"Shit, Big Mac! Your cock is the hardest thing I've ever ridden since I fucked Grand Pear back in the day!" grunted Applejack, grinding her hips rhythmically and riding on top of her brother's long stallion penis.
When it came to sex, Big Mac could pleasure her like nopony's business. In return, she gave him the best ridings he'd ever had in his life. She knew just what made him buck, what made his legs quiver, how tight he liked the vagina on his cock, everything. Applejack was more than happy to provide because more than just siblings having sex, they were lovers. They loved each other as siblings, but also as partners, ponies who saw something special in each other.
Right now, the special thing in Applejack was the thick stallion cock inside her. She moaned as it went in deep, then sighed as it slid out, brushing her clitoris on its way. Big Mac's girth allowed him to stimulate every part of Applejack's pussy all at once, so much that by the end of their sessions, Applejack was usually a screaming mess. She could tell today was going to be one of those times, and not only for her. Big Mac's big old pecker had been squeezing, spasming, twitching inside her for a while now, his stamina being just another thing Applejack loved about him. And his loads, oh his loads. When he busted a nut, his semen would always fill Applejack all the way to her womb, or at least it felt like it. It was warm, wet, and sticky, and it just felt so right inside her.
Applejack wanted it all again: Big Mac's moans, his little cries as he got closer to the edge, and then shout of pleasure when he came. "Let's get this rodeo started, eh Big Mac?" she said. With that, she took control and bounced up and down on that cock like it was a rodeo and she was riding a horse. The red stallion's breath hitched in surprise at the sudden increase in stimulation and he took a deep breath, trying to control himself. However, Applejack was relentless. She attacked that swollen purple dick for all she was worth, rolling down his foreskin so she could wrap her wet folds all the way around that mushroom head that drove both of them crazy. She could feel her wetness increasing and knew she wasn't far from that sweet, sweet release. "How ya doing there, Mac? This hoedown's coming to a climax, if ya know what I mean!" Applejack said through gritted teeth. Three, two, one...
"OH BIG MAC, I THINK I'M GONNA FUCKING CUM!!!" Applejack screamed to the heavens, throwing herself on the dick for all she was worth. Her pussy convulsed and her vision turned white for a moment as her orgasm washed over her, pulsing, throbbing. Her brother bucked underneath her, his moans becoming more and more frequent as his orgasm approached as well. There was a twitch inside her, and Big Mac grabbed her flank and pulled her onto his cock as deep as he could go.
"Applejack, I'M... I'M CUMMING TOO AHHHH!" Big Mac let out a primal scream as his orgasm rocked his world, his cock exploding in a mess of white inside Applejack's wet pussy. His penis contracted so hard that he felt his urethra might never open again. It was one of the most intense orgasms he'd ever had. And then it was done, his sensitive penis still inside his sister who was panting heavily at his side. They looked at each other and exchanged a sloppy kiss before laying down on their sides, exhausted.
"That was somethin' else," said Applejack, wiping her brow.
"Eeeyup," agreed Big Mac, gasping as he pulled his penis slowly out of Applejack's pussy. The refractory period was something even the strongest stallion couldn't conquer.
There was a silence in the air for a moment as both siblings considered what they wanted to say, but in the end, both of them knew exactly what they wanted. "Say uh, big Mac?" Applejack said.
The stallion turned his head questioningly. "Eeeyup?"
"Ah don't know how to tell ya this, but I feel like we're kinda losin' Apple Bloom here. Ah mean, don't ya think she deserves to be part of this?" she continued, rubbing the back of her neck. To her surprise, she saw her older brother's eyes light up as she spoke.
"Eeeyup! She's kinda growin' away from us," he agreed. "Should we... you know?"
Applejack gave him a lopsided smile. "Say no more, Big Mac. Ah got a plan."
"Applejack, Big Mac? What're we doin' here?" Apple Bloom asked as they entered the dark barn. They'd said something about a check up, but she didn't know what it was about.
"Don't worry, Sugarcube. We all had ta go through this when we got to your age to make sure you were fit enough for apple buckin'," said Applejack. Oh, you'll be buckin' all right... "It's just a physical exam." Applejack pointed to a chair backed against the wall and nodded for her to sit.
"Oh, all right. I can't wait to get back out there!" Apple Bloom said excitedly as she took a seat. Before she could react, Applejack and Big Mac had reached out and strapped her hooves to the wall, leaving her legs and stomach wide open. "Um, guys? Did ya really need to do that?" She laughed. "Ah wasn't goin' anywhere," she pointed out.
Big Mac gave her a reassuring smile. "Eeeyup," he said as Applejack took over again.
"You'll be fine, Apple Bloom. Now, let's get started," said Applejack as she brought herself closer to her sister, running her own hoof over hers gently. "You're gettin' to a special age, darlin'. We just want to test a few things."
Apple Bloom nodded. "Ah got nothin' to hide," she said proudly, raising her chin.
"Ah'm glad to hear," said Applejack. "So how much ya know about yer marehood?" Applejack's hoof trailed from her sister's neck down to her stomach, lingering for a moment before travelling back up.
"Mah what?" Apple Bloom said in confusion. The two older Apple siblings exchanged a knowing glance.
"Yer marehood," Applejack repeated, this time drawing her hoof all the way down to Apple Bloom's little slit. She liked the way the filly shivered under her touch. "It's this lil' thing right down here." Applejack drew a hoof over her sister's entrance. She wasn't wet yet. That'll change real soon.
Apple Bloom yelped at the shock between her legs. "A-Applejack, what was that!?" she exclaimed. The sensation was... electric, strange, and yet not unpleasant. "Why am ah gettin' wet down there?"
Applejack could barely keep herself from ravishing her innocent sister right then and there. "That's 'cause ya love us," Applejack said, placing a gentle kiss on her sister's lips. "It happens to Big Mac an' me too." Applejack turned around and spread her pussy, showing her glistening wetness. On her cue Big Mac, who had been silent for the majority of the time, stepped forward and dropped his pants, revealing at least a ten inch purple thick stallion cock that swung around heavily in the air. "Do ya love us, Sugarcube?" Applejack whispered. "Do ya trust us?"
Apple Bloom was confused about what was going on, but she did love her siblings. "Of course I do," she half moaned back as Applejack slid a hoof across her sister's wetness, and Big Mac rubbed his cock along her stomach. Applejack looked over at Big Mac once more, who nodded back at her. They were ready.
"Let's go to a sweeter place," murmured Applejack as she bent down and lowered her lips to Apple Bloom's tight little pussy. She had this entire encounter planned out with Big Mac, and it was finally coming true. Big Mac took his position behind Applejack and began sliding his cock into her freshly wet vagina, squelching slightly as it entered her holds. Applejack let out a moan, and so did Apple Bloom as her sister's breath tickled her down there. "Just trust us," said Applejack, looking her sister deep in the eyes. She felt reassured as Apple Bloom nodded back with a smile.
And then they began. Applejack licked the outside of Apple Bloom's marehood slowly, drawing confused gasps of wonder and pleasure as Big Mac did her from the back, his familiar stallion cock slipping easily in and out of her now. Apple Bloom cried out as Applejack brushed her clitoris, but the older sister knew what she was doing. The clit was a female privilege, and she was going to make Apple Bloom see just how special she was. In the meantime, Big Mac continued pounding Applejack from the back, moaning to no one in particular as the semen traveled up his dick and he felt himself fill up, almost ready to burst.
Apple bloom was gasping and moaning, her eyes closed as the pleasure overwhelmed her. "Ah f-feel kinda funny down there, sis!" she exclaimed between breaths as Applejack continued to go down on her.
"A-Ah know, don't worry! I'm close too, and I know Big Mac ain't too far behind us!" Applejack said as her pussy convulsed, feeling her brother throbbing inside of her.
"Eeeyup!" shouted Big Mac, his penis head as red as the colour of his flank now.
"Where are we goin'? Wait, S-something's coming! Ah, ah, AHHHHHH!" Apple Bloom let out an otherwordly cry as Applejack guided her through her first orgasm, sucking on her clit as the filly bucked in her bonds, her tiny pussy spraying clear fluids all over her sister's face and on the floor as her pussy contracted over and over for what seemed like an eternity. The last thing she remembered was her vision fading as darkness washed over her.
At the same time, Applejack and Big Mac also came. "OH SHIT, BIG MAC! I'M..."
"CUMMING!!!" the two siblings cried out in unison, their ejaculation fluids mixing as they squirted and ejaculated respectively, their screams of pleasure echoing so loud that even Celestia heard them from Canterlot. They collasped in a sweaty and sticky heap, coated in their own sexual fluids.
from that day on, the Apple siblings had sex with each other everyday, sometimes even Granny Smith joining in on the fun
Author's Note
hi everypony, i wrote this reelly quicky because i didnt want to forget the idea!!! i have tons of homework but i hope you enjoy as always. have a beautiful day everypony 
