Berry Brew turned the sign in her window around from open to closed as the sun slipped beneath the horizon. She took a moment to gaze out the window thoughtfully, watching the amber light slide off the buildings around her. Her shop was tucked into a moist little grotto near the river, moss clinging and hanging from nearly every surface and the stonework eternally wet and in danger of being overtaken by plant-life. Most ponies wouldn’t have liked it, but the climate was perfect for Berry’s work and, well, she liked the view just fine.
She smiled as the light vanished and the magical lanterns automatically came on, the ones nearest flickering a little. Nodding to herself, Berry drew the blinds and locked the front door. Normally she left at least the blinds open, anyone knocking on her door after dark was likely to be both interested in buying something unusual and paying through the nose for it. But tonight Berry was going to indulge a little herself and she liked to be left undisturbed for that.
She flicked on her own personal lantern and carried it with her as she headed into the back of her shop. Had she been a unicorn, she might have been able to float her own personal ball of light around with her. But if she had been a unicorn, she likely wouldn’t have been as skilled an alchemist. And also she would have been smelly, because unicorns are smelly.
Berry was a proud earth pony mare. Her coat was a very dark blue and her mane was a fetching shade of wine red. Her cutie mark, fittingly, was a pair of crossed beaker tubes, one blue and the other pink. Her eyes were a few shades brighter than her mane and often sparkled with mischievous intent.
That sparkle was there now, as she trotted into her workshop, nestled in the back of the squat structure she called home and business. She left the lantern by the door and lit another that hung from the ceiling, illuminating her work space and the tools of her trade. The walls were lined with shelves and those shelves stuffed with both books and all manner of potion ingredients. Pushed up against a wall was a wide table, stained every color imaginable from the sheer volume of the juices and liquids that had been spilled upon it. A slightly less stained book sat on the corner, a quill and ink beside it.
Berry pulled up a stool and sat down at the table, opening the book to the latest page and assessing what was last written. It just said ‘how make cumshot bigger?’ Berry smirked to herself, the posed question likely something she had written while more than a little drunk. Still, it was a question worth answering.
How do make cumshot bigger?
Berry consulted her notes, grabbing the necessary ingredients and quickly grinding and pulping them with her mortar and pestle. She then mixed them together in a small ceramic bowl, setting it over a flame to stew while she returned to her notes.
The currently brewing mixture was a futanari potion. After all, how could she know if she successfully made bigger cumshots without a dick? She could have gone out and convinced some dumb stallion to follow her home and experimented on him, but that would have taken too long. It was quicker and easier to just use herself as the test subject.
As the ‘give a mare a dick’ potion bubbled and cooked, Berry flipped through her recipe book. She had a feeling the answer to her problem was already in here, but she wasn’t quite sure what it was just yet. A virility potion increased the potency of sperm, giving them that extra kick to get in there and properly knock up a mare, but that didn’t translate into a significant increase in the volume of cum. A metabolism draught might do it, increase the speed at which the body produced cum, but that would have to be tweaked to tartarus and back to work properly. And that made Berry consider a new problem: storage. Where was all that extra cum gonna be before it came out?
She flipped through the book until she found her recipe for an elasticity potion. Normally used by creatures wanting to mate with rather well endowed partners. And also when they had to birth the fruit of those matings. It was a fairly simple mixture, one that didn’t need anything aside from combining the ingredients and water. Berry had it done by the time her futa potion had finished cooking.
She placed the two brews in front of her, making a note in her book about what she was doing. After all, there was always a slim chance this would end up killing her or turning her into some sort of horrible rape monster. Which was something she tended to leave off the labels when customers came calling.
With a smirk and a small shrug, Berry grabbed both glasses and knocked them back, one after the other. The futanari potion tasted rather salty, but also undeniably sweet. The elasticity elixir, on the other hand, tasted like rubber bands. Berry shuddered and gagged a little then scooted herself away from the table, waiting and watching as the potion took effect.
Pressure built in her groin, just above her neat little pony pussy, her flesh bulging like something was poking out from the inside. There was a brief, sharp pain, and then a little pony cock burst forth from her body. It grew to full size and shape in seconds. And then kept growing. Berry groaned as pleasure sparked off her rapidly expanding organ, merely the air itself seeming to be enough to excite her. By the time it was finished, it was as thick as her leg and long enough that, sitting as she was, she could give the head a kiss just by leaning forward. The potion, or perhaps potions, weren’t finished working just yet. Beneath Berry’s mare-breaker of a dick, a neat little sack formed, smooth and taunt, each ball about the size of an apple.
Berry realized she was panting and a bead of clear pre-cum leaked from the head of her cock. She grinned and leaned forward, lapping up the sweet-tasting droplet and shuddering at the sensation of her tongue touching dick-flesh. She resisted the urge to grab her schlong and fap like there was no tomorrow. For the moment anyway. Instead, she carefully scooted back towards her desk, grabbing her ink quill and her book and making note of the above average cock growth. Possibly caused by the futa and stretching potions mixing together?
Whatever the reason, Berry put down her quill and went to test how stretchy she really was. She moved her hooves down to her balls and carefully grabbed them. The contact sent another little spark of pleasure through her brain and she giggled as she pulled at her flesh. As expected, the skin stretched with ease and she made sure to jot that down.
Well, now that she could have a plenty big cumshot stored up, now there was just the matter of how to go about getting it. She could, in theory, wait a few days, but that wasn’t exactly conducive to her goal. She wanted a big anime cumshot right now.
Her hooves went to her cock almost of their own accord as she thought, stroking her dick slowly as she weighed her options. She frowned as she drew an utter blank, glancing down at the length of hot meat between her hooves like she expected it to give the answer to her. She pulled and tugged at her hard dick, the flesh having a bit more give than it usually would. As she kept pulling and tugging, she turned her attention to the flared head of her cock. The orifice there opened wider than she had seen it go before. It made sense why, but it was making the gears in Berry’s head turn. She had, of course, stuck things down her potion-grown cocks in the past. And boy did they feel good. She teased the opening with her hooves, wondering if, perhaps, she had stumbled across something new and exciting by accident.
She was stretchier, so logically she could shove bigger and better things down her dick-hole. She licked her lips as she thought of a particularly bumpy dildo she had in her bedroom and how it would feel rubbing against the sensitive inner walls of her cock.
And then she heard a little squeak and rattle, drawing her attention to the small mouse she had caged up next to some books. She had caught the little vermin eating some rather expensive ingredients a few weeks back and, after catching it, kept it rather than toss it in the river. It was to observe if anything happened to the little bugger after it had eaten those ingredients, but nothing observable had happened. Berry had been keeping it well fed and tended to, just in case she needed a live test subject.
An evil grin stretched Berry’s lips as she began to wonder what it would be like to feel the rodent wiggling around in her cock. She quickly grabbed the cage and pulled it over to her table, dropping it down and opening the little door.
“Come here, you…” Berry said in as sweet a tone as she could.
The mouse had grown rather accustomed to her, she had been giving it cheese, and so it was rather docile as she reached it and pulled it out of the cage. She carefully took its tail between her teeth and lifted it up over her dick as she pulled the slit open. The mouse squeaked and squirmed as it was held in the air by its tail, but Berry’s grip was firm until she lined everything up perfectly and let the rodent go.
The mouse squeaked one last time before it fell headfirst into Berry’s cock, swallowed up almost completely, with only its madly flicking tail left outside. The feeling was hard, fast, and intense, Berry grabbing her dick like she was trying to strangle it as a wanton moan came from her throat. She could feel the mouse wiggling like a breezie in a potato sack, its little paws scrambling against the inside of her cock. It didn’t hurt in the slightest, her flesh apparently too stretchy for it to properly scratch her. Berry would have made a note of that had she not been jerking her cock so hard, the pleasure almost too much to handle.
Then she felt the mouse drop a little lower, about half of its tail getting slurped into her cock too. Another throaty moan escaped her lips as more of her body stimulated by the vibrating, squirming creature. Berry bit her lip and peeked at her cock, able to see the little lump where the mouse was just below her flare. If it going just that little bit deeper felt this good…
Berry took a shuddering breath and adjusted her hooves, one below the bulge, another above. Slowly, because she was convinced going any faster would make her entire dick spontaneously explode, Berry guided the mouse further down her dick. It was a particularly obscene facsimile of a snake swallowing its prey, the mouse slipping further and further down her shaft. Berry’s heart hammered in her chest as pleasure coursed through her body and precum leaked like a broken faucet from her dick. The shaft and her hooves were soon slick with the stuff, and her chair was similarly drenched as her cunt drooled and clenched around nothing. A puddle of mixed sexual fluids was forming on the floor and Berry was afraid she might flood the whole building if she kept going for too long.
After what felt like an eternity, a very pleasurable eternity to be sure, the little lump was at the base of Berry’s cock. It was only then she realized she lacked any means to pull the mouse back out. And she wasn’t sure she could squeeze it back up with her hooves. But she was close, so very close, to cumming. And she was so worked up, she felt confident the force of her orgasm would shoot the little rodent right back out.
Berry let go of her cock for a moment, the thing was so hard it stood up by itself, and looked around for a safe direction to angle her dick. However, no sooner had her hooves left her shaft than the mouse made a mad scramble and ended up wiggling the rest of the way down her dick. She felt it fall into her balls, the anatomy of how that was possible lost on her and admittedly not particularly relevant. And then, as a wave of new and wonderful sensations washed over her, Berry felt something shift inside her.
Her balls clenched and churned, the mouse squirming around inside them like it was on fire. Berry gasped, tongue lolling out of her mouth as the sensations traveled up her spine. She felt every little thing the mouse did as her body bore down on it. She felt her balls filling with cum, the process apparently jump started by the mouse’s wiggling. But as her sack grew fuller and warmer, she felt the rodent’s struggles lessen. The thought it might have drowned was but a fleeting notion in Berry’s pleasure drunk brain as her balls swelled up to the size of particularly fat grapefruit.
Her hooves flew to her dick of their own accord, stroking up and down her shaft like they were trying to start a fire. Berry could only groan and moan like a whore in heat as she sped past the point of no return and her orgasm broke over her.
The first cumshot bulged up her cum vein almost painfully and shot off with the force of a cannon, hitting the ceiling and snuffing out the lantern. Berry was plunged into darkness as the hot and thick spunk rained back down on her. The second wasn’t nearly as spectacular, but as Berry slumped down in her seat, the cockhead ended up pointed square at her face and she took the brunt of the load over her face and in her open mouth. She swallowed almost without thinking, the fluid was hot and salty and yet the taste sent an extra thrill through the mare’s blissed out brain.
From there, Berry’s cumshots trickled down to mere ‘pornstar’ levels before ending with her semi-hard cock dribbling on her chest. Berry gulped and coughed, panting as she felt the cum settle in her gut and cool on her body. One eye had been glued shut and the other was starting to sting a little. Berry wiped her sticky face with her equally sticky hooves and fumbled around until she found her box of matches and her backup lantern. She got it lit and took a moment to properly clean her face before taking stock of herself and her surroundings.
Thankfully, her messy exploits had only hit the lantern and ceiling directly above her, leaving her shelves of ingredients untouched. She herself was an absolute mess, as was the chair and the floor, but that was nothing new. Hesitantly, Berry touched her balls, finding no trace of the mouse. She peered around, seeing no evidence of the mouse at first, until she spotted something a little more solid amongst the puddles of spooge.
Slowly, she leaned down and plucked the object up, wiping the cum away until she could see what it was: a skull. A little rodent skull to be exact. Berry’s eyes widened as she realized what this meant. She quickly grabbed her notebook and quill, scribbling down her findings.
Not only had she accidentally given herself a mare-breaker of a dick, but she had somehow given her balls the ability to… well, digest things and convert them into cum. Berry grinned and licked a bit of mouse jizz from her cheek. The possibilities were as unethical as they were deliciously perverse. If she could do this with a mouse, surely she could do it with something larger.
She’d practice with fruit at first: apples, oranges, watermelons. Oh, but Berry had a new goal in mind. Once she was certain she was stretchy enough to do it, Berry Brew was going to see how good it felt to force a pony down her cock.
And she already had a list of cuties picked out...
