Clandestine

by Archy

Rating: mature
Tags: Original Character, Fetish, Random, Slice of Life, My Little Pony: Friendship is Magic
Length: 12348

Merc, a very well trained Mercenary has a BIG problem after a job.

When Merc is hired to steal a very odd and suspicious looking vial from a secret laboratory, it is not very long before her curiosities get the better of her.

Trade for anon! Story commissions are currently closed.

Please note this story contains fats, feeding and excessive weight gain leading to immobility.

Cover art from artstation.

Published 2022-01-11 19:30:01 UTC
Last updated 2022-01-11 19:30:01 UTC

Clandestine

Concentration was always the key with any thievery. Right now, Merc was concentrating extremely hard. This was the easy part, removing the outer ventilation shaft grate to get inside, the difficult part was going to come once she actually got in.

‘Be careful out there won’t you?’ her partner had said to her before she left for the evening. She was always so worried about her doing her line of work. ‘I don’t want to come home one day to find an officer waiting for me to ask me if I know a Mercedes Cobbler.’ she had finished with. Merc smiled to herself, at least she cared.

By trade Merc was actually well, a Merc. Mercenary if you wanted the full title, but she had gotten to the point over years of taking jobs where she just may as well be a full time thief now. Plenty of clients wanted things stolen much more often than a gun for hire. Her skills had been easy to transfer to this line of work. She supposed just with her name lining up perfectly almost with the job title it had stuck. Friends in the business always called her Merc the Merc and it was now such a thing it was almost impossible to shake off at this stage.

The grate was coming off anyhow, it didn’t take too much stress with her tools to remove it. The air shaft was easily big enough for a pony of her slender physique to get inside. Part of the job was being fit, able to squeeze your way into tight spaces and quick on your hooves. Merc also happened to be a Pegasus pony so whenever it was needed, she could apply a little dash of speed to get out of a developing situation.

The air duct she was now in creaked slightly as the weight of her body made contact with the floor. Ceiling mounted, Merc could feel the breeze coming down the shaft. It was late so all she could hear was the hum of equipment that had been automatically set to run and the light gusting of the air that was making her coat bristle slightly in the wind. She squinted through a few grates in the side of the duct, there were no obvious signs of movement. The only lighting that lit up the room was from the instrument displays of machines. Merc gave her head a nod, the night vision goggles which had been perched on top of her head slid down to improve her vision.

Tonight’s target from the specifications the client had provided was nothing more than a small vial which they seemed to want very badly, enough to pay her rush fees and a bonus fee on top of that. Supposedly according to their information, tonight was going to be Merc’s only shot to get her hooves on it, as the item would be gone tomorrow. It was being moved, or worked on. The client had provided a somewhat grainy photo of it too. Merc was looking for a vial, filled with purple liquid. It looked like a rather poor excuse for an energy drink to her. The client however had been very insistent that this was what they were after. ‘It has...expansive properties you wouldn’t believe.’ they had said. Merc had just nodded at the time. She didn’t care what was in it, she just cared she was being paid a boatload of bits to get it.

Fssshhhhhh!

She always checked air ducts for any alarms. The usual way was to roll or throw a small smoke bomb down it where the light from the beams would then be visible. There was nothing, it seemed here they took security for granted.

Merc had done her homework anyhow, she knew where the vial was being kept. The client had provided plans and through a quick study of them, Merc discovered this shaft led right into the room it was being stored in. How lucky, and rather a little too convenient.

She felt the air around her change, the duct seemed to be passing into a warmer part of the facility. It was getting a little too warm for Merc’s liking, luckily she wasn’t far away now from the target. She knew exactly where she was from the study of the plans, just a few more feet and yes, there it was… An exit vent.

Merc was careful once more, making sure to prop the vent inside the duct so she could put it back in a moment once she had grabbed the vial. She quickly scanned the room. Nothing stood out, the mare unfurled her wings and flew down to floor level. The room was clearly separated on purpose from the rest of the building and was rather small. They seemed only to keep samples in here. Merc removed her goggles to see as there was some light being generated, which wasn’t natural.

The entire room was bathed in a purple glow coming from the singular vial she had been sent to steal. It was resting in a singular vial rack on a bench in front of her. Another quick scan, Merc couldn’t see anything that was going to prevent her just taking it, which she did.

Big mistake.

As she lifted the vial out with her hooves, Merc felt the glass of the vial pulling backwards. Too late she had noticed practically invisible wire holding it in place. She tried to drop it back into the rack before it set anything off, but it was too late.

She heard a hissing noise and looked down, the floor was starting to fill with a toxic gas, the same purple colour as what was in the vial. There was only one thing for it, grab the vial as the trigger had been set off already and then make for the exit duct as quickly as she could.

Second big mistake.

Merc should have just gotten out of there and abandoned the vial, but her stubborn thoughts about not disappointing the client held her back. As she went to grab it, she felt the effects of the gas overcoming her and before she could say goodnight, her eyes closed and her body slumped to the floor, knocking her out cold.

-

‘Merc? Can you hear me?’

Merc coughed a little, quickly she felt a glass of water at her lips which she swallowed without thinking. Her last memories of passing out were coming back to her and she nearly panicked, but relaxed when she suddenly saw she was in familiar surroundings. A familiar hoof rested on her mane and stroked her as the other tipped the water for her to drink. When she finished, she turned her head to see her. Gadget Gear was looking over her.

‘I can hear you… w-what happened.’ Merc asked her.

‘I don’t know, I heard the doorbell ring and you were just left there, no sign of whoever dropped you off. You were fast asleep so I hauled you in… which was a job in itself, did they torture you with food or something?’ Gadget asked her. Merc just looked at her, rather perplexed.

‘Tortured me with food? What on Equestria are you…’ Merc started to say, but as she shifted her body to sit up and face Gadget, there was suddenly a struggle against a whole lot of weight that hadn’t been there before. She couldn’t have been out more than a few hours, it was just starting to get light outside but in that short time, it seemed against her will Merc had packed on rather a lot of pounds.

Her once slim physique was utterly ruined as a large, wobbly stomach now rose up into her eyeline in front of her. The mare thought she was sitting on two of the couch cushions, but looking down this just turned out to be an extra generous set of thighs and even more ballooned set of flanks that she couldn’t quite take her eyes off. That figure she had worked so hard to maintain and keep small so she could do her job was gone. It had been replaced by a body which was hers, but to Merc it felt like her head had been taken off her original body and then transplanted onto the body of a rather obese pony. She tried not to cry out in shock, instead her eyes just widening as she watched one of her many new fat rolls wobble as she moved.

‘The vial.’ was all Merc said, turning to Gadget.

‘Vial? Oh is that what you went out late last night to steal?’ she asked. ‘What happened?’

‘I went to grab it from the rack it was in and the room filled with a gaseous form of whatever was in it. Did it...do this to me?’ she queried, almost to herself.

‘Either that or you went sleep trotting through the candy section of a supermarket.’ Gadget giggled. Merc shot her an unamused look.

‘It must have been. If it did this to me as a gas, imagine what a concentrated vial of it in liquid form would do!’ Merc exclaimed, she suddenly felt as if she had gotten away lightly, even though her body was anything but now. In the middle of trying to work out exactly what had happened, she felt one of Gadget’s hooves on her belly and her mind quickly wandered to her words.

‘You’re so soft though! I don’t know if it was such a bad thing that happened in there.’ Gadget teased her. The jostling of her stomach that her partner was now enjoying as she rubbed her hooves over her fattened belly wasn’t helping her concentrate, in fact the next query suited Merc’s form down to the ground.

‘Got any food? I’m actually kinda hungry…’

-

‘It’s dark.’

‘That’s why you’ve got the night vision goggles Nova.’ came the reply down the earpiece, in a somewhat sarcastic tone. There was a sigh accompanied by it too which made Nova roll her eyes.

Nova Trap could hardly see in front of her, which is why at the moment of declaring it was dark had dropped the goggles in front of her eyes to be able to see. The voice of Merc was the one sarcastically ribbing her in her earpiece. They were good friends, they had been for years. There was a local hangout for people in their profession called The Safehouse which was somewhat of a dive bar, but the name was enough of a giveaway to tell you the sort of ponies who made it their regular spot to go to, plus the drinks were cheap. That was where they had met, over a few ciders, swapping stories of their deeds. Nova didn’t make friends easily, so it had been refreshing to find another pony like her where the pair had just clicked. To that end, sometimes when the job called for more than just one pony to carry it out they had each other’s backs. It was a fair deal, split the profit fifty fifty and everyone trotted away happy. This time was different though, Merc had enlisted Nova to help her and it was a solo job.

Merc had… changed, not for the better. On the few times she had managed to haul herself out to The Safehouse Nova had noticed she had been heavier every time. The last time they had met Merc had barely managed to squeeze her massive frame into a wall mounted bench made for two. Nova had felt like a twig compared to her overly bloated friend who now was starting to have trouble securing jobs as apart from using her body as a giant battering ram to get into locations, anything subtle or that required an athletic physique was out of the question. That is when Merc had realised (although in explaining it to Nova, she seemed a bit on the fence about actually wanting to go ahead with it or not) that what had happened to her was the result of a chemical effectively and she had a solution to turn herself back into her old slender self.

So that was where Nova was now, sneaking her way through a laboratory in the industrial sector of town. Merc had the building layout and was providing directions to where the formula, which was apparently stored in nothing more than a test tube, was located.

‘So you wanna keep going straight, should be an access door to the inner lab. Watch for traps.’ Merc said as Nova sneaked and snaked her way around test benches and machines designed for scientific work. Nova could use any sort of spy gadgetry, but things like this were just way above her head. She had no idea what any of it did and she just decided that it was best she didn’t know either.

‘So why am I doing this again?’ Nova asked quietly through a mouthpiece.

‘Because I...munch … think we can use the chemical to...crunch ...reverse the process. You need to grab that vial and bring it back to...chew … me.’ Merc was explaining.

There were distinct breaks in the response from Merc. Nova rolled her eyes to herself once more, she wasn’t completely sure if what she was hearing was what she thought it was, or if it was just breakup in the audio quality. Each of those noises though sounded like it was Merc eating something. It was somewhat distracting. With all that chomping and chewing, Merc had lost her way in between the lab machines.

‘What am I looking for in here?’

‘The inner lab access...snarf ...door.’ Merc replied, another piece of food being swallowed broadcast over the microphone. Nova continued to follow the directions as best she could, trying to ignore the noises coming through to her earpiece.

Back at home, Merc was keeping an eye on plans and making sure Nova was staying on target. A query came down the microphone from Nova.

‘Are you seriously eating?’

‘Don’t worry about it, just...chomp …keep heading where I tell you, alright?’

Merc was taking up quite a large portion of the couch where she had positioned herself to support Nova. Her monitoring equipment and laptop was positioned resting on her stomach which had grown considerably since the initial dose of the formula. She was just hungry, all the time. Being hungry all the time meant that you were naturally going to put on a huge amount of weight which is exactly what had happened. It was easy for Merc and Gadget to get as much food as the pair needed, the spy industry paid very well and even though Merc was struggling with work for the moment, they had plenty of savings to spend on whatever food she wanted. In fact around Merc, there were likely twice as many bags of chips and other various treats over the spy equipment she was using to help Nova on the job.

It likely wasn’t helping either that Gadget seemed to be rather taken with Merc’s new physique. To say she had fallen in love with it might be a little bit of an understatement. The two loved each other sure, but in recent years it had definitely gotten to a comfortable stage where the pair were just happy to be around each other. Now with Merc being so gigantic, it seemed to have reignited Gadget’s passion to treat her and treat her she was. Gazing over the mound of her belly and spy equipment, Merc could make out Gadget entering the room with all her levitation magic clearly being used to carry as many plates of delicious looking food as she could bring. Immediately, Merc felt her lips moisten as she stared at the food, then to Gadget.

‘I know you’re busy helping your friend on a mission, but I figured you could use a little snack!’ Gadget giggled, knowing that she had brought in would be considered far more than just a little snack. Little snacks did not contain entire cakes, baked pies and what would be considered several meals for a regular pony.

‘Gadget, I’m really busy. Nova needs me for this.’ Merc started to complain. She still had some resistance to being brought lots of tasty treats. However it was...difficult always to concentrate. The few bags of chips she already had were keeping her satisfied and allowing her to concentrate while she ate. It was going to be a huge distraction not only having to eat all this tasty food but also having Gadget in the room with her.

The past few weeks had been like this for Merc, what with Gadget being reignited in their relationship to provide for her. Merc made sure she was fed of course, but often she didn’t have to. Gadget didn’t just provide all the food she could possibly want, but she fed and paid attention to her as well. Merc let her get on with it, she was enjoying having so much attention as well as getting all this delicious food brought practically straight to her waiting maw. Gadget of course enjoyed it too, not only feeding Merc whatever she brought but pampering her at the same time. With a mouth stuffed full of pie Merc could feel Gadget working and rolling her flab with her hooves, gently and lovingly getting into every little fold and crevice she could, letting her gently ease her way around her body. It was a little distracting, generally the pair were alone and Merc could just indulge herself as much as she liked, but right now she was trying to concentrate on Nova and she suddenly realised that a full minute had passed without her answering.

‘Are you still there Merc? I said I’ve made it to the room with the vial in. Purple right?’ came the query down the earpiece as Merc suddenly snapped herself back to concentrating on the job at hand. She quickly chewed down what Gadget had fed her and tried her best to reply, before Gadget could push another piece of pie between her lips. Merc however, did fail to disguise the rather delighted huff from Gadget playing with her blubber which she carried on doing.

‘Huff… Yes, purple. You see it?’ Merc asked her. She was concentrating so hard on being fed, enjoying herself and making sure that Nova did her job that she completely failed to notice her and Gadget were being watched… in their own home. Unknown to the pair, a small camera was monitoring the whole thing, tucked away in the corner of the room.

‘Great, looks like they tied some wire around it like you said. Removing it for extraction.’ Nova replied. Merc watched as she carefully took the wire off and removed the vial from its rack, right as Gadget fed her another slice of pie and started to go to town again on her folds.

‘Package retrieved, I’ll see you shortly. I’ll contact you if there’s any issues.’ Nova said. The line went dead. Merc huffed again.

‘We’ve got a little time until she gets here, I think you need another slice of pie.’ Gadget teased, watching as Merc chewed on the current piece and swallowed it. Did she really want to go back? To give this up? The feeling she had right now was pure bliss, not only all the soft, hefty blubber covering her body but with Gadget giving her all the attention she could possibly desire. The feeling of those attentive hooves rubbing and squishing all over her sensitive areas… it made Merc shiver.

Gadget was right though, they had a little time to enjoy each other's company until Nova arrived with the vial. Might as well enjoy it, right? Merc huffed again as Gadget dug deeper into her blubber, feeling it jostle around and wobble. She wanted more of this, oh yes…

-

‘Dinner for three?’ Merc asked. She didn’t know Gadget had penned her a fancy invitation for a night out, much less put it in an envelope then given it to her. They lived together for Celestia’s sake. Gadget could tell by the look on Merc’s fake she was slightly thrown by this action.

‘Yes, to celebrate a job well done. I did one for Nova so it seemed fitting to do one for you two, blubber thighs.’ Gadget giggled. Merc just blushed. It was a nice gesture, she wasn’t going to pass up a meal anyway.

‘Do I need to wear anything formal?’ Merc asked. Gadget just shook her head.

‘It’s a little fancy, try to find something if you can. I’ve got a cart coming to pick us up shortly.’ Gadget replied. Merc decided to just go fancy casual, it was okay to slob about a little at home out of sight of others but she figured she better make at least a little effort if the two were going out on the town, especially with company. The trouble was, hardly anything fitted these days.

Eventually however, she was ready. The clothes, well, they were holding for now. In a few places, hidden from prying eyes she could feel her blubber trying its best to force its way out against weakened stitching. She was careful getting into the carriage with Gadget, the entire thing leaning rather comically to one side under her weight as the two made their way downtown. Merc had observed the poor stallions at the front eyes go wide as she got inside, right now as they hauled her and Gadget along, they were huffing heavily trying to pull all that extra weight.

Eventually much to the relief of the ponies pulling them, the cart pulled up outside the restaurant Gadget had booked for the evening. She could see Nova was already there, leaning up against a concrete pillar in a rather fancy dress. Merc had never quite seen her so elegant. However her mind was quickly distracted by the scent of food emanating from within the establishment. Already before she had even gotten out of the cart, her lips were moist with saliva. Her and Gadget got out the cart which righted itself and sat even once more. A rather posh looking concierge pony met them at the front entrance.

‘Good evening ladies. Table for three?’ he asked. Merc saw him quickly scan them, lingering a little on her and then going to his list of reservations.

‘Yes, under Gadget Gear.’ Gadget replied. The concierge just smiled and asked the trio to follow him. Merc couldn’t wait to get inside and order. What should she have? The smells were giving her the impression the options were endless. Maybe she wouldn’t have to choose…

Her thoughts however were rather rudely interrupted, the entrance to the establishment wasn’t quite built for ponies of Merc’s size. She felt her stomach brush the sides, but her even wider flanks? That was quite clearly going to be a no go without some sort of help. She was right in the middle of the party. Gadget in front and Nova behind. She heard a sigh from Nova.

‘Am I going to have to push?’ she asked, flatly.

‘Please?’ Merc asked a little meekly, this was a bit of a public spot. She had noticed immediately as soon as she had gotten herself wedged the eyes of the other diners had come to rest on her. They had stopped their meals as they watched this amusing display as one pony pushed and the other pulled the blubber form of Merc through the door. Eventually, with a slight crack of the wooden frame giving way Merc found enough space to get through, slipping forward as her belly cushioned her. Gadget and Nova both unfortunately found themselves falling to the ground. The trio got up and dusted themselves off.

‘Elegant entrance Merc.’ Nova scoffed. Merc just grinned nervously. Gadget or the concierge didn’t hear it.

The trio were shown their table and the concierge left them to go back to the door. Merc apologised for the damage. He just smiled before leaving.

‘Nova you have a look at the menu and get seated. I just need a word with Merc.’ Gadget said. She could see Merc was feeling a little uneasy after that entrance.

‘You okay?’ she asked her plainly.

‘Fine... I guess that just reminded me of what has happened to my body a little.’ Merc explained. The thoughts of ordering everything on the menu like she had before were now looking a little shaky. She wasn’t sure if she should. She could still see other diners breaking from their meal to look at her before going back to it. At least she was feeling that way, right up until a couple of plates passed their table carried by a waiter and the saliva returned. ‘Nope, I’m fine. Don’t you worry about me. Can we sit down and order please?’ Merc asked. Gadget just smiled and nodded.

‘Ah…’ Gadget said, she looked at the table the concierge had brought them to. ‘I am pretty sure I specifically requested it wasn’t a corner booth. They must have thought that was what I wanted…’ Gadget sighed. She played it off rather well, she didn’t think it would be a good idea to straight up tell Merc this is exactly what she had requested, especially after that display. It was, like the door, certainly a chore to get Merc into her seat. Thankfully it was a large bench-like corner couch around the table in the corner. Gadget got herself opposite Nova, Merc was sort of hanging off the edge crammed in as best she could be. She was pressed up rather a lot into Nova who she could feel pressing into her blubber which was spilling into the free space. Gadget was as close to Merc as she could be, easily within reaching distance. Thankfully they wouldn’t be there long, not only was there an extensive menu but Merc noticed there was a set price buffet as well. She immediately opted for that. Nova and Gadget ordered themselves each a meal from the menu instead.

‘You stay here… not that you’re moving Merc. I can fill your plate from the buffet.’ Gadget said. Merc smiled. She left to go get a plateful.

‘So, managed to get anything out of that vial I got you yet?’ Nova asked, making small talk.

‘Well, look at me Nova. I think the answer to that is no.’ Merc replied.

‘Clearly.’ Nova said, eating another mouthful. ‘Gadget doesn’t seem very inclined however to get on with curing you.’ she carried on.

‘Well, she’s been busy. She works too, you know.’ Merc replied. It was a bit of a thin excuse, she could tell Nova hadn’t bought it.

‘Uh huh. Here she is, that’s quite the plateful.’ Nova said. She wasn’t kidding, it seemed Gadget had just asked for them to fill the plate as much as possible. There was that saliva again. Without any hesitation Merc dug in, Gadget helping her by using her magic to push the food towards her mouth. Shockingly quickly, before either Gadget or Nova had really made a dent in their meals, Merc’s was gone. She let out a little quiet belch of satisfaction.

‘I’ll be right back! It was an unlimited buffet.’ Gadget said, disappearing to go get Merc’s plate refilled.

And that was how it went all evening. As soon as Merc was done with a plate, Gadget went right back to the buffet and had it filled again. It was hard to refuse, in fact Merc didn’t. She just saw Nova looking at her all night with a mix of wonderment and confusion as to how she was packing all those calories away. With each bite, another few pounds went onto Merc’s frame. She was feeling quite stuffed inside the booth, spilling out more than ever into the free space nearby the table.

‘Uhm slight hitch.’ Gadget said, returning on trip number fifteen with an empty plate. ‘They’re out of food, but making up more. Just be patient.’ she said with a smile. Merc could see she was telling the truth, a rather lazy, almost post-meal coma glance at the buffet confirmed it. The staff were working rather hard to refill the empty buffet. She had really eaten that much that quickly? Maybe she could empty it again.

As soon as they reopened, Gadget went up for another plate at the protest of Nova who was practically now being forced out of the booth as Merc grew. ‘Seriously Merc, that’s like plate twenty. Haven’t you had enough? I’ve had to move around three times already.’ Nova said with a sigh.

‘Just ignore her, you keep eating until you’re full dear.’ Gadget said. Merc heard Nova huff with annoyance.

‘UuuuUUUUuuuRRRRpppPPP!’ Merc didn’t even try to stifle it, despite it being a fancy place she just couldn’t hold it in. So much food… Her whole body quivered, the seat protested at the sudden and violent wobbling of her flab. Nova actually jumped a little at the sudden eruption. Gadget just smiled.

‘Guess you are full.’ Gadget said with a wink. The place was by this point, mostly empty, the other diners had left to go home. It was very late. In fact apart from a few lingering patrons fascinated with watching Merc gorge herself, there really wasn’t anypony left in the building bar the staff. As Merc let herself settle, a waitress approached.

‘If you want to order dessert I’d advise you to do it soon, we’re closing shortly.’ the waitress said.

‘Just the biggest cake you have, we can share it.’ she said. The waitress just nodded and left them for a moment. Merc needed it, to process all that food. Sheer gluttony at its finest. She had never felt so stuffed before. Before long however the waitress returned. Merc wasn’t sure what it was about them, they just looked… odd. Out of place somewhat. She left the cake and the bill, which Gadget took.

‘I don’t think I can eat anymore after watching that display.’ Nova just said.

‘I think Merc should be able to manage it then, go on, eat up.’ Gadget said, cutting Merc a rather large slice and before Merc could protest, lovingly pushing it between her lips. It was chocolate, the most divine chocolate Merc had tasted for some time. So smooth, almost creamy. She eagerly ate it despite feeling so full. But suddenly, her feelings changed. She wanted more. More! What was in that cake…

As she chewed through each slice, her stomach tried to protest but something was preventing it doing so. Merc glady ate each and every slice Gadget offered up to her lips, the mare making quick work of it within mere moments as each delicate piece of cake was devoured. Before long, she had eaten the entire cake and before closing time too.

‘UUUUUUUUURRRRRRRRRPPPPPPPPPPAAAAAaaaaaaaaaaaRRRRRRAAAAPPPPP!’

If the first belch was uncontainable then this one didn’t have a chance of being stifled. The cake, laced with some of the formula had given Merc an added edge to really bring a practically restaurant destroying belch forth. It was as if a small earthquake was shaking the plate. Nova grabbed onto Merc’s flab, just for something to hold onto. Even Gadget looked surprised. She wasn’t quite planning on that to happen, but it happened.

‘S’cuse me.’ Merc said with a heavy blush. Her blubber was still wobbling about from the sudden outburst. The entire restaurant staff and remaining guests seemed well, dazed. As if the release of gas had done something to them. Merc was just starting to ask Gadget if everything was okay, when she suddenly felt her stomach rumble again.

Blooooorrrrrppppp!

A final gift from the cake, a sudden explosion of weight as the formula did was it was designed to do. Merc felt her body expand and push against Nova. Gadget was forced out the booth. Nova wasn’t quite so lucky, she ended up squished under Merc’s expanding belly and squished under several hundred pounds of rapidly growing stomach. It wasn’t just Nova who felt the brunt of the sudden gain. The entire booth, barely holding together as it was failed to keep the blorpy mare in check. Merc crushed the table and the large seat, everything being destroyed with an incredibly loud crunch that made her ears ring. The problem was, with the expansion, Merc was hungry again. Suddenly, she had space in an even bigger belly to fill. She only wanted to ask Gadget one question.

‘Did um… they say they were closing? I could go for another round at the buffet.’ Merc said. Gadget grinned, but even she knew with all this damage, it was likely best to get out of there before the staff came to from their daze. Also before the bill for damages arrived. Hastily, finding Nova protesting under Merc’s blubber, the three quickly made for the exit.

-

‘You know we really should have looked at this sooner.’ Merc said. Nova had dropped the formula off days ago. Merc had intended to look at it almost right away but Gadget well, had been Gadget. The mare had been finding different ways to keep her distracted and from getting to work on it. Mostly food related ways. Every time Merc had suggested starting to give the thing a look, Gadget had brought up some reason not to. ‘But I just baked you another pie!’ or ‘Awwww, but these cookies are fresh out of the oven!’ or the like. It was… difficult to refuse eating them. Especially when Gadget put up such a pout when Merc started to say no. So of course she ended up eating them to please her.

At that moment, Merc heard her stomach give off a loud, hungry grumble. She had for the first time just gotta Gadget to start concentrating on the formula with her, but it seemed that was enough to distract her right back to the kitchen. ‘Well it sounds like I should have baked you a pie sooner, judging by that complaint from your belly!’ the mare said, giving her belly a little wobble with her hooves before vanishing before Merc could protest. She just sighed and decided she would get back to investigating it herself for the time being.

At this point, Merc was struggling to move. They had ‘borrowed’ some equipment to look at the formula themselves with a little advice from a scientist friend. It was why Merc needed Gadget and her Unicorn magic, she could actually move things around easily. Merc looked forward to her incredibly flabby hooves which hardly now even she was able to lift up. It was such a struggle to move such a massive weight and this was just her hooves.

Her belly bulged beneath her, it was actually a struggle to think back when it didn’t slide its way along the floor under her as she moved. Her flanks were... generous, was the best way she could describe it right now. Massive orbs that wobbled and were rising over the back of her head as she gained more and more pounds. She’d have wiggled her tail, but even movement on that was restricted, most of it wedged now between her blubbery butt that she was actually having to put some effort into to stop it touching the ground also. If she moved just a little too quickly, she’d feel her cheeks brush the floor with every laboured step she took.

All this just made Merc mad. She handled the vial in her hooves looking at it, starting to mutter to herself.

‘How could you do all this to me. I was slender! A body perfectly sculpted for Mercenary work. Now look at me! I’m the lardiest blob probably in the entire of Equestria! What mad pony put you together and what even madder pony wanted to steal you!?’ Merc huffed to herself, rather frustrated that she just couldn’t put two and two together. Right now all she cared about was finding out what it was made of so she and Gadget could work on some way of reversing all of this. The mare’s ranting frustrations to herself continued, with her curiosity getting the better of her, she popped the cork covering the top of the vial. ‘All I was hit with was a gas form, not even this liquid stuff and look at what it did. All these gelatinous curves, these wobbly flanks, this belly bed that is soft and comfy…’ she trailed off, even Merc realised her words were changing. Frustration was turning into acceptance, maybe even admiration? She couldn’t lie and say even though the attention from Gadget sometimes was frustrating, she loved it. That moment where every little bit of her felt so...alive with pleasure and the more of her there was, the more she felt it. ‘How did a mere whiff of this do it?’ she continued to wonder, her curiosity getting the better of her. She took a sniff from the vial in her hooves.

She coughed a little, the mixture was extremely potent. More so obviously in a liquid form. Fumbling with her hooves a little, Merc quickly replaced the cork on top of the vial and placed it back in the rack, but already the effects of her tiny sniff were having an effect.

Her whole body started to… fatten. In front of her eyes she could see her flabby hooves get flabbier, extra rolls forming on her stomach. She couldn’t see it, she was a little too large at this point to really turn her head and get a good look, but behind her she felt her rear legs wave a little while flag as they lost the strength to hold her flanks up which met the floor with a blorph! If she was wearing any clothes, they would have likely exploded off her. Nothing from her wardrobe however came close to fitting her and it was unlikely with this development it ever would again. She let her body rest on the floor as the formula worked, adding pounds and pounds to her frame wherever it could. The entire time, all Merc could think of was how she wanted… more? She wasn’t sure if the formula was having an effect on her, but she knew she didn’t want the gaining to stop. Her thoughts swirled in her brain.

More… more… more blubber, more of me… this feels so good… I want more…

These thoughts were interrupted when she smelled pie being brought into the room. It was lucky she had already placed the vial back in the rack, all she had to do now was play innocent.

‘W-what happened! You’re nearly twice as big!’ she heard Gadget exclaim from somewhere behind her folds. Merc was so big now, she could hardly turn her head to see her until Gadget came around and placed herself firmly in her vision.

‘N-nothing! The formula is still in its vial, see?’ Merc stumbled, pointing as best she could with an amazingly flabby hoof to it, but giving up after a few seconds due to the effort involved.

‘Nothing… sure, well then if nothing happened, I bet you’re not hungry for this delicious pie I baked you.’ Gadget teased. It was too easy for her to get to Merc with food now, even trying to hide her shenanigans with the vial, she couldn’t hide her hunger.

‘N-no, I’m hungry for it…’ Merc started to say, her stomach letting out another greedy growl. ‘Is that all you made? I-it might not be enough…’ she carried on. She saw Gadget grin.

‘Is that all I made, pffft.’ Gadget laughed. ‘I was gone a while for a reason you know, as if one pie is going to satiate all that.’ she said, magically cutting a slice and pushing it between Merc’s lips. ‘There’s several of these, plus plenty more that I bet you can eat you greedy, curious glutton.’ she teased. Merc could already feel her starting to work into her folds as Gadget magically levitated food towards her, Merc immediately diving into it. She didn’t care about hiding her hunger, she was so hungry that if it was being given to her, she was going to eat it. Hiding her true actions be damned.

As she gave into the food, the attention and everything she was feeling, the thoughts of working out a counter formula slipped from her mind as did any attention she was paying other than to herself. If Merc had looked up slightly, she’d have seen a tiny little camera, set in the corner of the room observing the pair, watching as Merc completely gave into her desire for more of everything.

-

It seemed for once that Merc had managed to get Gadget to focus. Oh well, what was the saying? Eleventh times a charm? Something like that.

It had been more than difficult to get Gadget to commit to this. Every time the pair started to work on examining the vial either Merc or Gadget got completely distracted and food was always involved. Merc was too weak to refuse generally once it began. She was as complicit in failing to get this formula analysed as Gadget was, but neither were helping each other.

Today though, Merc was focused on helping Nova out on a mission of her own while Gadget worked away at the vial. That wasn’t to say Merc couldn’t indulge herself. She had plenty of food after all. Her attention was half turned to Nova, while the other half was deciding what to have next. Should it be the extra large bag of chips, or the seventh pie? Decisions, decisions…

She also had up on screen a take out menu for a new local fast food place that hadn’t been open very long. She had heard about it from Gadget, a somewhat interesting take on fast food where the portion sizes were incredibly large to suit big ponies. Even the smallest portions were as large as the largest at places she ordered from on a regular occurrence. There it was again, that saliva. Even though she was eating, just looking at what was on offer was making her hungry. She wanted this mission with Nova to be over as soon as possible so she could get an order in.

‘Can you hurry this up? You’re keeping me from putting in an order you know. It all looks so good…’ Merc moaned down her microphone to Nova. Her words were met with a sigh.

‘I know Merc, but you’re meant to be helping me for a change. I know you wanted to get a bit of extra cash for yourself but so far all you’ve done is send chewing noises down the mic and complained that I’m being slow. This is a delicate operation. Can you focus? Please?’ Nova pleaded. There was a pause.

‘...Fine, next left, access junction A.’ Merc said.

‘Thank you.’ was all Nova replied. There was radio silence.

Merc took the opportunity to put an order in while she was waiting for Nova to speak to her again. She had a few moments she thought, so she ordered a few extra large meals. She may have gone a tad overboard with the amount, but it just all looked so delicious that the mare couldn’t help herself.

As she finished, Merc heard something that wasn’t coming from her head set.

Ding dong!

Doorbell. Gadget was concentrating on the formula, it was best not to have her get distracted. Merc, with plenty of effort hauled herself out from her seat (the snacks she was eating filling the void as gravity did its thing, bags of chips falling into where she had been sitting) and then started to slowly waddle her way towards it. As she moved she swore she heard a voice.

‘Merc? Merc I’m at the access junction. Where do I…’ but the noise was drowned out as Merc shifted her immense weight towards the door. Every step an effort as her bloated body wobbled its way just that few steps towards it. The final hurdle was always squeezing herself down the thin (for Merc) hallway towards the door.

‘Is there somepony at the door!?’ Gadget shouted from the lab.

‘I got it!’ Merc replied, making sure Gadget stayed put. Finally after quite a lot of wheezing, wobbling and effort Merc made it. Lazily, she scrabbled at the lock and opened the door. She didn’t think the food would have gotten here that fast, but delivery firms did pride themselves on service…

To her surprise, it wasn’t the order she had just placed but it was certainly a delivery. Merc scanned the delivery pony. She looked somewhat familiar but Merc couldn’t quite place her. It was as if she had seen her recently, but her mind wasn’t joining the dots as to where. In any case, she could see the pony was quite taken aback. Behind her was a cartload of food.

‘What? Never seen a pony fill a hallway before?’ Merc grinned at her, pushing her flabby stomach and wider flanks up against the walls for effect. She saw the mare smile.

‘Only one.’ was all she replied. She saw that just the simple act of moving had tired Merc. Her whole body still wobbling, the mare huffed and puffed in front of her, sweat dripping from her brow as she struggled to compose herself after her little display of blubber. There was a distinct smell too, as if all that wobbling had dislodged something among all that fat. The delivery mare dared to think what might be lurking in all those rolls. ‘Anyway, I have a delivery for you. Enjoy.’ she said, tipping her head at Merc and leaving her with the cart.

Although moving herself was indeed a chore, size meant that moving other things now often came with ease. Merc could simply press her weight against it. She had no trouble shifting the cart to the front door and upending the contents into the hallway. She left the cart outside on the street. Somepony would collect it later.

Using her belly, she then pushed it all back down the hall into the living room. Her soft fat ensuring that nothing was damaged in the process. In front of her, she now had a small pile of food to enjoy. Merc planned to eat it later, but as she went to return to her seat to get back to Nova, something familiar entered her nostrils. Something that drew her to the food that was now piled up on the floor. Merc just couldn’t help herself…

Merc dove right in. There were pies, both savoury and sweet. Endless puddings, cake. All of it so good. She couldn’t stop herself once she began, shovelling every morsel of food into her greedy maw as fast as she could. There was something about it. Something familiar that drove her to eat as much of it as she could stuff in her mouth. Every bite was heaven, every morsel added more weight to her already bulky and blorpy frame. She was so consumed by her eating, that she hadn’t even noticed the sound of her stuffing her face had gotten the attention of Gadget. Nova was long forgotten, the calls of her ‘Merc! Merc! Are you eating again…’ going completely ignored as she pushed in as much food as she could as quickly as possible.

‘Just couldn’t help yourself could you, you big greedy glutton.’ Gadget teased, not wasting a second to start teasing her.

-

‘You can eat more piggy, stuff your massive fat face.’ the words came from a shadowy figure. It sounded like Gadget but all Merc could see was somepony who she couldn’t quite make out feeding her. The mare was veiled, but as soon as a hoof came forward with food, the food suddenly came into the light and was revealed to her. Every piece looked heavenly and every bite was even better. Copious amounts of food were being brought her way, more than she could fit in her maw. Greedy, slobby chunks of pie were dripping down the side of her fat rolls as the mystery feeder kept teasing and presenting more and more food. With every bite, she felt her body pile on the carbs and calories that the rich treats were packed full of. Eating...eating! So much that her rolls were coming into her vision, that her blubber was piling up around her until eventually, everything went dark, her flab had buried her in herself. There was nothing but fat surrounding her vision and then… a snort?

Merc woke up rather abruptly. It had all been a dream. Laying on her front (getting on her back was pretty impossible at this point) she just stared into darkness. She was still all there, still the same fat mare she had been when she closed her eyes. Even now it seemed though, her dreams were of gaining weight, that one was rather vivid. Her mind was becoming consumed by it. Things too seemed to remind her of just how big she had become in such a short space of time. Merc shifted her weight slightly, the bed protesting with a rather loud creak. Her and Gadget occupied it, Merc taking up probably a good ninety percent of the space herself. She could feel Gadget clinging to her blubber so she didn’t roll off the side.

The dream occupied her thoughts though. It was everything she desired and more. To be so large, soft, warm. Consumed in your own blubbery prison on warmth felt like it was the ultimate gluttonous act. The formula in the vial played into it too, and the need for more food. It seemed like her stomach woke when she did, perhaps some food would help settle her mind and let her go back to sleep? As quietly as she could (with a couple of extra creaks from the struggling bed) Merc shifted her weight so she sort of slipped off the side and then began to shuffle her immense weight towards the door. She was impressed she managed all this without waking Gadget up, who had just rolled towards the divot in the middle of the bed.

Stealth was no longer an option for Merc, she had been so good at it not long ago too. The bedroom was located upstairs and the kitchen on the floor below. There was no way she was doing this quietly either, luckily she had shut the door behind her (with some effort) so that Gadget didn’t wake up. Their house was reasonably sized, but even with a somewhat generously sized stairwell to get down, Merc was still finding her sides easily pushing their way up against the wall, her massive wobbly flanks squeezing their way down the stairs as she went. Her stomach was practically rolling down each step, a light thump as the flab hit the next step as she shuffled her way down, making her whole body wobble as the fat failed to stay stationary as she moved.

This whole issue with any sort of sneaking on Merc’s part was just the way it was going with her increasing mass. Everything was somewhat of a struggle now to get in and out of what would be reasonably sized spaced for reasonably sized ponies. Merc had quickly become anything but a reasonably sized pony. Even spies needed to go grocery shopping and while the life her and Gadget lived afforded them some luxuries, they couldn’t quite afford to hire someone to bring them food. Besides, Gadget loved baking, so it was always a good excuse for her to go out and get ingredients for the many cakes she loved to cram into Merc. Right now, Merc was feeling exactly how she felt a few days ago when they had gone shopping together. The aisle’s in these stores were always made wide enough for at least two ponies to pass each other with shopping carts without coming close to one another. For Merc well...the entire time she had just felt her whole body brush up against both sides of the aisle. A few items of food had gotten loose and been knocked over by her rolls. Nothing breakable, Gadget had quickly placed them back. But the entire time, any shoppers who saw her had just stared at her, it had made her blush with such a rosy red on her cheeks Gadget had actually asked if she had been okay, with Merc replying hastily with a ‘Fine, fine!’ as they carried on their way around the store. Everything had been unstealthy, obvious even. She was the biggest thing in the entire store and she knew it, as well as all the staff and customers. Especially Gadget, who had just teased her and told her that they were obviously jealous of her. But every little squeeze and squish now, as she quietly tried to make her way down to the kitchen reminded her of that encounter in the store, as well as a few others where it had gone that way. She was trying her best to be silent but with so much mass to account for the mare had her work cut out for her.

Eventually though, she made it down and into the kitchen with minimal noise but maximum jiggling.

There it was, the fridge. Clumsily Merc pushed it open with a greedy hoof. She didn’t even stop to think, her stomach cried out in hunger as if she hadn’t put anything in it in a year, even though it had only been maybe a few hours. All she wanted to do was eat...eat! Everything inside the fridge was quickly vanishing. Stored cold meats, a few pies here and there, a rather large helping of cake that lasted all of five seconds. Merc was an unstoppable eating machine, her jaw action putting any pig to shake as in no time at all she had practically chomped and chewed her way through most of the contents of the fridge. She loved it, feeling her body expand more and more as the food did its work to add to her bulk. But as wonderful as this all was, it wasn’t enough. She wanted more. Merc knew what the answer was, it was sitting in a test tube vial in the next room. Her thoughts turned to the formula.

It was getting harder to move now, emptying the fridge had pushed her belly to a point where it was a few more pies from lifting her hind legs from the floor. Merc was on the cusp of immobility. She couldn’t wait to feel what total immobility was going to feel like, how those useless legs would sink into her belly folds…

A few huffs and puffs later, she finally made it into the makeshift lab that her and Gadget had set up to analyse the formula. There it was, practically calling to her. With some care as to not spill it, Merc pulled the lid off and sniffed the air above where the cork was. That was all it took, just a smell and the effects quickly took hold. Her ass fattened, her belly pushed out beneath her, her folds grew more numerous. Merc couldn’t help it, all her mind wanted was more and more. She took another sniff… and another… another.

Every time she did as little as fill her lungs with it the potency of the formula did its work. She felt new folds form beneath her legs, more blubber on her wobbling ass. Her tail became more and more consumed by those fattened ass cheeks until eventually it was totally sucked in between her blubber flanks. It was becoming difficult to simply hold the vial near her nose, her massive, flab-filled hooves struggling to keep a grip on such a tiny delicate piece of glass. Her cheeks bulged in front of her eyes, fat filled her vision. It was just what she wanted, she didn’t want to stop.

Her thoughts as she stopped sniffing for a moment became more rational. Merc had been lost in the heat of gluttony. She had given way to all her wants and needs. She was still loving every second of all of this, but as her thoughts were becoming somewhat normal again she had another contemplation. If a mere smell of the formula was enough to pack on all those pounds, what would happen if she simply drank the liquid? She was having trouble keeping it held close as it was, might as well finish it up no? The last rational piece of her mind was telling her no, this was a terrible idea. But she ignored it, tipping the vial up into her greedy maw and sucking down every drop of what was in the vial. She was about halfway through when her ears picked up the flick of a light switch and a call in a familiar voice. Her midnight snack had not gone unnoticed. She could hear Gadget calling her name.

If Merc had been paying attention, she’d have felt a small prod in one of her folds. The camera that had been watching her the entire time she had been working here with Gadget had just gotten a little too close, the operator curious to see just what effect drinking the liquid down would have. Clearly, a little too curious. The camera vanished unbeknown to Merc into one of her numerous, extremely thick folds, never to be seen again.

‘Ohhhhhhh…’ Merc for the first time let out a little moan of pleasure. She couldn’t hide it, even though she was trying to be somewhat stealthy. The concentrated form of the formula was amazing. She was feeling ten times what she had felt just by sniffing it and gaining ten times as quickly too. Her blubber quickly filled her vision, she felt her massive, fat filled belly press up against the wall, her massive counterweight ass sink in deep to her belly bed and brush against the ceiling of the room. Her wings, long ago useless, were even fatter now, sitting on her back as a reminder of how she had lost the ability to move anywhere under her own power. The gain was practically explosive, the mare sinking into herself as plush blubber filled as much of the room as it could and Merc sank inside it. This was… amazing. The final thought of any sneaking in the near future left her mind. Why try to hide herself? She should be proud of all this, all her glorious tonnage. She’d show herself off to the world. Use her blubber as she saw fit. Let her massive meaty rolls and balloon-like flanks ripple and wobble for everypony to see as she got even bigger, even fatter! More and more was all she wanted.

‘Merc? Oh...gosh.’ was all Merc heard Gadget say, she couldn’t really see her, too much of her own fat was in the way. Clearly she had come in and seen the utterly immobile mare, trapped in her own fat, nothing more than a ball of lard taking up much of the room. It was only when she felt Gadget’s hooves on her fat rolls that she knew she was moving closer. ‘Are you… okay in there?’ she heard her ask, Gadget had positioned herself as close to Merc’s head as she could get. There was not much closer she could really be.

‘Mrrfffff…’ Merc managed to reply. Speaking was now difficult, her lips were so bloated it was a struggle to get out any form of words. She saw Gadget smile though.

‘You big glutton. I knew you wouldn’t be able to resist, falling further and further from grace to gluttony hmmm?’ she heard her tease, giving her blubber a gentle smack with one of her hooves. Merc felt her whole body wobble. She was hardly in a position to protest or stop her. ‘Well you’re not making it back up to bed tonight, or any night! I can’t sleep alone either…’ she carried on, somewhat with a teasy, soft coo that in amongst all that blubber, made Merc blush. ‘I guess you’re my new bed.’ Gadget giggled, sinking herself into one of Merc’s many gelatinous rolls. ‘Now what shall we do about you tomorrow hmmm?’

‘We can… discuss that later.’ Merc managed to reply, five words exhausting her, she could already feel her eyes becoming sleepy. Any movement, even moving her lips was an effort. But every bit of her body felt so wonderfully warm and soft. If she had to stop moving even because of all this, so be it. She’d make up for it in other ways that she’d benefit from. She was reasonably sure as well Gadget wouldn’t be able to keep those greedy hooves of hers off her blubber. She seemed to love it even more than Merc did, who had quickly come around to enjoying herself now. As she thought about all this, she felt the effects of so little energy overcoming her. Before long she was snoozing, with Gadget resting on top of her.

-

Another day, another dark and gloomy science lab. Nova was getting sick of all these places. It seemed every time that Merc wanted her help now, she ended up in one of these. This one was different though, it had come from a lead and finally, Merc was sure this was the spot where the formula had been originally put together. The very lab in which it had been created. To Nova, this lab looked pretty much the same as all the other ones Merc had had her traipse through over the past months in search of things. Lots of machinery about, stuff that was way over her head. She was almost blind to it now, just using it as reference points to mark places she may need to hide or sneak into. This time though, Merc had passed her a name associated with the building, a scientist who worked here responsible for it. Not so much Merc though, she had met up with Gadget. Merc apparently was indisposed. Nova could guess why.

All she could hear in her earpiece was belching and chewing.

‘UUuuuuUUUUuuuuRRRRpppPPPPPP!... chomp, chew, chew, snarf… bwwwaaarrrrpppppp!’

Merc was now fed, constantly. All she did was eat and eat. She was so large now, the entire lower floor of the home her and Gadget occupied had been knocked in to accommodate her size, her massive bulk and blubbery flanks were the only things propping up the upper floor. Gadget made sure she was kept supplied with whatever she wanted. It was only when she slept that she stopped eating. She was only mobile through the use of a massive mobility pad that with Gadget’s last ounce of magic before it became impossible due to Merc’s size, she had been lifted up onto so that she could at least get around by herself. She didn’t dare move however, one little bit of blubber in the wrong place and their house would probably come crashing down on her head. Right now, Merc was looking at the small camera that Gadget had come across a few days later while she was diving about in her rolls. The two had pondered it for a short while, before they had (between eating) managed to back trace it to this lab that Nova was now sneaking her way through.

Merc was hardly paying attention to what Nova was up to, it was rather pointless her listening in at all really. Another gigantic pie passed her lips, gone in seconds, Gadget continued to pay attention to her massive body. Merc could feel her, somewhere around near her massive rear that didn’t seem to stop wobbling these days, even when she was still.

‘BwuuuuurrRRRRRRrrrrpppPPPPP!’

Meanwhile in the lab, Nova had found her target. A set of double doors with a rather ominous purple glow around them looked to be about the right place. She decided to just go for it, kicking them in and throwing caution to the wind, she abandoned her stealthy antics and burst in.

What greeted her was a large chair, with it’s back to her. In front of her, was a number of video screens. All of them showed Merc at various points of her gain. Right back to the beginning when she accidentally opened the vial, up to recently in her own home as she sniffed the vial and then drank it. It clicked for Nova. This was all on purpose and the culprit was delighting in it, watching their formula do its job to Merc who had succumbed easily to it. She couldn’t see them, but Nova was sure whoever it was was still here, sitting right in that chair with its back to her, loving watching all these recordings…

‘Now I’ve got you!’ Nova yelled, jumping forward and grabbing her hooves around the chair. The only thing that came of it though was the chair tipping forward, Nova crashing to the cold floor with it. It was empty. Such a let down, she was hoping for some epic fight between the pair of them but sadly it was not to be.

As she got up, all the screens clicked off for a moment before forming one picture. A pony she didn’t recognise filled them. A little difficult to make out too exactly who they were, there was a shroud around them, preventing Nova identifying any features.

‘Well well, it seems the blubber mountain’s pet agent has finally tracked me down.’ the mysterious face smugly said. It was clear that whoever this was, they were nowhere near by, it was a remote feed.

‘She’s only a blubber mountain because of you!’ Nova shot back. ‘Listen to what you’ve made of her!’ the mare said, cranking the volume up on her earpiece. A loud rumbly belch protruded forth.

‘UuuuUBBBBwwwwRRRaaaaaRRpppPPPP!’

‘Well, it’s lovely to hear my little formula has exceeded all expectations.’ the figure simply said. ‘Merc’s use of it is...regrettable. I had test subjects lined up. That was all before it was stolen of course.’ they sighed. ‘Still, her propensity for such gluttony is better than any test subject I had available. In a former life, instead of being a Mercenary she might have been an eating contest champion.’ the response came, with a slight giggle to it.

‘S-sshuuck it… BwwwWWWwwwAAAaaaRRRpppPPP!’ was all Merc managed to say, her response interrupted by her own gluttony coming out in the form of another rather large burp.

‘Ah, so the blubber mountain can speak.’ the figure replied. ‘Well, I was going to offer you an antidote to all this. No true chemist makes up a formula without something that can counteract the effects, but you were quite rude to me just then Merc…’ the figure said.

Nova’s ears pricked up, she heard the doors behind her bolt themselves shut. In a panic, she turned to try to escape, but scrabbling at the large metal doors was pointless. There was no way out. The room started to fill with a familiar purple gas.

There was little Nova could do. Within seconds, her spy suit was ruined, her body piled on the pounds, multiple new rolls formed overtaking what had been a slender physique. Quickly, she was immobilised and stuck in the room as the gas bloated her up, Nova watching as the mysterious figure just grinned on the monitor before vanishing as they flicked off.

‘I don’t… get paid enough for this.’ Nova sighed, the screens vanishing from her sighed, her vision filled with her own blubber.

-

‘You...slluurrrpppp...look ridiculous.’

Nova was still a little shaken from her experience. Somehow, she had ended up back at Merc and Gadget’s place. The details of her getting there were a little hazy but she had made it, with a few hundred pounds extra added to her frame. She smiled and began to laugh.

‘I look ridiculous! Ha! Look at yourself Merc. Not even food satiates your appetite anymore.’ she said through gritted teeth as she chucked at the hypocrisy of Merc’s words. It seemed Merc had completely given in to well… everything to do with trying to lose any weight. Right now, she was sucking down some sort of mixture directly fed to her via a hose so she didn’t even have to get up for snacks anymore. No doubt Gadget was behind feeding her.

A little time had passed. When Gadget and Merc had retrieved Nova, they had luckily found the vial stuffed in Nova’s newly formed rolls. To Gadget who could still think clearly, it was suspicious that it was in the one place where it wouldn’t be damaged. Merc hadn’t considered it, all she cared about was the next meal.

It had taken Nova some time to recover too. During that time, Gadget had been feeding her to get her strength back up. This had not done her any favours of course, she was definitely heavier than when she had come into the house.

As Merc was about to reply to Gadget, she saw Nova look over at the door. Gadget had entered the room, carrying two vials. Both contained a liquid similar to that of the formula, even down to the colour. One looked lighter however than the other.

‘I’ve done it, at last.’ Gadget said. ‘The antidote.’ she held the vials up, proud of her accomplishment. ‘Nova, here, you’re smaller than Merc, I think it would be a good test to try it on you first?’

‘If you’re sure.’ Nova replied. She watched as Gadget popped the cork off the top of the vial and gently tipped the contents up into Nova’s mouth. There was a moment of waiting, then suddenly Nova felt a sweat. A great sweat that she had never felt ever before in her life, she was still at normal temperature if you had touched her skin, but the mare felt like she was burning up. She nearly panicked, but then she noticed as she got to her hooves that suddenly, it wasn’t a chore anymore. Fat was burning off her at an incredible rate. It seemed the antidote worked, Nova was very quickly going back to her normal size.

Merc watched. It seemed she faced a choice now. The antidote worked. Would she take it? Or did she enjoy this too much. This whole thing, it was more than wonderful. But she was so big now, struggling even to talk properly as blubber fattened her neck and made her speech a struggle. Every breath was a chore. Plus where would she go from here? She practically filled the room now. It was a difficult choice but there was no other. She did have one question for Gadget about the remaining vial.

‘Why does it… huff ...look like the formula?’ she asked.

‘Oh, does it matter? I mean it’s made from it so it will look similar.’ Gadget just replied. Before Merc could ask another question, she found that Gadget was already tipping the contents of the vial into her mouth. She waited for the inevitable. The sudden weight loss that Nova had experienced, but what she got instead was sudden weight gain.

A low rumbling came from her belly, then suddenly, like an explosion of blubber, Merc felt her whole body expand. As she was consumed by her own fat, head and hooves quickly vanishing into a tidal wave of newly forming flab. Had her dream been a premonition of this moment? It seemed not, she saw just as her vision was starting to be filled by expanding fat Gadget grin, she had done this on purpose. She had made an antidote sure, but that wasn’t what she had given Merc.

She felt something vaguely pony shaped grip her practically exploding rolls. Gadget, somewhere on her belly was hugging her as tight as she could. Merc was powerless to stop her body growing beyond all control. Already she could feel herself pressing up against the walls of the room. And she was still growing...growing, growing! Hose still in her mouth, she didn’t dare spit it out. She didn’t know how else she’d satiate an even more immense appetite now she was really becoming blobby.

She felt the walls of the room buckle, creaking against holding back the tidal wave of flesh. Between greedy gulps of what was in the hose, Merc just moaned for more. She embraced everything about her immobile form as the structure of the house failed around her, walls crashing down and the house being utterly destroyed by the fatsplosion as Merc grew. It felt even more amazing, with all the added bulk. She wanted it to keep going…

But then she felt something, a form climbing her frame. It took about five minutes to get to her, due to her size, but through her rolls, Merc finally saw the form of Gadget, grinning sheepishly.

‘S-Sorry… It was meant to uh, be a joke…’ Gadget mewed. She was waiting for an onslaught of insults, but instead, Merc simply said one thing.

‘M-More…’

Gadget was more than happy to oblige.

The ‘structure’, what was left of the house, now mostly Merc, was visible from quite a distance. Merc however was completely unaware she was being watched closer than she thought.

‘You see, the immensity of the power of my formula. This is just two doses.’ a figure at the head of a table said. About ten other ponies filled the room, each one looking to the pony speaking to them. ‘Now imagine what we can do, once we start to distribute it to the population.’ they said with a grin, seeing the rest of the ponies smile back at them.