This was made using a local install of Reforge for Stable Diffusion using StableMond: https://huggingface.co/Xeno443 . I'd recommend any or all of the 'Mond models, they're all some of the best furry SDXL models.

For the upload Tail Tagger was used to assist in tagging: https://github.com/renfald/tail-tagger . Along with the JPT-3 for AI assisted tags: https://huggingface.co/RedRocket/JTP-3/tree/main/models?not-for-all-audiences=true

The late afternoon sun poured golden light through the open barn doors at Sweet Apple Acres, turning the hay into a warm, fragrant blanket. Applejack leaned against a wooden fence post, her straw hat tilted back, one hand on her hip while the other idly rubbed a few freckles on her sweat-slicked shoulder. Sweat gleamed on her bare curves—thick thighs, full breasts, the soft give of her belly—catching the light in a way that made her skin glow like polished bronze. She was topless today, as she often was on hot farm days, and the faint scent of hay, fresh sweat, and the earthy musk of her own arousal hung in the air.

Twilight Sparkle sat cross-legged in the hay just a few feet away, her purple coat shimmering with a light sheen of perspiration. Her dark mane with pink stripes fell messy over one shoulder; her blue eyes were wide and sparkling with curiosity. She’d been reading a spellbook earlier, but the heat and the steady rhythm of the farm had left her flushed and restless. Between her thighs, the short fur of her belly was already damp, a secret warmth that made her shift uncomfortably.

“Gosh, Applejack,” Twilight said, voice breathy and high-pitched, “I was just thinking about how nice it is to have all the big brothers here together. Shining’s been so… responsible lately. And you and Big Mac must be so close, running this farm together. You ever just talk about how big he is? I mean… his… everything?”

Applejack’s green eyes sparkled with mischief. She grinned that crooked, honest grin of hers and gave her brother’s name a playful little hoot. “Big Mac? Oh, sugarcube, you have no idea. He’s the biggest, strongest, manliest stallion in the whole wide world. That quiet ‘eeyup’ he lets out when he lifts a whole wagon? Deep enough to rumble right through your chest. Smells like… like honest sweat and leather and something wild and warm that makes my knees weak.”

Twilight’s ears flicked. “Really? Shining’s… well, he’s a prince. He trains every day, he’s elegant, but he’s smaller. Not like that. Not… powerful. I keep imagining what it’d feel like to have him this close and… and strong.”

Applejack laughed softly, the sound low and throaty. “Bet you would, sugarcube. Bet your little heart’s been racing every time he’s around you. But let me tell you something.” She leaned in, voice dropping to a conspiratorial whisper. “I’ve seen him work. That red body of his—every muscle carved like he was forged by the forge itself. Sweat pouring down those ridges. And his… his scent. Oh, Twilight. When he gets worked up, it’s like a thick, heavy cloud that wraps around you. Masculine. Deep. It crawls into your nose and stays there, making your head spin and your pussy throb. Makes you want to bury your face in his chest and never come up for air.”

Twilight’s cheeks burned. Between her legs, a fresh trickle of slick warmth escaped her folds, soaking into the straw beneath her. She crossed her thighs without thinking, but it only pressed the moist heat against her sensitive clit. “That… that sounds intense,” she whispered, voice cracking. “Shining’s always so careful. Gentle. But Big Mac… he doesn’t have to be careful, does he? He could just… overpower everything.”

The two mares stared at each other for a long moment, the air between them thick with unspoken thoughts. Then Applejack’s grin turned wicked.

“Alright, Twilight Sparkle,” she said, voice low and teasing, “let’s put it to the test. Right here, right now. Big Mac’s out in the fields, but he’ll be back soon. If we can just get a good whiff of what’s drifting from him and feel how hard he gets when he’s this close… we’ll know who wins. Who’s bigger. Who’s more manly.”

Twilight’s mouth fell open. “You’re… you’re serious? We’re going to smell each other’s brothers? Together?”

“Uh-huh.” Applejack’s tail swished. “And if Big Mac smells even half as good as I swear he does, you’re never going to stop thinking about it. Your magic’ll short-circuit. I can already see it.”

Before Twilight could answer, the distant creak of the barn doors announced Big Mac’s return. The giant earth pony filled the entire doorway—red skin glistening with sweat, muscles bulging like they could lift the sky itself. His brown hat was pushed back, revealing that thick blonde mane matted with sweat. His powerful chest rose and fell with every breath, abs rippling, arms thick enough to crush boulders. And lower—between his massive legs—his cock hung heavy and half-hard, the thick shaft already thickening as the heat of the day and the scent of mares reached his nostrils.

He paused, nostrils flaring. The deep, rumbling voice that rolled out was like distant thunder wrapped in velvet.

“Well, howdy, y’all. Feels mighty warm out there. Y’ever notice how the air gets thick when a big strong stallion’s been working hard?”

Applejack’s eyes lit up. She inhaled sharply, then let out a soft, satisfied moan. “Oh. Oh, sugarcube… he’s already started. Smells like pure, raw masculinity. Like honest sweat mixed with that thick, leathery musk that clings to everything. It’s… it’s everywhere.”

Big Mac took a slow step forward, the floorboards creaking under his weight. The air around him thickened instantly. The masculine musk poured off him in waves—earthy, warm, slightly salty, with a deep, animal tang that made every mare’s head spin. It wrapped around Twilight like invisible hands, pressing her thighs together harder as fresh arousal flooded her pussy, soaking the straw beneath her in warm, sticky wetness.

“Big Mac?” Twilight breathed, eyes wide and glassy. Her voice was barely audible. “That… that smell… it’s so strong. It’s making my head feel all fuzzy. Like… like I could just melt into it.”

Big Mac stopped right in front of them, towering. His deep voice rumbled again, closer now, vibrating through the air and straight into their chests.

“Eeyup,” he said simply, but there was a low growl beneath it. “That’s just what honest work does. Makes a stallion proud. Makes a pretty mare’s knees weak.” His eyes flicked to the way both mares were breathing harder, the way their bodies were leaning toward him. His cock twitched visibly, thickening further until it hung heavy and half-erect, the swollen head already starting to glisten with pre-cum. The sheer size of it—thick as a pony’s leg, veined, powerful—made the air feel charged.

Applejack stepped closer, pressing her bare breasts against Big Mac’s red side, inhaling deep. “That’s my brother,” she murmured, voice thick with pride. “The biggest. The strongest. That cock… it’s massive. I’ve seen him swing it when he’s hauling timber. It’d stretch you wide open, Twilight. Make you feel every inch of how unmanly small you really are.”

Twilight’s legs trembled. A fresh gush of slick ran down her inner thigh, dripping onto the straw. Her magic flickered weakly around her horn—tiny sparkles that died almost instantly. “It’s… it’s too much,” she whispered, voice cracking. “His smell is everywhere. It’s crawling into my nose and going straight to… to between my legs. I’m so wet, Applejack. I can feel it. It’s soaking the straw. I’ve never… never felt this turned on just from a smell.”

Big Mac chuckled, the sound low and warm, vibrating through his massive chest. He reached down slowly and wrapped one huge hoof around the base of his growing cock. The thick, veined shaft pulsed in his grip, growing even thicker, the head flaring wider as pre-cum beaded and dripped in thick, heavy strings onto the hay. His balls—each one the size of a pony’s head, heavy and full—swung heavily, slapping softly against his thigh.

“Damn,” he rumbled, voice deeper now, husky with restrained power. “Y’all are lookin’ at me like that. Makes a stallion proud. Makes me hard as a rock just from the way your scents are mixing with mine.”

He took another step, closing the distance. The musk intensified—thick, heady, masculine waves crashing over them. Applejack moaned openly, rubbing her cheek against Big Mac’s sweat-slicked chest. Twilight’s knees buckled slightly; she caught herself on Shining Armor’s arm, but the white unicorn wasn’t even here yet.

“Shining!” Twilight called out, voice high and breathless. “Shining, come see this! Big Mac’s… he’s just so big. So strong. His smell is making me feel things I’ve never felt. It’s… it’s driving me crazy.”

Shining Armor stepped through the barn doors a moment later, still in his half-unbuttoned guard uniform, shield cutie mark on his flank. He froze the instant he saw the scene—Big Mac’s towering, naked body, that enormous cock already fully engorged and throbbing, the massive balls hanging low and heavy. The white unicorn’s face went crimson. His own cock sprang up instantly, rock-hard in seconds, the shaft straining against his uniform pants with a visible bulge that was painfully obvious.

“G-great apple sauce!” he stammered, voice cracking. “I… I just… that smell. What is that? It’s everywhere. It’s… it’s overpowering. My head’s spinning. I can’t stop looking. It’s so… so manly. So powerful.”

Big Mac turned toward him, eyes calm but intense. His deep voice rolled out like a command wrapped in kindness.

“Well now, prince. Y’all smell that? That’s just what a real stallion smells like when he’s worked all day and knows he’s the biggest. Feels good, don’t it? Makes your cock throb just thinkin’ about what it could do.”

Shining Armor’s hips jerked involuntarily. The huge, throbbing erection in his pants leaked a wet spot, the fabric stretching tight. “I… I know it’s wrong,” he breathed, voice trembling with shock and awe. “I’m a prince. I’m Twilight’s big brother. But… but his scent. It’s so thick. It’s making me so hard. I can’t stop. My balls feel like they’re going to burst just from breathing him in.”

Applejack laughed, proud and smug, and pressed herself fully against Big Mac’s side, one hand boldly cupping the base of his massive cock. It was so thick her fingers barely met around it. “That’s right, sugarcube,” she purred. “Tell him how manly you are, Big Mac. Show these two how it’s done.”

Big Mac’s voice dropped even lower, rumbling through the barn. “Eeyup. I am. And I can feel y’all gettin’ wetter just from bein’ near me. Smells like pure, honest arousal. Makes me want to lift y’all up and show y’all exactly how big and strong a real stallion can be.”

The air was thick with musk, sweat, and raw sex. Applejack’s pussy was dripping openly now, a steady trickle running down her thighs. Twilight’s legs were spread wide, fingers unconsciously rubbing circles on her soaked clit while she stared at Big Mac’s cock in open-mouthed awe. Shining Armor was panting, his own massive erection straining painfully, tears of overwhelmed pleasure in his eyes.

Big Mac simply stood there—towering, powerful, unapologetically masculine—while the two younger mares lost themselves in the overwhelming, intoxicating scent and presence of the biggest stallion in the world. And Applejack, ever the smug, honest one, just smiled wider, proud of the man she called brother.

“See?” she whispered to Twilight, voice husky. “Told you he was the manliest.”

Twilight could only nod, breathlessly, as the farm filled with the deep, rumbling voice and the heavy, heady musk of Big Macintosh—the stallion who made the entire world feel small, and made every mare wet just by existing.