A Butterfly's Heat

by Dragonman461

Rating: mature
Tags: Romance, Fluttershy, Porn, Sex, Big Macintosh, Alternate Universe, My Little Pony: Friendship is Magic, Fetish
Length: 2380

Fluttershy, in the midst of the worst heat of her life, closes in on Big Mac.

In the midst of an intense heat, Fluttershy seeks out a familiar stallion that she's had her eye on for a while, even if he is a married stallion.

\\\\\\//////

Kinks: m/f, oral, vaginal, impregnation, somewhat cheating

Written for Akataja for the Summer Sin Celebration

Published 2021-07-30 02:40:01 UTC
Last updated 2021-07-30 02:40:01 UTC

Burning Wings and Apple Things

Fluttershy cooed as she felt the breeze washed over her body. A gentle, cool rush that blew through her coat and wings, her feathers rustling without care. Gliding over a row of apple-filled trees, she spotted her desired target and made her descent. Narrowing her eyes on the succulent red treat, she tucked in her wings and landed with a gallop, slowing to a trot and then a prance. A devilish smile crossed her face as she licked her lips.

"Hello, Big Mac!" she greeted, cocking her head to the side.

The red stallion turned and smiled, nodding to her.

"Fluttershy," he greeted. "Here for AJ?"

"Oh, I'm not here for her," she said, pawing her hoof into the dirt. "I... actually wanted to, well, talk to you. Would you mind if we could, I don't know... talk in private?" she asked, batting her lashes.

Macintosh's averting gaze and blush told her everything she needed to know. Resisting the urge to grin madly, Fluttershy noted to herself that she needed to give Rarity something in return for all of those lessons in flirting soon. Even if she didn't get what she needed out of today's little talk with Big Mac, at least she knew for certain now that she had it in her to make a stallion fluster so easily.

"Well, uh... alright, Ah guess."

Big Mac motioned for her to follow, and as she did, she drooled at the view. Big Mac liked to keep his tail short due to his constant work with large tools and pulling carts. She remembered the one time it'd gotten caught in an axel when he grew it out, and she was thankful it changed his life so drastically. With it cut so short, she caught a gorgeous view of his plump, swollen balls swinging between his meaty, rock-hard flanks. Two slabs of red marble grinding before her muzzle, the juiciest apples she'd seen in her life within a breath's reach, and since she caught him at the end of the day, his smell was lingering after every step. The willpower it took to not bury her face between his giant red orbs and just breathe was the stuff of legends. Watching them sway back and forth was hypnotic, and Fluttershy could feel the river of arousal already seeping down her legs.

Soon, they reached the barn, Mac pushing the door open and letting Fluttershy in. She flicked her tail around and whipped it towards his face, making sure to get a decent amount of her scent wafting to him. His nostrils flared and he shook his head a bit, the door closing as he tried to rub his face.

"So, Big Mac, I heard that Sugar Belle's pregnant now," Fluttershy said, approaching a bale of hay, poking it with a hoof.

The give of the hay made her turn off of it and turn towards a crate, a smirk breaking across her face.

"Uh, eeyup," he said, nodding. "She's about two months in, and it's uh... well..."

"Exhausting?" Fluttershy offered.

"That's... not a very, flattering way of putting it, but-"

"Tiring? Terrifying? Turning your gut in every way possible it makes you wonder if Pinkie started making balloon animals out of your insides?"

Macintosh uncomfortably tapped his back hoof against the ground, looking for an excuse to get out.

"Y-eeyup," he said. "Listen, Fluttershy, I gotta-"

A tossed bale of hay slammed the door shut as Fluttershy pulled a crate to the center of the barn.

"You must feel so tired~," she moaned, seductively leaning sideways over the wooden box, swaying her hips and flicking her tail. "All these weeks, have you had a chance to... relieve yourself?"

"Fluttershy, I'm married!" he protested. "Ah-ah can't just sleep around just because Ah can't lay with my wife!"

"Oh don't worry, she knows," Fluttershy whispered.

"What!?"

"Oh yes, I asked her myself. She's so concerned about your wellbeing, you know," she said, tracing a hoof over the edge of the crate. "So many tireless hours a day, without any fertile hole to gush your seed into after so much hard work. It must be horribly painful, don't you wish you could ease that pain, just for one day?"

As she stretched forwards over the crate, she smiled warmly, her wings on full display as she raised her flank into the air. Big Mac stuttered and paced around before throwing out a hoof.

"DISCORD!" he shouted. "This ain't funny, at all! Ah don't care if this is some kind of prank on me, but this is takin' it eight steps too far!"

Fluttershy let a sigh through her nostrils and clapped her hooves together. A blue border opened up a window next to her, showing Discord sitting on a desk, an entire rotary phone next to his face while he was using a tabletop miniature to paint a jar of paint.

"Oh, hey all, Discord here!" he said, waving to Big Mac. "Did Fluttershy ask you to lay yet?"

"Wait, where are you?"

"At a friend's place at the moment, just had to get out of the house since she's in heat and such," Discord said, adjusting his glasses. "Listen, could you be an immaculately astonishingly best friend and fuck her until you pump a foal or two into her She won't stop talking about how much she needs a foal now that Pinkie and Sugar Belle are pregnant, and I can't since I know that Celestia would probably burn every molecule of my genitals into a neutron star and make a constellation out of them. Anyways, toodles!"

The border snapped shut as Fluttershy clopped her hooves onto the box.

"If that's all the questions you have, would you kindly get over here and fuck a foal in me already?"

Big Mac gulped and approached the yellow mare, the heat in his body swelling with every step. The fire in her eyes, the sway of her hips, the flex of her wings and the motion of her tail all drew attention as if she were trying to enrapture all of Manehatten. Macintosh would never be caught admitting it, but he'd always fancied the buttery mare before he was married. Her quiet, reserved nature was down-right adorable and her mane always framed the perfect shape of her face in the cutest way possible.

But now, bent over a box and eyeing him up with the smokiest half-lidded gaze he'd ever seen, it was impossible for his shaft to remain contained any longer.

A pillar of black meat emerged from his sheathe like a mighty sword drawn at the dawn of war, the pegasus eagerly salivating at the sight.

"Mmm, my goodness, Mac! I had no idea you were serving such a delicious apple shake!" she said. "Why don't you get up here and, mount my throat with that monster?" she asked, wiggling her eyebrows.

He quickly propped his forehooves on the crate and aligned his now fully erect member with the tip of her nose. She playfully licked at his flaring tip, already drawing a bead of pre as he struggled to contain himself. Months of neglect had left him incredibly sensitive to any stimulus, but he knew that so long as-

"MMPH-GLCK"

Fluttershy proceeded to deepthroat him all the way to his sheathe in a single motion. As if she'd practiced on fully grown dragons, she swallowed every single salty inch of Big Mac's namesake with the ease one might have with a string of spaghetti.

The sudden overwhelming tightness and heat, the moistness and softness of her throat made Big Mac nearly burst in that one moment. He could easily have been convinced that pushing the entirety of Canterlot would be easier than trying to not cum that second, but he managed to withhold himself. His hooves found themselves latched onto her head, and he rocked his hips back and forth, his nuts slowly swaying into her nose.

Beneath him, Fluttershy was shuddering in ecstasy. The sheer girth and weight of Big Mac's meat in her throat filled her like nothing had before, the stretching of her neck as erotic as can be. Her tongue traced up whatever length it could reach, wiping up the sweat and residue from the time his cock spent untended to, the flavor divine to her lust-crazed mind. The heartbeat hammering her mouth was a rhythmic sensation that soothed her mind, setting her at enough ease that she could easily slide his medial ring right past her lips as he slid back before thrusting down her esophagus.

He was careful while fucking her throat, the technique tested mostly on his beloved wife who could only handle half his length. It proved to be just as effective on Fluttershy though, as he easily managed to hilt himself in her mouth as smoothly and naturally as possible, as though she were crafted for this one purpose. With his balls smashing into her nose, Fluttershy had no choice but to revel in the overwhelmingly potent aroma of pure male virility, the essence driving her instincts into overdrive, her pussy winking desperately to be ravaged. Already on the verge herself, Fluttershy tapped her hooves on the inside of Mac's thighs and motioned for him to pull off.

Sliding out carefully as to not make a mess, Macintosh's cock audibly popped out with a trail of drool stringing off of Fluttershy's tongue as she panted like a bitch in heat.

"Ahn, that... was even better, than I hoped it would be," she moaned, licking her cum-coated lips. "Now, be a good colt, and give me a good rutting."

Her flanks in the air, Mac nodded and made his way behind her. If he were honest, there were a few times he'd peaked her flanks here and there. After all, every stallion in town talked of them in hushed tones. Succulent as could be, with a pink winking pussy staring right at him, it was a sight that many citizens of Ponyville dreamed for many a lonely night. Something Big Mac once thought he'd only see in his dreams presented to him wholeheartedly and unabashedly. The yellow mare swayed her hips with a giggle, flicking her tail at him. He snorted and buried his face between her flanks and gave a hearty lick. Fluttershy cooed at the feeling of his broad, harsh tongue roughing up her folds, his unpolished eating fueling her desire for dick evermore. After mere seconds of sampling, Macintosh had had enough, and mounted her proper.

His flaring head rubbed against her slit, slick enough with pre and spit to slide right in, his length gliding into her velvety halls with a vice-grip pulling him in greedily. The two moaned and panted, overwhelmed with the sheer pleasure and warmth that the other provided. His cock already sliding the medial ring in, Big Mac could feel the end approaching sooner than he'd like, and quickly rammed everything he could in. Fluttershy squeaked as she felt his flare bump deeper and deeper until it pressed against something that had never felt contact before. The moment they touched, lightning ran up her spine and she clamped down hard as she came.

Cum gushed out of her pussy as Mac's balls slapped her clit, the utter sensation of being pressed down upon and filled to the brim crashing through the mare like a hurricane. Big Mac could barely hold on at all, the sheer pressure of her pussy milking and pulling his length, coaxing him into unleashing everything driving him ever closer to the inevitable. He managed barely two full thrusts before his felt the dam give way, and his balls jerked and clenched. His flare pressed against Fluttershy's inner sanctum, his cum spurted right on in to her deepest crevice, the pressure forcing all excess to rush down his length and out the mare's cunt lips as they quivered.

Shuddering, the two stayed in place for a minute before they started panting. Big Mac slumped over and rest his head on Fluttershy's shoulder. After a few breaths, Mac felt Fluttershy's wing wrap around his head and pull him closer as she whispered.

"More."

The single syllable sent chills down his spine, the reverberations of the word reawakening his pillar of meat. Once more the proud son of the Apple Clan was hard as diamonds, and with a sloppy step back, he pulled his length out and fucked the mare beneath him.

There was no gentle embrace, there was no words of encouragement. There was no display of emotion or phrases of passion. In this moment, there were only two animals, desperate for relief that only the other could give them. Over and over, pound by pound, Macintosh drove his cock deeper and deeper into Fluttershy's quivering mess of a pussy. Load after load, hour after hour, they kept going and going. Eventually the box they fucked on broke into splinters, though neither of them were hurt. That lead to a wall being used to support Fluttershy as Big Mac slammed her against it. Once that gave way, they found a blanket and made do with what they had. Eventually, Fluttershy took the lead and pinned Mac against the floor as she rode him through the night. On and on they went, even through the sunrise, sweat and cum indistinguishable on their coats in the aftermath. Only when the two of them could barely even move did they cease, their fluids spent to the last drop.

As they lay in the excess, exhausted beyond all physical capability, Fluttershy's wings wrapped around Big Mac, holding him closely as her legs squeezed tightly, intent on keeping his flared cock buried in her all throughout the day. Watching from the doorway, Sugar Belle smiled and locked the door behind her as she set a blanket over the two, leaving a card for Fluttershy as she planted a kiss by her ear.

"Welcome to the family," the baker whispered before leaving them to their slumber.

Author's Note

This was made for Akataja for the Summer Sin Celebration! I hope you enjoyed it!

If you enjoyed this enough to want a story of your own, feel free to PM me for a commission!