I used NovelAI's unlimited gen membership for $25 a month. Note that "unlimited" is kind of a lie, it's only unlimited if you're under a certain resolution and only if you're not using any of the advanced features. Upscaling and other features cost the on-site currency, which the membership gets you 10000 a month. That should be more than enough for a month, but you can burn through it quickly since NAI gens so quickly.

The afternoon sun bathed the bustling bakery street in warm golden light, the air thick and heavy with the intoxicating aroma of freshly baked muffins. Hundreds upon hundreds of golden-brown treats were piled high in a towering pyramid right in front of the bakery counter—some still warm from the oven, their tops dusted with sparkling sugar, others split open to reveal gooey chocolate-chip centers or fruity fillings that made the tongue tingle just from the sight. The rich, yeasty scent of butter, vanilla, and cinnamon hung in the air like a sweet cloud, mixing with the faint sweetness of the muffins themselves and the growing musk of arousal and cum that was about to fill the room.

Derpy Hooves sat happily on the counter itself, her fluffy gray body bouncing with every excited little jiggle of her wide hips. Her blonde mane was a wild, cloud-like halo around her face, floppy ears twitching at every happy sound, and her big yellow eyes sparkled with pure, dumb muffin bliss. She wore her usual light-blue cloud-patterned dress, the hem riding up her thick thighs, and she had one of the biggest muffins in both hooves, already half-gone. Crumbs stuck to her cheeks like glitter, and her tongue lolled out in a goofy grin as she chomped down, cheeks puffing out like she was about to pop.

“Eeee! Look at all these shuper-duper muffins!” she squealed in her bubbly, ditzy voice, cheeks puffing out even more. “This one’s got the shweetest chocolate chips… mmmph… and the one with the shprinkles is gonna be the bestest! Derpy’s so happy! Thisish one… has the shweetest shugar on top… and I babbled them in my mouth all by myself! Derpy’s so shquishy and happy! Eeee! So many choices! This one’s the shuper special… mmmph… yay! Muffins! Eeee! More shiny golden ones! This one has the bestest fruit filling… mmmph… and this one’s got double chocolate chips… derpy’s the luckiest pony! Eeee!”

She took another massive bite, eyes crossing in muffin ecstasy, and kept babbling happily around the mouthful, her body jiggling with every happy chomp. The bakery counter was already speckled with her crumbs, and the pile of muffins in front of her grew smaller by the second as she kept at it.

Doctor Whooves was already rock-hard, his light-blue coat damp with sweat, messy brown mane sticking to his forehead. His broad equine chest heaved, and his thick purple cock—easily ten inches of throbbing, veiny horse meat—stood straight up, the flared head shiny with precum, the heavy balls below it drawn tight and ready. The blue hourglass in his cutie mark was tilted sideways, clearly signaling what was about to happen. He pressed his body against her back, one hand gripping her hip, the other guiding his fat cockhead right to her sloppy, puffy pussy lips.

Derpy just kept chomping, oblivious, her body jiggling with every happy bite.

“Yay! Muffins! Eeee! So many shiny golden ones! This one’s the shuper special… mmmph… yay! Muffins! Eeee! More shiny golden ones! This one has the bestest fruit filling… mmmph… and this one’s got double chocolate chips… derpy’s the luckiest pony! Eeee!”

Whooves lined up, then slammed in with a brutal, wet thrust. His massive cockhead popped past her tight, dripping entrance and drove straight into her hot, clenching walls. Derpy’s eyes flew wide, then rolled back completely, tongue lolling out as a long “Eeee!” escaped her.

“Eeee! Ohhh… itsh so big… mmmph… yay! Muffins! Eeee!”

He didn’t stop. Whooves started pounding her like a jackhammer, hips slapping forward with savage, meaty *PLAP PLAP PLAP PLAP* sounds that echoed through the bakery. His heavy balls smacked her jiggling white ass with every thrust, the wet squelch of her creamy pussy juices filling the air as they coated his shaft and dripped down her thighs in long, shiny ropes. His cock stretched her open, the thick veiny shaft disappearing into her with every savage stroke, her inner walls rippling and milking him greedily. The mound of muffins in front of her grew smaller as she kept chomping, but the bakery counter was already soaked with her juices and his leaking precum.

Whooves's thrusts grew even more violent, his powerful hips driving into Derpy's quivering body with a desperate, primal rhythm. Sweat poured from his brow, plastering his wild brown mane to his face as droplets flew from his flaring nostrils with each panting breath. His muscular legs trembled with the strain, the blue hourglass of his cutie mark distorted into a wild swirl as his body tensed.

Every muscle in his body corded as he slammed into her with renewed ferocity, his heavy balls smacking her ass with thunderous wet slaps that made her whole body ripple like jello. His thick purple cock swelled even larger inside her, the flared head battering against her deepest walls as his shaft throbbed with impending release. Veins stood out along his length, pulsing with blood as he pistoned into her dripping heat with abandon.

Meanwhile, Derpy's entire world remained consumed by muffins. Her yellow eyes were hazy and unfocused, seeing only the golden-brown treats in front of her. Crumbs dusted her bouncing breasts as she reached for another muffin, her hooves trembling slightly from the vigorous fucking she was receiving.

"Mmmph... thish one has... ohhh... the shweetest... blueberriesh..." she mumbled around a mouthful, her voice airy and high-pitched despite the brutal pummeling her body was taking. Her wide hips jiggled with every impact, the hem of her light-blue dress riding higher to expose more of her quivering white flesh.

Whooves's thrusts became erratic, his control shattering completely. He gripped her hips so tightly his knuckles turned white, driving into her with short, powerful jabs that made her whole body rock forward. The wet sounds of their coupling filled the bakery, mixing with Derpy's happy muffin murmurs and the soft thud of her hooves against the counter.

"Almost... almost... FUCK!" he bellowed, his balls drawing up tight against his body. His cock pulsed violently inside her, the head flaring wider as he hit the edge. "Here it comes! Take it! TAKE IT!"

Derpy barely noticed, too focused on the muffin in her hooves. "Ooooh, thish one has... eeee... shprinkles! Shiny... shparkly shprinkles! Derpy lovesh shprinkles!" she chirped, her tongue darting out to catch a stray crumb from her lip as Whooves began to empty himself deep inside her.

Derpy just kept eating, bouncing happily on his cock, her floppy ears flopping, cheeks flushed and eyes crossed in muffin heaven. “Eeee! So many shiny golden ones! This one’s the shuper special… mmmph… yay! Muffins! Eeee! More shiny golden ones! This one has the bestest fruit filling… mmmph… and this one’s got double chocolate chips… derpy’s the luckiest pony! Eeee! Yay! Muffins! Eeee!”

Her pussy gushed around his cock, hot and creamy, squirting out with every slap of his hips. The mound of muffins in front of her grew smaller as she kept chomping, but the bakery counter was already soaked with her juices and his leaking precum. Whooves reached up, grabbed one of her pendulous teats through the thin dress, and squeezed hard, pinching the stiff nipple until it throbbed.

“Take it, you dumb muffin bitch,” he grunted, voice rough and desperate as he railed her faster, deeper, harder. “Your sloppy muff’s sucking me in like a vacuum… gonna breed you till your belly’s all round and stuffed with my cum… while you eat every last muffin in the place!”

Derpy squealed around her mouthful, “Eeee! So many shiny golden ones! This one’s the shuper special… mmmph… yay! Muffins! Eeee! More shiny golden ones! This one has the bestest fruit filling… mmmph… and this one’s got double chocolate chips… derpy’s the luckiest pony! Eeee! Yay! Muffins! Eeee!”

Her body shook with every thrust, ass rippling, tail flaring, and her pussy clamped down like a vice, milking his cock with rhythmic squeezes. The blue hourglass in his cutie mark spun faster, white motion lines streaking his rear as he pounded her relentlessly.

“FUUUUCK! GONNA CUM!” he bellowed, burying himself to the hilt and erupting like a dam breaking.

Thick, hot, endless ropes of his cum blasted straight into her womb—pulse after pulse, so much it felt like he was flooding her. He pumped and pumped, over twenty heavy spurts, maybe more, the sheer volume making her belly swell slightly as his hot jizz filled her completely, overflowing around his shaft in creamy white rivers that poured down her thighs and splattered onto the counter and the endless pile of muffins. His cock twitched violently inside her, milking every last drop as she came too—hard—her whole body shuddering, squirting around him, but her mouth never stopped moving.

“Eeee! So many shiny golden ones! This one’s the shuper special… mmmph… yay! Muffins! Eeee! More shiny golden ones! This one has the bestest fruit filling… mmmph… and this one’s got double chocolate chips… derpy’s the luckiest pony! Eeee! Yay! Muffins! Eeee!”

He stayed buried deep, twitching, the last thick globs leaking out around his cock and dripping onto the muffin pyramid below. Derpy finally finished her imaginary treat, let out a long, bubbly sigh, and looked up at him with dopey, crossed eyes and a massive goofy grin, tongue hanging out.

“Eeee! So many shiny golden ones! This one’s the shuper special… mmmph… yay! Muffins! Eeee! More shiny golden ones! This one has the bestest fruit filling… mmmph… and this one’s got double chocolate chips… derpy’s the luckiest pony! Eeee! Yay! Muffins! Eeee!”

Whooves pulled out with a wet pop, letting the last massive rope of cum dribble out onto the counter, and grinned as his cock started hardening again already. He grabbed her hips and pulled her back down onto him in one smooth motion, sliding right back in with a fresh wet *SCHLICK*.

“More muffins, huh?” he growled, voice all rough and filthy as he started pounding her again, the *PLAP PLAP PLAP* sounds louder than ever. “Alright, you silly muffin whore… but first I’m gonna fuck that cum-stuffed muff of yours till you’re babbling ‘yay muffins’ every time you cum. Now open up for more, muffin slut!”

And the bakery filled with the wet, sloppy, obscene sounds of Derpy’s happy bouncing and Whooves’s relentless pounding, the air thick with the smell of fresh-baked muffins, creamy cum, and pure dumb muffin bliss. The tower of muffins in front of them grew smaller by the second, while her belly stayed just a little rounder, and Derpy kept chomping happily, completely unaware that her womb was already overflowing. The bakery owner would never believe what had just happened in his shop, but for Derpy, it was just another perfect day filled with the sweetest, shiniest muffins in the world.