged and rolled her eyes. “Are you that surprised?”

“Yes, you’re darn right am!” he frantically replied, holding his hands to his face. “Oh sweet Luna, what have I done?!”

“Calm down, you only made a few minor miscalculations,” Sele grumbled. Shoving him to the side, causing his softening stallionhood to escape from her, she rolled to the side of the bed..

Crawling over, swinging her legs over the side of the bed, she got to her feet. A small stream of spunk flowed from her snatch, trailing down her leg, as she briskly walked over to the dresser. She only stopped when she had the headset in her hand, holding it aloft and pointing at the control box.

“For starters, the delta and theta binaural accousics weren’t synchronized properly. Secondly, and this is a hunch, I think the video feed has a delay; I might be wrong, but the framerate should be higher. Lastly…” her explanation ground to a halt, as her brother waved frantically at her.

“Wait wait wait wait wait,” Poca stammered, pushing himself up. “So you’re not mad that I asked you to…” he tailed off, pointing to his cum slick package.

“Ok, maybe you are dumber than I thought,” Sele muttered, snatching up a set of modeling tools from his desk. “I’m going to go out on a limb and guess most of what you watched was porn…”

“I…” he began, shifting uncomfortably in place. “Yeah…”

“So, first thing, hypnosis only acts as a sort of suggestion,” she explained, deftly popping open the access panel of the headset. “So, basically, you can’t force someone to do something they don’t want to do.”

“So you wanted to do the do with me?” Poca asked, taken aback. She paused briefly, shooting him a wink, before carefully inserting a pair of needle nose pliers into the contraption. “T...then why didn’t you tell me beforehand?!?”

“Because, you dweeb, it was the perfect setup. I let you ‘hypnotize’ me, we do the nasty and both get some relief. Even if we did get caught, I have plenty of plausible deniability, considering you made me do it,” she teased, intently fiddling with the gizmo’s innards.

“You cheeky devil,” Poca chuckled, strolling over to her. “You get what you want without any risk attached. Why didn’t I think of that?”

“Well, probably because I’m smarter than you. Heck, I would’ve gotten this done right in the first place,” Sele smugly tutted, retracting the tools.

Closing the compartment of the headset, dusting it off, she gave it a second examination. Holding it in one hand, she turned to her brother and patted his shoulder. Buck naked, leaking cum, and just a bit sore, Sele smiled up at him, while she brought the device over his head.

His body flooded with dopamine, confused by the bizarre turn of events, Poca didn’t notice what his sister was doing until it was too late. The hard plastic casing slipped over his eyes, filling his vision with a mass of swirling, undulating colors and shapes. A strange, otherworldly humming filled his ears. Opening his mouth, feeling his muscles going slack, his mind went blank.

Giving him a moment, seeing his body relax, Selenite flipped the visor up. “Directive?”

“To serve…” Poca evenly stated, gazing into nothingness.

“Tit-for-tat...Balanced, as all things should be…” Sele said to herself, grinning broadly. Picking up the discarded maid outfit, as she skipped over to the bed, she tossed it to him. “Strip down and put that on,” she continued, cocking one leg up. Drawing her fingers over her sex, feeling the warm, sticky spunk coat her digits, she spread herself open. “Then come over here and clean your mess…”