Bad Science-Control Group

Rainbow rose from the pile of sated bodies, stretching like a cat before gliding the short distance to the ground. The sun was midway through the sky, and Rainbow was very hungry. A side effect of the Artifact seemed to be ponies doing anything to earn her favor, she mused as she sat on a bench at the park, eating a burger and hay fries that had been given to her.

She glanced at the sun, thinking of a different kind, emblazoned on the most sought after flanks in Equestria. She mulled htis over-how to get to Celestia's hot booty? She finished her meal, deciding the path was obvious-she'd had Twilight, now she'd go for Cadance and Flurry, then Luna...and once she'd had all the alicorns aside from one...she'd go to Celestia. She nodded, pleased with that.

She leapt into the air, soaring to the Friendship Castle. She'd need a bit of back up at first, and why not? Orgies were hot as fuck. She slid into the castle on her hooves, enjoying the easy slide over the crystal floor. She strutted into the map room, where all her friends currently were. They were all happily comparing foal bumps. Twilight was currently in the lead, apparently with at least five foals.

"-wasn't sure if I'd have an alicorn like Cadance or not, but having a lot of foals in early life can be normal for alicorns, I asked Celestia about it. She sends congratulations to us all, by the way! I didn't tell her who the sire was though," Twilight giggled, "I figured we'd pull a prank on her for once."

Rainbow sat in her throne, "I think that's brilliant, Twi-in fact...why don't we prank ALL of the royals?" she suggested slyly. "Cadance is still looking to have an orgy, isn't she? Why don't we surprise her with one at the Crystal Palace?"

Twilight clapped her hooves, "That's a great idea, Rainbow! A prank, but also something she wants! No one will see it coming!" the girls all agreed, all of them so deep under the Artifacts influence they'd do anything Rainbow asked if she said it would get her off.

Twilight wrote a letter to Cadance, and soon, the plan was in motion-Twilight and the girls would visit them under the guise of seeing her family since she was pregnant. The girls coming along to, of course, give her support-just not the kind the Crystal Royals would expect.

The train pulled up to the station, Rainbow and her sluts happily getting off and heading right for the castle. Gleefully, Rainbow rubbed her hooves-the Royals wouldn't greet them right off, they had some things to attend to. Perfect, giving them all time to get to the Royals bedroom, and surprise them with an orgy!

Cadance and Shining Armor headed to their room, the girls having said they'd met them there. The pair just assumed they wanted somewhere private to talk, after all, rumors about Twilight being pregnant had reached even their kingdom. The pair bickered playfully over whether she was, and who the possible father might be. They opened the door, and stopped as if they'd hit a wall the shock was so intense.

The girls were all on the bed, engaged in a massive orgy. Rainbow had been soaking the air in her new sexual magic while doing so, the royals had no idea they were hers as soon as they walked in. It didn't help the air was also saturated with the smell of excited pregnant pony pussy.

All around the room, acts of lesbian sex happened. Applejack was hogtied, Rarity sitting on the floor in front of her so the workhorse could work her tongue in Rarity's drenched marehood. Fluttershy and Pinkie rubbed theirs together, Fluttershy making cute noises when their clits flicked together. Twilight was kneeling before Rainbow, worshiping the magicock with her mouth, sitting at an angle so her heavy belly was showing. Shining's cock reacted, sliding free of it's sheath, Cadance holding her hind legs together as excitement drooled down them. Rainbow smirked-this would be easy.

"Heya, guys! Just in time, come help spread the love!" she encouraged them, only a very faint part of Shining-remembering how Chrysalis' control felt-screamed something was wrong, but the magic and hormones increasing in his mind drowned it out entirely.

Cadance happily trotted over to Twilight, lifting the younger's haunches to get at her pregnant, slippery slit. Cadance's tail was flagged so high it rested on her back, pussy soaked in her own excitement. Shining looked around, trying to decide where to jump in. Pinkie waved him over excitedly, and when he trotted to her she bowled him over on his back, grinding on his chest while Fluttershy nosed his sheath, "Um...is it okay if I taste you, prince?"

He grinned over Pinkie's shoulder, nodding, and Fluttershy began to lap at his exposed cock. Meanwhile, Shining yanked Pinkie's plot over his face, tongue immediately deep in her snatch. She rolled her hips, front hooves balancing herself on his head. Shining was surprised how well Fluttershy was doing-by the looks of it she'd had her experience in friendship orgies. She deepthroated his admittedly impressive member easily, slurping and sucking enthusiastically.

Rainbow moved away from Twilight's front, allowing her to rest her upper half on the ground while her sister in law tongue bathed each and every inch of Twilight's cunt she could reach. Rainbow moved behind the crystal princess, touching a hoof to the soaked pink petals. "Damn, princess...you've got a hot little cunny, don'tcha?"

"I am the princess of love...in all its forms," Cadance smirked over her shoulder at the pegasus, taking a few moments away from her enthusiastic eating out. Twilight whined, rolling her pregnant hips, and Cadance got back to business, feeling up her sister in law's pregnant, milky teats. She leaned down enough to get a taste of that nerdy breast milk, before flicking her tail over her back, giving Rainbow a smouldering look.

Rainbow grinned-she'd seen that look enough to know what was wanted. She mounted the princess, who moaned at the touch. Rainbow's cock prodded at Cadance's flower, pressing in and opening its petals. "O-oh! S...slow! That...that's the thickest cock I've ever had!" she squealed, shivering in lustful delight.

Rainbow slid in, slowly, but without pause, filling the princess with her long cock. The dildo in her own pussy throbbed thickly, gaining even more power from the slow breaking of yet another alicorn. She moved back and forth, slowly, relishing the feeling of the clutching cunt.

Cadance whined, moving her hips back onto the corrupting cock, and Rainbow let her-the more Cadance did on her own, the easier it was to mold her mind, to convince her eventually bear a foal. Rainbow rested her front hooves between's Cadances wing boners, gently rubbing the tender, sensitive flesh. They shivered, feathers wiggling at the ends. Rainbow leaned down, running them through her teeth, grooming throughly as they fucked-but the gentleness, the thoroughness was far more akin to making love.

Twilight moved away so Cadance could focus on cock, strolling over to her brother, still tongue deep in pink pussy. She approached Fluttershy, gently nudging her. "I'm really sorry, Fluttershy, but can I have that cock please?"

"Oh, of course Twilight! Family should always get first dibs," she nodded, after letting the cock pop out of her mouth audibly.

"If you can lay in front of me, I'd also really like to taste that pregnant puss?"

"Oh, yes please!" Fluttershy lay on her back, legs spread wide, unable to see over her swollen pregnant tum. She rested her forelegs on her that same tum, smiling at the feel of it.

Twilight used her magic to prop her brother's cock up, stroking it to keep it hard as she did so-he was too immersed in Pinkie's pie to have heard their conversation about switching around. She giggled, enjoying the first prank they were to pull. She settled her fat cunt against the incestuous shaft, twitching her hips so she drooled down his shaft, soaking him to the balls in her own cunt sap.

She pressed against it until the head popped inside, moaning, sitting down, excitedly sliding all the way to the sheath. Shining let out a confused, if horny, mumble at the sound of his sister sighing in pleasure as a pussy slid down him. Pinkie just giggled as she remained on his face.

Twilight moved her hips, grinding, not moving up and down. She squeezed her cunt muscles, her brother's hips flexing upwards. Her wings shot out in a wing boner, and she put her weight on her forelegs so she could both smack hips with Shining and give Fluttershy a good licking. Her tongue traced her gentle friend's folds, humming pleasantly at the taste of motherly Fluttercunt.

She timed her thrusts on Shining's cock, so when she lifted her hips she pressed into Fluttershy's pussy, like some sort of erotic seesaw. Shining managed to get Pinkie off his face to see who was working his cock. "...Twily...? What are you..." His eyes were already glossed over with pink, deep in the thrall of the Artifact's power and pleasure. He didn't push her off, rather gripping her already widening hips and helping her bounce on his cock.

Cadance watched, interested, her cunt gripping and rippling randomly as it turned her on. Rainbow leaned over her, even the High Slut of Fuck susceptible to her new affects. "Looks nice, doesn't it? Shining stuffing his sister with that tasty cock...shame she's already pregnant. I wonder if he'd like the next go?"

Cadance came with a lustful wail, the mere thought of an incestuous breeding between her husband and his sister sending her into spasms of pleasure and desire. She exploded around the marecock stuffing her, soaking Rainbow and a good portion of the floor. Like her husband, her eyes coloured pink as her mind gave in entirely to the pleasure. Rainbow grinned, grinding into the alicunt. "What about you, princess...? Do you want a hot lil cuck baby in that hot lil womb?"

Cadance whimpered, writhing under her. "Yes! Oh, fuck, yes, I do! Please, fuel up my foal factory! Keep me pregnant! A raging slut like me needs to be kept with child, nothing's hotter than being bred!"

Rainbow couldn't help but agree-a raging slut always needed a firm hoof and a thick cock. She hooked her forelimbs around Cadance's waist, hips a blur as she made use of her speed. "Keep looking at them, Cadance-I like that you're all slippery for incest. It's gonna make it so much more satisfying to plant a baby in you, knowing one day you'll want me to make more with this one-!"

She grunted, the Artifact in her rewarding her massive cumshot with an advanced orgasm. She shuddered, pussy clenching randomly, sending bolts of pleasure through her. Cadance rolled her hips, milking each and every drop of cum out of the cock and into her hungry, cum sucking womb. Rainbow dismounted, rolling off and nearly falling. She sprawled on the floor, panting and grinning happily. She was brimming with power now-she was absolutely confidant she could take the Regal Sisters. In more ways than one, of course.

She was distracted by Twilight's howl of pleasure, creaming her brother's cock. She slammed down to the hilt, holding herself there, feeling his flare throb fat globs of cum right against her sealed cervix. Fluttershy was laying near comatose in a puddle of her own fluids, a hind leg trembling. Rainbow shook her head, smiling-but the thought that soon the whole world would be as Fluttershy was...

Pregnant. Horny and satisfied in measures. Worshipping her cock, her herd, as it grew...she grinned wider, the grin almost demonic. Well...that'd be cool as hell, wouldn't it?