Big Mac's Snack

by Shiro_tanuki

Rating: mature
Tags: Sex, Fetish, Big Macintosh, Anthro, My Little Pony: Friendship is Magic, Rainbow Dash, Porn
Length: 3518

Rainbow Dash tries to surprise a super-sized Big Mac. It doesn't go well. Or does it?

Big Mac has been struggling to get used to his new size. Rainbow Dash thinks she knows a way to cheer the big guy up. Maybe it does cheer him up, but not in the way she thinks...

This is a Macro Vore fic. Don't read if you aren't into that.

Published 2024-08-03 08:00:01 UTC
Last updated 2024-08-03 08:00:01 UTC

Chapter 1

Big Macintosh let out a sigh, as he carefully laid back against the side of the barn. The old structure creaked and groaned under the weight of his massive cranium, but the stalwart building held.

After an “accident” involving his sister's friend, Twilight, and some magical concoction that was supposed to make bigger apples, Big Mac was now stuck at a hair short of three hundred feet tall. Fortunately, this meant that harvesting the fields was foal's play now. Unfortunately, he had no clothes and was finding an adaquate food supply to be a little... difficult to come by.

Lost in his thought, Big Mac finally noticed a squirming lump trapped under his short-cropped tail. He groaned, thinking he'd trapped another one of the cows or something as he reached down and carefully freed his unknown companion. To his shock (but not surprise), he found a multicolored mane sticking out of his closed fist as he brought it up to his face. As his fist opened, Rainbow Dash sat bashfully on his palm, her cheeks redder than his as she stared up at his massive deadpan expression.

“Heya, Big Mac!” Rainbow stammered, crossing her arms to cover her lithe, nude form. Nude? “Fancy seeing you here... by the barn... where you sleep... ehehe...”

“Why are you nekkid and stuck in my tail?” Big Mac grumbled, his breath blowing the petite mare's hair away from her face. The stallion was tired and hungry, and he was not in the mood for some prank.

“Okay, I know how this looks!” She sputtered, trying to back away and pushing herself into the refuge of his oak-sized fingers. “I was just... well, I figured you'd be... lonely?” Rainbow put on her best flirtatious smirk. Normally, that smirk was enough to get her just about anything she asked for. Right now, with a 300 foot tall stallion staring her down, it was somewhat less effective.

Big Mac snorted, and closed his fist around the mare reflexively, cutting off a surprised yelp with the meat of his thumb as he thought about what to do with her. Normally, he would have killed for a roll in the hay with the prismatic pegasus, but that was when their anatomy was...compatible. Plus, he was still pretty sure this was some sort of prank, and that Applejack would come bursting out as soon as he fell for it. Just then, his stomach grumbled, and he had a devillish idea.

If it is a prank, I'll just turn it around... Big Mac lifted the mare to his face, and grinned. “Well, Rainbow, I admit I have always admired you. You always reminded me of a beautiful Zap Apple, ready for harvest.” Rainbow blushed, a confused grin crossing her features.

“...Thanks?” She grinned back at the massive stallion. “So, does that mean we're gonna have some fun, or what?” She licked her lips reflexively at the thought of finally fulfilling one of her secret desires.

“Oh, I'm gonna have some fun alright.” Big Mac said as he chuckled. “But first, we gotta find out if you taste like a Zap apple too.” He pushed his muzzle into his sister's friend, nuzzling her torso before lapping at her with his tongue.

Rainbow only had a moment to ponder what Big Mac meant before she was pressed firmly against his massive muzzle. She put her hands up and pushed against the mountain of a stallion, but only succeeded in dimpling his flesh and feeling the solid bone beneath. His tongue snaked out, and covered her belly, drawing a gasp from the mare. She had never been more turned on in her life! She gave in and started pressing into his probing tongue, the hot wet saliva dribbling over her needy groin. His tongue pressed up, over her petite breasts, and she barely was able to catch a breath before it smothered her face. His tongue lingered over her face for a lung-burning moment before he withdrew, leaving her gasping for air and wiping drool from her eyes.

Big Mac drew back and hummed, drawing the flavor from his tongue. She's actually...delicious! He realized. He'd intended on stopping here, but since AJ hadn't yet emerged from the orchards, he figured he'd move on to the next stage of his plan. His stomach grumbled its approval, and before he could change his mind, he opened his mouth under his palm and tilted it, letting gravity do the work.

Rainbow had just barely gotten her bearings back before the world started to shift. She looked down and saw Big Mac's greedy maw open beneath her, the same tongue that had given her a more thorough makeout session than ever before was waggling slightly, as if in greeting. Unsure, Rainbow tried to flutter her wings, but they were water- or rather spit-logged, and only gave a meager shake. Her lubricated bottom slid over the massive palm, beginning her descent into the mouth of the beast. Her heart fluttered in her chest as Rainbow tried in vain to stop herself. In at the last ridge of his palm, her feet got just enough purchase to tilt her forward, sending her tumbling face first into the massive mouth below.

Big Mac felt the pegasus mare land on his tongue with a meaty slap. He pulled his tongue back into his mouth and closed it, feeling a tiny appendage get trapped between his lips. Tiny hands scrabbled in his mouth, slipping over his tongue and gums with wild abandon. He couldn't help but feel a wave of arousal at the sheer power he currently had. Rainbow Dash, element of harmony, gorgeous athlete, and one of his sister's best friends was nothing more than a morsel in his mouth, her life ready to be snuffed out by a clench of his teeth, or to be swallowed down and made a part of him... forever.

That thought in particular sent a euphoric groan out of Big Mac's chest, but he steeled his will. AJ is gonna freak here any moment. He thought proudly, as he idly began to play with his mouthful.

As her face slapped into the meaty surface of a gargantuan tongue, Rainbow Dash was immediately aware of the change of temperature. While outside had been a balmy 68 degree evening, inside of Big Mac was a blast furnace, his breath blowing hot, moist air like a sauna over her diminutive form. She tried to push herself up from the offending beast, only to watch everything darken as it drew her back into it's lair. She watched in horror as the yawning chasm behind it flexed, beckoning her down into the depths, to be claimed like an after work snack. Her imagination conjured the image of somehow being aware as she was absorbed, forced to be nothing more than a segment of muscle on the hardworking stallion's firm ass. In spite of the incredible heat, Rainbow shivered, her sex moistening in spite of herself.

Then she was cast into darkness as the lips closed behind her, sealing gently around her calf. The soft press of boulder-like teeth against her leg gave her another fright, and she started scrabbling madly for something, anything to pull herself out of this nightmare. A massive gust of air blasted her in the face as everything vibrated with noise. Was that... a moan? Rainbow thought, disoriented by the sudden pressure change. Before she could process that, the beast under her awoke and began to press into her. The tip of the massive tongue snaked it's way between her legs and pressed against her needy cunt, causing a moan of her own to join the heated air. Wow, that's... too awesome! She thought, panting. Despite her situation, Rainbow Dash started grinding into the tongue, determined subconsciously to enjoy the sensation for as long as it- and she- could last.

Big Mac noticed a new flavor on his tongue as he tasted his treat. In spite of her fantastic physique, Rainbow Dash was quite curvy and, to his distinguishing palate, pleasantly soft. He felt her start to move rhythmically, her hips bumping slightly against the roof of his mouth as two miniscule breasts pressed eagerly into the flesh of his taste buds. His eyes widened, and he nearly swallowed in shock. She's.... enjoying this?! He shook his head. The isolated farmboy couldn't imagine her possibly enjoying this for real, she had such...impressive taste in stallions. He smirked at the irony of that thought. Now I'm the one with impressive taste.

She must be trying to take back control of the prank, he reasoned, trying to shock him into releasing her. Well, that ain't gonna work at all. He pressed her firmly into the roof of his mouth and slurped her exposed leg in, taking her whole form into his maw. Her squrims intensified, sending electric shocks through his body and making him notice his own arousal. His massive erection stood at full mast, already leaking pre. The thought of AJ out there, just watching this... somehow it was even more erotic.

After just a moment's hesitation, the stallion gave in as started to stroke his needy member, suckling on his squirmy dessert. He was already so high strung that it hardly took any time at all for him to climax, sending gallons of ropy seed spraying all over his chest. A burst of flavor in his mouth startled him as he thought he might have bit down too hard. He relaxed his jaw, considering for a moment if it would be better to spit her out right away, but as he noticed the flavor wasn't anything like blood the reality dawned on him. Well, at least you enjoyed it too. He chuckled, letting his captive have a moments reprieve. Tiny, gentle movements brushed on the surface of his tongue, like a lover's caress.

Big Mac basked in the afterglow for a while, before he came back to his senses and remembered that his sister was likely watching. The movement in his mouth had picked up again. Rainbow wants out so she can tell me it was just a prank. He reasoned, his eyes searching for his sure-to-be embarrassed sibling. His stomach rumbled again, and the dark thoughts from earlier returned in force.

Well, if I let her back out, its still just a harmless prank...

That was undeniably the best orgasm of my life. Rainbow thought as she laid on the dormant muscle. She stroked her hand over its surface, the small bumps and ridges playing under her fingertips as the hot drool swirled through them. Big Mac's massive breaths washed over her, enveloping her completely in his air, in his mouth. She basked in the afterglow for an unknown stretch of time, before she realized that her captor didn't seem to be letting her out yet. She started to squirm again, pressing herself up onto her hands and knees against the roof of the mouth.

“HEY! That was great and all, but I'd like to talk to the hunk who just ATE me!!!” Rainbow yelled into the abyss, a strange echo coming from the dark void in front of her. A faint grumbling noise echoed back, something deep within the beast waking up and announcing its presence. That instinctive fear started prickling the back of her neck as her earlier thoughts of being devoured played in her mind.

“Big Mac?” She whispered, frozen in fear.

Suddenly the world started to shift, tilting under her. Her soaked hands and feet started to slip along the tongue, and Rainbow immediately pressed herself as hard as she could against the palate above, wedging herself in place. “HEY! DON'T EAT ME!!!!!!”

Big Mac felt a weird buzzing in his mouth, like a hum coming from inside instead of his own lungs. He could almost imagine he heard Rainbow's scratchy voice, trying to reason with him as though she already knew what he was doing. An unusually cruel grin crossed his face, and he started to tilt his head back. He felt his morsel start to slide towards his gullet, before she pressed hard into his palate, forcing her flavor into his taste buds. Another buzz, and this time he definitely heard her voice, faintly echoing in his head.

“Don't eat me!!!” it cried. He chuckled, his cock already twitching in arousal as his prey finally realized what he was doing. Sorry Rainbow, he thought smugly. You shoulda thought it through before you pranked a hungry stallion. Big Mac moved his tongue under his prey and deftly dislodged her. The soft mareflesh slipped to the back of his throat, her tiny legs already entering the point of no return. A memory of grossing out his sister by swallowing chewed food with his mouth open returned to the predacious stallion, and on a whim Big Mac opened his maw again. Suddenly the faint buzzing cries were clearly audible from his mouth.

“Wait! You don't have to do this!!! Please!!!” She cried, as her tiny hands grasped at his back teeth. “I-I just wanted to have some fun!!!I'll do anything, I'll be your pet!!!” The sobs normally would have made Big Mac think twice, but his newly discovered hunger made the terrified cries of a mare he'd known for years far more arousing. He started to stroke his engorged shaft again, and moaned around his mouthful, temporarily deafening his prey.

“Big Mac, PLEA-” Rainbow's last cry was cut short as he swallowed, the back of his tongue slapping her in the face and breaking her grip. He felt the squirming mass start to descend, and swallowed again, almost scornfully. He was putting her in her rightful place, she was his food now and that's where she belonged. The faint buzz of her voice faded quickly, disappearing as she did behind his collarbone, only for his own moans to take their place. He didn't care anymore if it was a prank, or if his sister was watching. He'd just eaten a mare, and now she was HIS. Just as he felt a mass settle in his stomach, Big Mac came again. This time he didn't hold back, hollering his dominance and ecstasy for the world to hear.

As he came down from his orgasm, he felt a fluttering in his stomach. He patted it with his hand, imagining his recent lover being bounced around like a filly in a bounce house. He looked down, and was delighted by the fact that there was absolutely no sign that Rainbow Dash's entire hopes and dreams were now being threatened by his hungry belly.

“Alright AJ, I'm going to sleep. If you want to help your friend, you'd better come out now!” He called out into the darkness.” Still, no response came. He shrugged, and patted his belly again. “Well, sorry Rainbow. I guess your prankin' buddy ran off. Hope you didn't have anywhere to be!” He chuckled again, and rolled onto his side. The squirming in his belly intensified, and he sighed contentedly. For the first time in days, he wasn't hungry. Within minutes, he drifted off to sleep.

Rainbow Dash desperately tried to stop her descent into her friend's brother. She pressed out as hard as she could, but the esophagus muscles were far too strong for her. She was squished downwards, pulled into her final resting place. His massive heartbeat became louder as she descended, overriding her screams of terror as she passed it, until it faded once more as she approached the stomach. Her descent stopped at a tight structure, her body being momentarily forced into a ball as she was pressed down onto the sphincter, before it opened and dropped her into a slightly more open space. Immediately, she tried to throw her hands back up through the opening, but it shut before she could stop it. She pried at the draping flesh anyway, desperately trying to escape with the energy of the damned, kicking and thrashing against the pulsating walls that surrounded her every side.

The stomach stank slightly of old apples, and she could feel liquid pooling around her waist as she sat reclined in the constantly moving chamber. Suddenly everything shook as massive impacts hit the wall to her left. Dash bounced off of the soft walls, grateful that there wasn't anything solid in here for a moment as she was sure that would have hurt. A rumbling noise came from above, and she realized it was her devourer's voice.

What is he talking about? A prank!?!?!! Rainbow broke out in nervous laughter. This was all a prank! That must be it! Applejack must have put him up to this!! When I get out of here, I am SO going to find some poison joke and return the favor! Rainbow swore, as she waited to be released. But then, the voice rumbled from above, and her hopes were instantly dashed.

“WAIT!!!! I WASN'T PRANKING YOU!!!!” She screamed. The world shifted, and the walls became the floor. Rainbow fell into a pool of fluid, coughing and sputtering as her skin starting to tingle under her fur, and the stomach started to grind on her in earnest. She fought as hard as she could, hitting the walls with everything she had, as she started to feel lightheaded. Her last thought before she passed out was that at least she'd be part of a handsome stallion instead of someone she hated...

-Nonfatal End

Big Mac woke up to the sounds of birds chirping. The sun was just peaking over the horizon, and he was curled up around the old barn like an uncomfortable pillow. He yawned, blinking the sleep from his eyes. Boy, that was some dream. He thought, as he patted his belly. Maybe when he got back to normal, he'd finally get up the courage and ask Rainbow Dash out on a date. Clearly, some part of him thought she was cute enough to eat. Chuckling at his own dumb joke, he stood up, and lumbered over to the small stream to get a drink. As he slurped down some water, he noticed the feeling of something stuck to the roof of his mouth. He reached in, and plucked the offending object out, holding it between two fingers.

Suddenly, Big Mac froze. Between his fingers was a tiny, blue feather. A wave of emotion came over him, and he pressed his hands to his gut, hoping to feel some sign that the prismatic pegasus was still allive in there...

Rainbow Dash was awoken by her surrondings being pressed into her. She couldn't see anything, feeling only hot, slimy walls pressing against her on every side, pulsing as they moved her steadily along. If there was a hades, this was as close as she could imagine. She panicked, squirming desperately against the confining walls... his walls. Suddenly, the night before came back to her, and she screamed.

“BIG MAC!!! I'M ALIVE IN HERE!!!! LET ME OUT!!!!” She cried, her voice hoarse.

The sudden squirms stabbed the stallion with a spike of pure arousal. She was in there, in him. He grinned as his member stiffened once more.

“Good mornin' to you too, Rainbow. Do me a favor and keep squirmin', like a good toy.” He said, as he started to stroke. He was going to keep her for as long as he could, maybe even forever. He grinned at that thought.

-Fatal End

Big Mac woke up to the sound of birds chirping. The sun was just peaking over the horizon, and he was curled up around the old barn like an uncomfortable pillow. He yawned, blinking the sleep from his eyes. Boy, that was some dream. He thought, as he patted his belly. Maybe when he got back to normal, he'd finally get up the courage and ask Rainbow Dash out on a date. Clearly, some part of him thought she was cute enough to eat. Chuckling at his own dumb joke, he stood up, and lumbered over to the small stream to get a drink. As he slurped down some water, he noticed the feeling of something stuck to the roof of his mouth. He reached in, and plucked the offending object out, holding it between two fingers.

Suddenly, Big Mac froze. Between his fingers was a tiny blue feather. A wave of emotion came over him, and he pressed his hands to his guts, hoping to feel some sign that the pegasus was still alive in there, but all he felt was a happy burbling. After a moment, he came to a decision. He couldn't undo what had been done. It was too late for Rainbow to be anything but a part of him forever. He imagined for a moment that he could feel her presence, a faint hint of a cocky wave, as a warmth built in him. No, this was fine. He needed to eat, and he'd given her a good time. He nodded, and started off towards the main house, more energetic and happy than he'd been in a while.