Horsepower

Story by DamonTeli on SoFurry

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Thomas the stallion wants a bit of a boost in bed and in the gym. So he purchases a high end male enhancement gene modification product. However he soon learns that one should always read the instructions to medical products...

Set in the same timeline as the Virility Plague series these short stories are intended to demonstrate the sex enhancement products Lilith Bio-solutions sells. Expect more short stories of this format. I hope you all enjoy.


The night was cool and calm as a brown furred horse walked down the sidewalk toward a brightly lit block of apartments. It was quite late and not a single fur was about on foot expect him as far as he could see. The only sound he heard was the gentle clopping of his hooves on the synthcrete path along with the whirring buzz of the odd electric car zooming past him. The horse managed to reach his apartment unit and he flashed his right hand up to the rfid reader near the door. A second later the lock disengaged and the door slid to one side to let him though. The horse let out a sigh of relief as he stepped into the warmer air of his humble abode. He gently put the small bag he was carrying on his living room table as he took off his coat and threw it on a nearby chair.

The stallion was quite handsome although a little on the short side for a member of his species. Thomas had a rather fit body, honed from years at the gym, although he still was rather thin all things considered. He was about 5 foot 8 inches tall, and the other stallions at the gym loved to poke fun at him for it. Especially the titanic draft horses who hogged the bench-press stations. Well he figured that he would be able to finally do something about it today. Bodymods were a booming business these days, although they were considered both safe and effective they usually cost an arm and a leg. Thomas had to save for over a year in order to purchase the package resting on his table and he couldn't wait to try them out.

He grabbed the box and gently opened the thick plastic coated paperboard before reaching in and grabbing a tray of what looked like thick patches along with a booklet of instructions. He placed the tray on the table as he opened up the booklet and started to look it over. In big bold lettering was the name of the bodymod. "Horsepower Extreme-Strengh" The cover of the booklet was decorated with the image of a black furred stallion's naked midsection, the model's erect cock was gigantic even by the hefty standards of his species, his dong was so long that the wide flare reached his bloated pectorals and it looked thicker than Thomas's forearm. Thomas gulped, both aroused and slightly concerned about what he had gotten himself into. He managed to stop staring at the pornographic cover art and he opened the manual. The first page was nothing but a bunch of warnings in bold red text, his cortical implant kept asking him if he wanted to read the instructions in any other languages besides English but he quickly dismissed the offer with a thought. They read...

_ Warning: read All instructions before use. Misuse of product may cause unintended side effects and negatively effect health. Lilith Bio-Solutions is not _ _ responsible _ _ for any injury _ _ caused by misuse, misapplication, or tampering with product __ . _

_ You must be 21 years of age in order to purchase or use Lilith sex and body enhancement products. _

_ T he Horsepower ® series is not a species transformation product and will have no effect non-equines. For your equine transformation needs please view our GiddyUp ® line. This product will have no effect on female equines either. Mares should check out our MonsterMare ® __ series for all their female enhancement needs. _

_ Horsepower __ ® is not legal in all areas and jurisdictions. It is the customer's responsibility to obey all local laws and ordinances in regards to body modifications and sex products. _

Thomas looked to the other page which was a primer and the beginning to the content proper.

Thank you purchasing Horsepower** ®! ***We know that you will not be disappointed with your choice. Are you tired of the other studs in the barn looking down at you? Is your cum cannon not a big enough caliber to satisfy your mate? Need to get jacked without killing yourself in the gym for 4 years? Well look no further.* Horsepower** ® ***is an all in one stallion enhancement formula designed to give to the body you have always wanted. Forget about all the other generic male enhancement mods on the market. This is the only* mod** designed for stallions and only stallions! **** Next generation **** species-specific *genomic modification in addition to standard hormonal booster nanites c* reate *truly explosive results! Results are permanent and stable, enjoy your new body without the need for any addition* al ***treatments or boosters.* Available** in three **** formulations, ***Standard, Super, and for the truly adventurous, Extreme. See below for a detailed list of all effects.*

S** tandard**

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Body

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Virility

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Enjoy significant muscular enhancement. Tone, size and fitness all improve significantly. Will result in a taller stature with an average increase of height of about 1.5 feet. Users report improved athletic abilities and find exercise universally enjoyable even without previous experience.

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Size and quality of erection are permanently enhanced as the penis grows over the course of treatment. Overall results depends on user's original size. On average length increases by 5-7 inches, with girth increasing by about 40%

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Libido is boosted permanently as the prostate and testicles are enhanced. Most users report that their testicles roughly double in size over the course of treatment. Sperm count and health increases as well, odds of fertilization greatly enhanced. Ejaculation volume increases significantly, usually each orgasm will produce a gallon of semen. Extra strength equine compatible condoms recommenced.

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Super

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Virility

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Muscular development becomes compatible to a professional equine bodybuilder over course of treatment. Size and fitness is vastly improved. Users on average gain 2-3 feet in height. Users report a consistent need to preform intensive daily exercise in order to relieve tension, leading to even greater size and improved overall health. Athletic performance inevitably becomes that of a world class athlete, especially in regards to raw physical strength and endurance.

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Size of the penis is significantly increased. On average length increases by 12-20 inches. Girth increases in volume by over 80%. Users report extremely hard erections that are both long lasting and difficult to dispel. Users often need to wear restraining underwear in public while they adjust to the improved health and sensitivity of their penis. The penis often becomes partially erect with only minimal simulation.

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Libido becomes greatly enhanced as prostate and testicles grow massively. Users report that testicular volume triples or even quadruples over the course of treatment. Larger underwear may be needed for the sake of comfort. Sperm count becomes unnaturally high and ejaculation volume exceeds the top percentile of unmodified stallions. Ejaculation volume reaches 5 gallons per orgasm or more on average. Semen is much thicker than the emissions of similarly endowed males due to improved sperm count. Users report a need to masturbate and cum at least once every 24 hours to avoid physical discomfort and extreme arousal.

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Thomas turned the page and he was greeted with a huge wall of bold text. Clearly some kind of warning. Although the page's background was of yet another over-sized horse cock so it was rather hard to take it very seriously.

Extreme

*** (Warning. Use of the Extreme series inevitably leads of very significant changes which may disrupt your lifestyle. It's effects are as potent as we at Lilith Bio-solutions dare sell, and are at the limit of what most regulators will allow. Those who haven't considered the potential consequences of taking the Extreme series should avoid it. More details below.

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Muscular development becomes extreme. Going beyond what is possible for the most dedicated bodybuilder, even with the use of conventional performance enchanting drugs. Muscles are flexible and very well supported despite their great bulk. Height is massively increased, 5 feet is common with some exceptional users gaining even more. Users report processing virtually limitless stamina and a level of physical strength usually reserved for industrial machines. Users inevitably become permanently involved in multiple athletic hobbies as intense exertion becomes extremely pleasurable and all discomfort associated with exercise becomes virtually nonexistent. The fitness of the body becomes such that users report having difficulty sleeping if they must abstain from intense physical activity for any length of time. Users are capable of running at speeds approaching a speeding motor vehicle despite often gaining hundreds of pounds of extra weight due to muscle and bone growth.

Users often wear heavily weighted clothing in order to help satisfy their need for exercise while going about their daily business.

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The penis experiences a massive growth spurt over the course of treatment. Exact growth is variable although on average the penis grows 4 feet longer. Girth experiences an even greater increase. On average the girth of the penis becomes 200 % larger. The health of the penis becomes enhanced to a degree comparable with the rest of the body. The quality of erections becomes such that users need to be careful to avoid damage to clothing from erections as the pressure of blood in the penis becomes fantastic. The pc muscles that support the penis also become extremely strong, aiding the penis in archiving incredibly ridged erections despite the added weight of such a large member. The distinctive equine flare becomes wider than what would be expected, even for such a large penis, on average flare width is triple baseline average. Users report needing to use special hyper-friendly underwear. The penis is hyper sensitive. Partial erections occur almost constantly and are often totally unprovoked. This is normal and is an intended effect of the enhancement. Full erections however are almost impossible to dispel without orgasm. Although some users report exercise can help soften an overly excited penis, other users report exercise only results in further arousal, often to the point that users experience orgasm without any penile stimulation during exercise.

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Libido increases by an order of magnitude. Becoming what many would consider insatiable. The prostate swells large enough that the mod must preform a rearrangement of the pelvic organs in order to make room. The testicles experience extreme growth. On average the testicles grow to over ten times their previous size. Sizes beyond that of large watermelons are common. Users report a constant and pleasant aching sensation from their testicles. This is a side effect of improved testicular health as blood flow to the testicles is greatly enhanced. Sperm counts become so high that the consistency of ejaculate becomes similar to paste or even wet cement as seminal purity causes a huge portion of semen to be nothing but hyperactive spermatozoa. Sperm become unusually long lived and can survive inside the vagina for weeks or longer. Pregnancy hazard is extreme. Condoms become ineffective as individual ejaculate volume skyrockets to the tens of gallons. One user reported an orgasm that resulted in an output of 135 gallons after an unprecedented 3 days of abstinence. Users cannot go longer than 6 hours without orgasm without experiencing disruptive arousal and a permanent erection. Wet dreams are common even with frequent release, and become a virtually inevitable if sexual needs are not satiated during waking hours.

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Thomas's cock throbbed in his tight jock strap at the thought of what he was about to do. He had purchased the Extreme formulation and if this booklet was even half right this was going to be even better than he imagined. Enough messing around, he need this in his life right now. He flipped the page as he licked his lips in excitement. He saw the instructions on this one.

Horsepower® is amazingly easy to use! No needles or foul tasting solutions required. Our patented nanotech patches use the same advanced medical technology as high end nano-bandages!

1. Take one of the patches out of the case and peel off the bottom to expose the active bio-interface.

2. Place the patch onto a major muscle group. We recommend the buttocks due to its size and good blood supply.

3. No fancy equipment is required to activate the patch. Simply depress the touch sensitive button until the patch turns green. No insecure or finicky wireless connection needed. That's it! The patch will painlessly fuse to your skin and begin altering your physiology. No special care is needed as they are waterproof and self sterilizing.

4. The effects will take several days to complete. Once the patch is done it will turn red and detach itself from your skin. Once all the patches are spent your transformation will be complete.

Caution do not....

More dumb warnings. How stupid are some people that they need this many warnings? Some idiot probably tried to eat one of these things and his tongue turned into a dick or something. Thomas grabbed the patches and hastily threw them on the table. There were 6 in total, and they were ratherlarge, not like the small patches nicotine addicts use. Thomas tore the protective covering off of each of them before dropping his pants, revealing his characteristically large and round equine booty. He gently placed each patch on his ass, each patch warmed as it adhered to his skin as he activated each of them in turn. With three patches on each of this bubbly butt cheeks Thomas pulled his pants back up as he walked to his bedroom. His cock was leaking a bit although the patches couldn't have been working that fast, he was simply aroused at the prospect of becoming the stallion he had always wanted to be.

Thomas threw himself on his bed. His smart clothing would clean his skin well enough so that he didn't need a shower. He wondered how big he would get during his sleep. He was eager to fall asleep so he could wake up to a larger cock and more muscle on his frame.As he wiggled into his bed he couldn't help be rub his overly eager cock as he thought about what was going to happen to him. However he realized that the quicker he went to sleep the better so he managed to relax and close his eyes. He fell asleep surprisingly fast as he was in a very good mood. It wasn't long before his peaceful slumber was interrupted by his first dreams of the night. And what amazing dreams they were.

Thomas's dreams were filled with sexual imagery. Fat equine pussiesgushing fluid and drooling vast globs of thick cum. Firm equine backsides danced in his head, wide hips and thick thighs tempted him with their vastness. Thomas wanted to breed them all, massive cunts winked open begging him to fill them with his thick cock. Thomas started to buck in his bed, humping one of the plush asses in his dream. His cock started to swell inside his jock strap, hissizable 16 inch equine penis began leaking though his jock and his pants. His smart clothing tried to clean upthe mess at first but it was overwhelmed in a few seconds, clear glassy pre staining his clothing and dripping on his bed. Thomas huffed and groaned, the dreams were becoming more intense, more vivid. He could smell the reek of female musk and he could hear their moans of desire. Desire for him. Thomas's cock was rock hard at this point, his flare visible through the stretchy material of his pants. Thomas rolled on his belly and started to hump the bed, in his mind he was balls deep in the warm pussy of a chestnut furred beauty. He could could smell the scent of her perfume and he desperately wanted nutinside her in order to relieve the growing ache in his nut sack.

Thomas's cock slowly started to grow, the ebony flesh becoming longer and wider as he was consumed bythe most intense wet dream in his entire life. The material of his jock couldn't contain his maleness any longer and it popped off, allowing his dick to tent his pantswithout any restriction. His penis grew larger and larger, it was easily over 20 inches long by this point. His aching balls started to rumble as they too started to expand, growing from about the size of plums to the size of apples, his already compromisedjock tearing is it futilely tried to contain his fattening nuts. Thomas felt like he hadn't gotten off in weeks, months even, hisbed wasturning into moist mire of pre at this point, and even his shirt was halfway soaked with his nocturnal emissions. Thomas's muscles started to flex on their own as they started to grow, his biceps groaned as they started to pack on the pounds. His pecs started to swell as well, their outline becoming more and more visible though his shirt. His thighs, already his most developed muscle group due his equine heritage swelled, healthy veins snaking across their surface as theygrew. His glutes firmed and thickened too, giving him the roundhindquarters of a proud draft horse. His abs tensed as they become more defined, turning his already healthy athletic six-pack into a bodybuilding contest ready heavyweight set of abdominal muscles.

Thomas bucked hard against the sheets as he spine cracked, he was getting taller as well, he gained inches of height in only a few minutes while he obliviously fucked a stable full of mares in his dream.Thomas couldn't take it anymore, his now two foot long dick was all but impaling the mattress, the extremefrictionbetween his rock hard erection and his sheets was wearing out the thin material of his smart pants. It wasn't long before.

_ RIPPPP _

Thomas's new and improved cock tore though his pants. The sensation of his naked cock against the cotton sheets was too much for him to bare. Thomas let out a loud whiny as his cock gushed a thick stream of white virile horse cum, soaking his bed and coming out with so much force that thick globsof it splashed on his bed's headboard like bursting packets of glue. The intensity of the orgasm finally caused Thomas to wake up, he was greeted with a spray seed entering his mouth as his dick kept erupting. Thomas was startled at first but then he remembered the enhancement patches and he purred in lust, happy to bathe in his own semen as he started rubbing himself. He was happy that his money hadn't been entirely wasted as least. Eventually his titanic cock stopped spurting cream and Thomas was able to relax in his bed.

Thomas needed a minute to calm down before he sat up in his bed. As he looked down at his dick he gasped at what he saw. His dick was much bigger then when he went to bed. It was now a little over two feet long, and it lookedto be a good deal thicker as well. His balls were visible though hisdamaged pants and as he rubbed his thighs against them he knew they had grownmuch larger as well. He looked down at his chest and moaned in lust at the size of his new pectorals. His got out of bed and started to flex his thick biceps and grope the his firm thighs. He managed to stop touching his new and improved muscles long enough to pull up his cortical implant's chrono, it was about 7 am. Fortunately it was the weekend so he had all the time in the world. He got out of his bed and walked over to his bathroom. He wasconfused when he saw that his room seemed... smaller, he realized that he must of become significantly taller while he was asleep. He had to duckslightly under the threshold of his bathroom door he was so tall now.

Thomas stepped into hiswhite tiled bathroom and he glanced over at the full body mirror in the corner. Hisjaw dropped when he saw himself. He was huge. His body was a grand landscape of overly developed muscles, hisarms, his thighs, everything was huge. He flexed one of his arms and marveled at the size of his cannon ball like biceps. He knew he had grown taller but this was incredible, he had to be at least 7 feet tall now. He glanced at his groin and he was delighted by the abundance of masculine meat that hung there. His cock was about 2 feet long and it was almost as thick asa condiment jar, enough to satisfy even the most demanding of mates. He pawed at his fat nuts, enjoying the warmth and heft of his new apple sized gonads. He felt very good, and very randy. He didn't know if he wanted to go workout or fuck a dozen mares. This treatment might have been expensive as all heck but damn it was worth it. He gave his arms another flex as he kept drooling over his own reflection. But as he did so he felt like his backside was getting warm. It was coming from the body-mod patches still securely fused to his muscular hindquarters.

Thomas figured that the mod was still going itsthing and he felt aroused by the prospect of becoming even bigger and more virile. Without warning a wave of arousal hit him, the intensity of it was like nothing he had ever experienced before. His titanic mare breaker started to engorge with blood so rapidly that he didn't have any time to think about what was happening before his equine cock was standing at attention, rock hard and drooling a thick flow of precum. Thomas tried to calm down, but the unnatural violence of the lust coursing though his veins caused his hands to grasp at his throbbing vein marked penis and he started to stroke it desperately.The flow of precum turned into a series of spurts as his cock throbbed and swelled with even more blood. The veins on itssurface swelled grotesquely and hisflare expanded. It felt like his cock was going to explode!Fortunately his cock started to grow instead of bursting, Thomas moaned, the feeling of his cock getting thick and heavier in his own hands was erotic in a way that he didn't know was possible. Thomas grunted as his voice became deeper. His muscles getting even larger, his back was turning into a mountainous slabof bulging bulk, his thighs started to rub together as the muscle piled onto his bones. His chest muscles swelled, becoming a pair of bulky pecsthat protruded from his chest asthey ran out of room to grow on his upper torso. His bubbled muscularass exploded in size, fattening with muscleas it pushed out from behind him nearly a foot, the rock hard glute muscles didn't sag at all despite their extreme size, giving him a truly world ending badonkadonk.

Thomas was wide awake but he couldn't help but think about the fat hips of the mare he fucked in his dream. Thomas humped the air as he body kept improving, becoming larger, more muscular, and more importantly even more virile. Thomas's balls roiled in his sack as he felt them become heavier, they groaned as they doubled in size, then tripled, quadrupled. The need to nut inside a fertile maregrew even stronger as his growing balls flooded him with more and more testosterone. Thomas let go of his cock, now starting to become worried, he knew that this mod was called extreme for a reason but this was insane. He gripped the metal tower rack in front of his mirror and was shocked as he felt the solidstainless steel bend and deform like it was nothing but a piece of clay. Stars how strong was this mod making him? Thomas's spine crackedas he started to ascend towards the ceiling, he stumbled backwards, the sudden size change disorienting him, he had become so heavy the floor vibrated as his massive iron hard hooves cracked the expensive tile. Something was wrong. Perhaps he should of read all of those instructions after all. He needed to get out of the bathroom, everything was starting the feel cramped in here. He tried to walk towards the door but he winced as his face bangedagainst the top of the door threshold. He looked up and saw that the top of his head was only inches from the ceiling of his bathroom.

Thomas ducked and squeezed himself though the doorway, his fantastically wide shoulders and chest making it very difficult to get though. Huffing and spraying cum from his still iron-hard ebony cockThomas managed to make it to his living room table, it felt like the table was so far down. He was massive! It felt like his apartment was designed for a child he was now so huge. He had to stoop in order to grab the booklet to the mod. Being extra careful in order to avoid tearing it he turned to the page he left off. Slightlystaining the paper with his cum sodden fingers he looked at the booklet.

Caution do not apply more than one patch to your body at once. May cause an extreme spike in virility, uncontrollable libido, extreme body-mass development, excessive growth in genitals, and radical equine body plan rearrangement. Again Lilith Bio-solutions is not responsible for side effects caused by improper use of this product.

"Oh shit," Thomas said to himself as he clutched his expanding dick.His swelling pc muscles reflexively clenched hard enough to cause his black horse dong to smack against his chest, the still spurting breeding pole spilling pre all over his fat man pecs and shooting some of its fragrant emissions on his muzzle. His pre didn't look very clear enough more, and it reeked of musk. His already heroically huge muscles tensed as he started to grow again. His pecs becoming so huge he thought that they would surely impend his movement, although he found that he could move his armsquite normally. His cock thickened and Thomas moaned, the sensation of his penis getting heavier felt so heavenly he forgot about his current predicament again. He stroked his fat dong, his pre getting whiter and whiter every second. His balls were swelling, the alreadymelon sized balls soon eclipsed his knees, obscuringhis huge thighs, becomingso massive that they threatened to make contact with floor. Thomas neighed in nothing less than sublime sexual agony, his dick was thicker than the thighs of some men and it brushed his pecs constantly due to its length, yet despite its incredible size it remained painfully erect, a spider web patter of throbbing thumb thick veins nourishing his pussy busting penis.

Thomas fellto his knees, he had grownso huge that it was all he could do toavoid hitting the ceiling. His balls felt like they were full of boiling lead, he didn't know it was possible to feel so horny. He started to jerk his dick as hard as he could, considering how strong he had become his dick must of become as tough as the rest of his body. Thick creamy cum gushed from his permanently flared cock head, the musky greasy semen pooled in front of him, forming a sizable puddle. His horrifically potent testicles were producing so sperm that every last drop of pre was forced from his body, leaving nothing flooding his system but fertile semen which sprayed from him. Thomas screamed and arched his back as his dick exploded with a lance of cum as orgasm tore through his body, he didn't even have time to enjoy the sensations or fantasize, his quaking testicles simply wanted to eject their ultra fertile payload in order to fertilize Anyone,** Anything** in the area as the overdose hyper stimulated his entire reproductive system. His cum sprayed across his living room all the way to his exposedkitchenette.

Plap... plap ... plat

His sickening thick cum drooled off of his counter-top and fridge in semi-solid chucks. Seconds later another pillar of reeking foal batter gushed from his now 5 foot long horse cock. The air become thick and foggy as the smell of mud like semen and male musk overwhelmed the air management system of Thomas'sapartment. His balls still felt like they were so full. His orgasm refused to stop, in fact he felt it intensify, Thomas moaned as his orgasms blended together in a way that he didn't think was possible. He could only whimper and pant like an animal as his taint inflated with a terrible power, the muscles responsible for pumping his cum out of his cock fattened to the size of a fist. Moments later the thick spurts of semen turned into a raging unending torrent of virility.

SSSSSSKKKKKKKKRRRRRRTTTTT.....

Thomas's fridge was slammed against the wall by the force of the fertile mudslide. A nova of paste-like cum flew everywhere, shattering glassware, cracking wooden cabinets, and filling the sink to overflowing within seconds, the poor plumbing unable to drain away the flow due to the cement like thickness of his mega fertile cream. Soon the floor of his kitchen was covered in several feet of cum, rolling over itself rather than flowing as Thomas overwhelmed the kitchen with his fertility from over 30 feet away. Thomas kept slowly growing, his body improving, but soon he felt a strange sensation on his stomach. He managed to look down as he saw two fleshy growths burst from his stomach. He gasped in shock although he felt no pain. They looked like... legs? But they had hooves on them. Thomas's ass and pelvis started to thicken but it was different this time, his butt was becoming enormous, not at all proportionate to the rest of his body. His spine started to crack as his butt was pushed further back somehow while the limbs coming out of his stomach become longer and more pronounced. They were horse legs. Feral horse legs. Thomas lost his balance and fell forward as his natural legs started to change, his spine was being stretched out behind him as a new barrel like body started to grow from behind him. His cock vibrated with unholy power and vigor, it lengthened with every beat of his racing heart. But as his ass turned into the hindquarters of a feral stallion he found he was soon unable to reach it. Although even without stimulation his cock kept gushing cum, the change in angle from his penis being effectively slung under him now causing him to flood his living room. His favorite glass coffee table stood no chance against the onslaught of his all impregnating sperm cannon, a burst of cum sent it flying across the room causing it to shatter against the far wall. With more room to grow thanks to his new body plan Thomas's nuts groaned and rumbled as they expanded further.

How big was he! He had friends smaller than his testicles now! The explosion of cum only became more catastrophic as his balls grew more and more potent, producing enough cum to flood every sperm bank in the star sector. His cock was gigantic. It was now as thick as the torso of some men and even with his new longer body it jutted out obscenely from his front legs. As if that wasn't enough the muscles of his feral lower half started to enhance as well, muscle tone that usually could only be born out of years of hard labor on a farm bubbled out of nowhere. This hindquarters became a titanic mound of muscle mass and his forelegs rippled with prize winning definition. Thomas slammed a hoof down on the floor, cracking the tile with his incredible weight. He felt like he wanted to breed an entire barn of mares, he felt like he wanted to pull heavy objects behind him, the bigger the better. Thomas filled the entire living room with his bulk, his head was bumping up against the ceiling now, he was over 11 feet tall at this point. His ankles were awash in cum a yet his person-sized nuts kept filling with more and more seed. They spilled out behind him as they pushed aside furniture due to their fertile expansion. Thomas screamed as a third and final orgasm tore threw him. The area front of him became a lake of cum within seconds and even with his new height he was soon up to his chest in his creamy seed. He had no hope of hearing the frantic knocking at the door....

"Thomas? Thomas! Are you OK?"

Claire, Thomas's girlfriend pounded at the door. He heard his screaming and assumed that something horrible was happening to her lover. The white and brown speckled mare was just about to call fire and rescue with her comm-link when a thick white substance started leaking from the gaps in the door frame. It smelled musky... was that cum? Before she had a chance to react the door burst and a wave of creamy horse seed washed her away from the entrance. It got everywhere and it was so thick and heavy that Claire had difficulty standing back up as they lead dense semen weighed her clothes down. She waded though the mire to see the massive equintaur form of Thomas standing in the living room, his pillar of a dick still leaking cum by the bucket load.

"Thomas! What the fuck did you do? He forgot to read the damn instructions didn't you?"

Thomas's looked at Claire and tried to respond but the mod was still in control of his sex drive. The second he saw the cum soaked form of his lover he felt his nuts start to engorge with kilos of cum, his fat dick bucked and slapped against his belly and his legs as if it could sense a female to swell with young.

"Claire... ru... run."

Claire saw the steady drooling of cum from Thomas's dick turn into a thick series of spurts. She knew what was going to happen. She managed to run out of the door and dive to the floor as a white spear of cum lanced though where she once was. Thomas roared as yet another orgasm took him for a wild ride for several minutes.

Several days later Thomas was finally able to get control of his dick. Mostly. He used most of his savings to buy an industrial cock milker in order to drain the emissions of his overly healthy testicles. It was actually a dark time for Thomas. He was forced to quit his job as he couldn't go longer than 30 minutes without his dick exploding from the ever-present pressure inside his ball sack. Luckily Claire was able to create an alternative income source for him. With a webcam and a bit of production equipment they turned his study into a pornographic cam show studio. And to their surprise the subscriptions for there little erotic show ticked up at a rapid pace. Thomas the Mega Stallion was a huge hit on the net and soon they were able to more than support themselves with this new erotic gig. Although Thomas had an idea of how to make it more popular.

"Monster Mare? Thomas are you sure?"

Thomas handed Claire the mod patches, just like his enhancement treatment there were six of them.

"Imagine how many more viewers we will get if you enhance yourself. I suggest you take them all at once."

"All at once! Isn't that what did this to you?"

"Yes. Please... Claire I need you. If you were a taur like me we could finally have sex. The viewers would go bananas if you could do more than lick and stroke my cock. This milker is so depressing at times."

Claire looked at Thomas's titanic cock, feeling butterflies in her stomach as she thought of being breed by such a massive dick. She was feeling a bit unsatisfied herself lately after all.

"Give me those."

-To be continued?