Big Mac's Rainbow Party

It started when Applejack was about eight. She and Macintosh had been playing all day, and she suggested they play “doctor.” It was a fairly normal request for a girl her age, she was merely curious about boy’s bodies. AJ was impressed with what she saw; even as a preteen, Macintosh was well-built. She thought the floppy thing between his legs was pretty funny. The way it wiggled in her hands, flopped around as she poked at it. Then it was Macintosh’s turn to be the doctor.

“What seems to be the problem, Miss Applejack?”

“My tummy hurts doctor.”

“Well, take your shirt off, let me take a look at it.”

She pulled her t-shirt off and discarded it in a corner. Macintosh was unimpressed with the sight; AJ’s breasts had obviously not started to grow at this point, and she looked the same as a boy without her shirt on. He played along all the same, pretending to run a stethoscope over her stomach to listen for anything strange. He moved his hand higher up her chest, brushing past her small nipples. He noticed that the contact had made them perk up somewhat.

He then asked her to take off her pants, to better examine her stomach problems obviously, and had been more than a little confused at what he saw. Or rather, didn’t see. There was nothing there! Just a little fold between her legs! He touched the fold out of curiosity, and his sister gave a sudden squeak. She turned bright red, gathered up her clothes, and ran off without a word. Mac just inwardly shrugged, and went off to play in town.

A week later, AJ came to find Mac in his room at night. He put down the comic he had been reading to see his sister bashfully pulling up her skirt, showing off her panties. There was a wet patch in the front. “I… I feel funny, doctor.” That’s how it began.

Over the next few years, the siblings moved past playing doctor. They began to touch each other, knowing it was wrong but liking it too much to stop. They would hide in the hay loft of the barn, the southern apple fields where nopony came, even their rooms if they were home alone. Mac would mostly finger his sister and kiss her small nipples, but soon AJ was playing with Mac as well. She handled his penis inexpertly, pulling on it too hard or letting it slip through her fingers, but to the young boy, it was the best thing he had ever felt.

One day when she was eleven, Applejack stumbled across a pornographic magazine while walking home from school. She was walking behind a man she didn’t recognize when he stumbled over a rock in the path. He dropped something from his bag, but didn’t notice as he continued on. AJ rushed to the dropped object to give it back to him, but she stopped when she saw the cover. It featured a nude woman, with a man’s penis in her mouth. She quickly glanced around to make sure nopony saw her, and stuffed it in her backpack.

She didn’t even bother heading home before perusing her new treasure, and instead made a beeline for her treehouse, hurrying up the weathered planks that served as stairs and slamming the door shut behind her. She poked her head out of the windows and glanced around for signs of life, but nopony seemed to be tending the fields at the moment. She closed the shutters and pulled the magazine from her bag. Her heart leapt into her throat as she turned to the first page. It featured a rather large-breasted adult holding a penis in either hand.

Page after page featured previously unseen wonders for young Applejack. Some pages frightened her, like the one where the woman had a man’s penis inside of her… butt. The pages that fascinated her were the ones that featured oral sex. Girls sucking on penises, boys licking girls down there, she couldn’t stop thinking about it. It made her feel that tingling feeling in her panties. She unbuttoned her jeans and slipped her fingers under the waistband of her panties, burying her fingers in the moist tightness within. She stayed like that for hours until Macintosh came looking for her. She showed him the magazine, and told him to take his pants off.

“So we messed around with each other for a few years. He would finger me or lick me and I would suck him off. But we stopped when I turned 16 and got my first boyfriend.” Applejack finished her story with a shrug, as if to say ‘it’s no big deal.’

The girls were taken completely aback. Nopony knew how to react. Applejack had just admitted to years of incest, and she didn’t even seem embarrassed!

“Oh. Em. GEE!” Pinkie was sitting at attention on her bed, eyes wide and smiling mouth agape. “You banged your BROTHER, AJ?”

“What? No! Of course not! We only went to oral!”

Pinkie’s face fell and she flopped backwards onto the mattress. “That’s lame.”

“B-b-but… you…” Dash was trying to form a cohesive thought while she looked up at her girlfriend in complete shock.

“Don’t worry, sugarcube.” Applejack leaned down and gripped Dash’s chin in her hand. “I only have eyes for you now.” She gave her a small kiss on the lips.

“That’s… so gross,” Trixie muttered to Twilight. “I mean, that’s gross, right?”

“I uh…” Twilight didn’t know how to respond. On one hand, the thought of doing those sorts of things with her own older brother was… unthinkable. But on the other hand, Applejack had confessed it so easily Twilight was almost embarrassed to react negatively.

A wet sucking sound suddenly filled the room, and everypony glanced around to find the source. It was coming from the bed. Specifically, from Pinkie Pie. More specifically, from her hand between her legs. She opened her eyes to find everypony staring at her in amazement. “What? That story was hot and I didn’t get to cum yet.”

Everypony made a silent agreement to ignore the pink girl for a while.

“Can somepony pass me the taser?”

Nopony moved to comply.

“You guys suck!” The sound started up again, more loudly and quickly this time.

“Anyhow, I reckon I know a thing or two about suckin’ Big Mac’s dick,” AJ began, “so I figure I can show y’all a thing or two.”

“Are you… are you sure, darling?” Rarity had a look of uneasy concern on her face. “I mean, you said you stopped doing that when you started dating… and you and Rainbow Dash…”

“Shucks, it’s nothing if it helps Fluttershy. And Dash doesn’t mind none. Right sweetie?”

“I uh… um…” Dash was still sitting dumbstruck.

“That’s what I thought.” And with that, AJ unclipped the straps of her overalls and dropped them to the floor. She peeled off her tight t-shirt, and kicked her discarded garments into the corner. “Now Fluttershy, Pinkie was mostly right. You don’t have to be so gentle when handlin’ a cock, but she’s goin’ about it all wrong.” She unclipped her bra and tossed it at Dash, followed by her panties. She pushed her breasts together with her hands, pointing them in Fluttershy’s direction.

“Ya gotta use all of your assets, ‘Shy. If ya got ‘em, use em. And girl…” AJ sent a meaningful look towards Fluttershy’s generous bust. “You certainly got ‘em.”

FLuttershy’s face turned a brilliant crimson as she covered her chest with her forearms. Applejack chuckled as she crossed the room and pulled Fluttershy’s arms away from her chest. “Seriously sugarcube, you’ve got the best rack I’ve ever seen.”

Applejack gave Fluttershy’s generous breasts a squeeze, eliciting a squeal from the girl. Fluttershy broke away from AJ’s groping hands and sought refuge behind Rarity. AJ chuckled and gave her own freckled breasts a squeeze. “I’m talking about a titjob. Ever heard of it?”

Fluttershy shook her head as she peeked over Rarity’s slim shoulder.

“Well. My boobs ain’t  exactly as big as yours, but they’ll do the job. Ya ready, bro?”

“Eeyup.”

“Alright then.” AJ kneeled in front of her brother’s erection and brought her breasts close. “Watch and learn how the Apple family does it, y’all.”

She pushed Mac’s erection between her breasts, leaving at least an inch poking through her cleavage. She opened her mouth wide, but before she could make contact a pink hand shot out towards her mouth and applied a generous amount of yellow lipstick to her lips. Taken aback by the sudden action, AJ simply blinked a few times before she realized what happened. She looked up to see Pinkie Pie still holding the tube of lipstick.

“What? It’s a rainbow party. What’s the point if you don’t use lipstick?”

AJ absentmindedly licked her lips, not being accustomed to wearing makeup as she was. “I guess I see your point… Anyhow, back to business.” She brought her newly-painted lips over the head of Mac’s penis and pushed as far down as she could go. She pulled her mouth off of his penis, making a slight pop noise as she did. She left his penis stunningly moist, which she added to by drooling her spit down her breasts, letting it pool up at the base of Mac’s penis.

“See ‘Shy, the problem with a titjob is that it can be really dry. So what you do is use your spit to make it aaaaaaall nice and wet.”

Fluttershy gasped at the impropriety of spitting on her boyfriend, but kept her eyes on the display. AJ used the newly applied saliva to coat her cleavage and her brother’s shaft until they were both slick, and then went back to work. She squeezed her breasts tightly around the shaft of his penis and brought them up to the base of the head before bringing them back down. She repeated this motion several times, picking up more speed on each thrust.

Big Mac leaned back on the bed, moaning. His head lay across Pinkie’s lap, but the girl barely noticed as she drove her fingers into and out of her soaking wet nethers. Her free hand found its way to Mac’s head, and she ran her fingers through his hair. AJ wrapped her lips around her brother’s cock, forcing it as deeply as she could in her mouth while grinding her breasts into his shaft. Her breasts made a slippery wet sound as they moved, while AJ made a slurping noise on Mac’s penis.

Mac began to buck his hips slightly as AJ sucked harder on his cock, and her tried to force more and more of his sex into his sister’s mouth. Pinkie grabbed a handful of his dirty blond hair and began to pull roughly, her own hips bucking as she forced a fourth finger into her pussy.  AJ could tell her brother was close to his limit, and she stopped the motion of her breasts to focus on taking as much of his length as she could into her throat. Mac’s hands shot to his sister’s head, grasping the base of her ponytail and holding it tight as his semen erupted into her throat. His hips bucked a few more times, forcing his length into her throat.

Applejack gagged slightly as she swallowed her brother’s semen, letting it flow straight into her stomach. She coughed as she pulled her mouth off of his cock, but managed to keep the last of his semen in her mouth.

“Let’s… let’s see… that cum…” Pinkie gasped her words as she pounded her fingers into her pussy as hard as she could, making a wet slapping sound ring throughout the room.

Applejack’s orange face turned a bright red as she opened her mouth, showing Pinkie the thick semen pooled in her mouth. Pinkie tried to form words, but all that came out was a formless scream. Her back arched, full rear raised high off the bed as her voice raised to a shrill shriek, her hand coming to a standstill deep within her pussy.

Applejack swallowed the thick load of semen, the nostalgic flavor sending a shiver down her spine as Pinkie flopped onto the bed, pulling her fingers from her pussy. Both girls gasped for air, giving each other a knowing look. Pinkie broke into a fit of giggles and wiped the sweat from her brow. “Holy fuck AJ… that was awesome.”

AJ just smiled and looked at her handiwork. Her brother was on his back, gasping for air with three colored rings coating his semi-erect cock.

“That was gross.”

AJ turned to face the speaker. It turned out to be none other than Trixie, who averted her gaze in embarrassment. AJ frowned and advanced on the blue girl.

“Ya know, I didn’t ask for your opinion.” She loomed over the unicorn, hands on her hips in indignation. “I did it to help my friend.”

“It’s just… incest…” Trixie was still trying to avoid AJ’s eyes.

“Fine then.” AJ turned with a huff, crossing the room to Pinkie’s makeup chest. She fished around until she found the most verdant shade of green Pinkie owned. She tossed it to Trixie, who barely caught it after a few fumbles. “Your turn, damn it.”