Student Vs Student

by AstroZone

Rating: teen
Tags: My Little Pony: Friendship is Magic, Spike, Comedy, Starlight Glimmer, Sex, Sunset Shimmer, Slice of Life, Twilight Sparkle
Length: 4008

Starlight and Sunset partake in Twilight's lessons of weight gain. And competition ensues!

Starlight Glimmer and Sunset Shimmer have taken on some interesting lessons from Twilight and the two slowly balloon up to massive sizes. That doesn't stop the rivalry and competition between them though. They both have to prove their worth and show up the other.

Warning: Weight Gain and a whole lot of fat

Published 2016-09-27 03:30:01 UTC
Last updated 2016-09-27 03:30:01 UTC

Class Is Now In Session

Twilight Sparkle’s two newest students, Starlight Glimmer and Sunset Shimmer, sat at attention of their teacher, learning about the wonders of nutrition. Twilight’s opinion on nutrition, however, was a bit skewed from the average pony, as she was dwarfed by her students, each weighing close to a ton in weight. Over the previous months, the two students quickly ballooned up. Their butts widening, causing the destruction of many chairs, benches and beds. Their bellies rumbling non-stop at the need for food as they sprawled out in front of the two unicorns. Their legs thickened dramatically, though they were not much use at their current weight. The two immobilized by their near endless flab were forced at their current location until Twilight used her magic to carry them around the house as necessary; a task becoming more and more difficult for the alicorn.

The most prominent feature of the two unicorns, however, was their expanding chest flab, growing bigger and heavier by the day. Draping over their bellies, the expanse for the two had to be contained by bras fashioned up by Rarity. An odd undertaking for a pony she had to admit.

Starlight and Sunset sat at attention of their teacher as she lectured on about the importance of providing hospitality for a friend when staying for a visit. Sunset grumbled a bit as her chest flab rode up a little into her view, requiring her to push down on them to adjust them. A small belch escaped her mouth before she glanced over at her fellow student.

Starlight sat there, intently listening in on Twilight’s lesson. Sunset couldn’t help but smirk at Starlight’s actions otherwise. All the while listening at Twilight, Starlight had been sitting there grabbing her chest. Giving them a few pokes here, a few pokes there, even on occasion lifting them up entirely to let them smack against her belly when she dropped them. Whenever she wasn’t using her hooves for something else, she was giving her chest a grab and as a unicorn, the need for her hooves came in very few and far between.

“Are there any questions?” Twilight asked the duo, bringing Sunset’s attention back to the lesson. The room remained silent except for the sound of Starlight’s hooves squishing against her chest. Twilight took the answer as a no. “In that case, that would conclude our friendship lesson for the day!” She said as she packed up the supplies for the lesson.

Sunset adjusted herself having sat on her expansive butt for the last few hours. She no longer had a need for any chair, given the cushioning provided by her own plot, plus the fact she had very few chairs, if any that would be able to hold her weight. She magically pushed her chest fat out of the way once again and gave them a grab of her own with her own hooves. She was fascinated by her size, though did not see the appeal to Starlight’s constant groping.

She did have to admit she loved being huge, dwarfing Twilight’s friends as they came to the castle to visit. Seeing just one of her butt cheeks the same size as Twilight was certainly something to behold. Though Starlight’s plentiful plot did have a tendency to encroach in her area.

“Do you think you could stop playing with your chest long enough to scoot over a bit? You’re taking up too much room.” Sunset complained to her blobby neighbor as she felt Starlight’s behind squish into her own. Starlight looked aghast at the suggestion, turning her head away hmmphing to herself.

“I assure you that I do not need to stop in order to scoot over.” She replied, feeling her hooves squish into her chest once again. She magically lifted herself and gave herself a slight push to the side, allowing Sunset’s behind to squish out just a bit further and causing her own chest fat to jiggle in her hooves. She moaned a bit at the sensation, giving her chest just another few pokes.

“Mmmmhh. That’s nice.” The light purple unicorn sighed. She turned her attention back to Sunset with her own smirk. “And what is it that you have against my chest fat? You’re not jealous..are you?” Starlight knew about Sunset’s need to be the biggest. If she wasn’t the fattest or heaviest she got antsy and would tend to stuff herself endlessly until she did weigh the most. With Twilight’s weekly weigh-ins, Sunset was sometimes able to pack on close to 200 pounds in a single week if she’s dedicated to it.

“Pffft. As if.” Sunset rolled her eyes, attempting to cross her forelegs before her own chest impeded their progress. “What’s there to be jealous of when mine are clearly bigger.” She took her fat in her own magic and gave it a jiggle. “Just like everything else about me. Maybe one day you’ll know what it’s like when Spike can climb fully into your belly button to clean it.” Though Sunset knew full well that Starlight’s belly did rival her own and Spike could very easily fit into her bellybutton, Sunset still reigned supreme in that department. She struggled to turn around though to take a look at their once squishing behinds. Unfortunately for Sunset, Starlight did have a much larger butt, sprawling out behind her.

Starlight paid no attention to Sunset’s retort and went back to her chest fat awaiting Twilight’s return. Her squishy, overflowing chest fat. A loud gasp came out of nowhere followed by a few coughs.

“T-that’s the last time I’m cleaning THAT!” The voice of Spike hit Starlight’s ears. Unable to see the young dragon, Starlight still felt his scales squelching from out of her own belly button, to which the sweat covered dragon finally walked into her view and left the room.

“Hmm. Guess he can fit in there, now can’t he.” Starlight smugly said to a frustrated Sunset, while giving her chest another few forceful gropes.

Weekly Weigh-In

Twilight’s grunts and groans echoed throughout her crystal castle, along with the crunching of food and the sound of fat crashing against itself. Twilight didn’t dare look behind her, needing to be perfectly concentrated to carry the mass of pupils behind her.

“Hnnng. I’m quite impressed...girls.” Twilight struggled to say as she felt Starlight drop a bit in her magic, creating another slapping sound followed by a slight moan from her pupil. Twilight blew a trail of sweat away from her eyes. “Only one week since our last weigh-in and you two are quite the load to carry. Maybe I’ll have to bring the equipment...hnnnng...to you next time.” Twilight squealed, mustering all her magic to keep her friends afloat.

“Mhmm” Sunset muttered through her mouth full of cake and pie. Her body covered in sweat from the struggle of moving her arms heavy with fat in order to get her treats into her mouth quicker than her magic would allow. Spike walked behind the three of them with a mop, making sure to mop up the trail created by Sunset.

“Need a little help there...hnnnnnn... Twilight?” Starlight offered to her friend. “I mean, you’re doing grrrreat! But my butt is dragging against the floor, so I figured you’d want some help.” Twilight dared turn to take a look at the blobs behind her and sure enough a portion of Starlight’s behind did sag down toward the floor, creating the friction to make Twilight’s travel that much more difficult. She looked up to Starlight, giving her chest another few grabs and gropes as she asked causing Twilight to shudder a bit herself. Twilight had to admit she was...intrigued by her students growing size and Starlight’s own obsession with her chest. And there was Sunset’s determination as Twilight turned to look at her, stuffing herself as much as possible before being weighed. Twilight can only begin to imagine how much she had gained in the last week, but her imagination would be given that sweet, cold hard data in no time.

“Y-yes Starlight, if you don’t hnnng mind.” Twilight responded. Twilight felt a huge weight come off her shoulder as the strain of several tons of student was helped by Starlight. Twilight took a few breathers as they approached the doorway to their dedicated Weigh In Room.

“Better hope you can get this giant belly of mine through that door.” Sunset bragged through another mouthful of pie and using her own magic to jiggle her sagging, sweating gut.that blanketed over her legs, nearly obscuring them from Twilight's view.

“Don’t worry Sunset, if my behind can get through there then your belly should be fine.” Starlight responded followed by a few moans of pleasure. This only annoyed Sunset further to the point of shutting up and going back to her snack, nearly doubling her intake for the final few minutes before being weighed. “All that sweat there should be able to get you through too.” Starlight continued, only receiving another grunt from Sunset.

Twilight put her two student down on the ground, causing a small rumble in the vicinity as she went in and made sure all the equipment was prepared. Starlight continued to sit there groping her chest, avoiding conversation with Sunset, who wouldn’t respond anyway, given the constant trail of food going in her.

“Alright girls, let’s get you two in here.” Twilight said from in the room as her magic enveloped Starlight. She slid across the floor causing a loud squeaking sound to resonate from it. As she approached the door, Starlight put both of her hooves to her chest and pushed them together to ensure that her chest and belly would make it through with ease, to which she was able to do so. The first obstacle came as her sagging thighs made contact with the door. Starlight winced a bit, but with a quick tug from Twilight, Starlight made it through with relative ease.

“See. You should be fine getting through.” Starlight shouted back to Sunset as she was placed in position in front of Twilight. Sunset’s earthquake inducing belch as a response caused a small jiggle of Starlight’s own flab causing Starlight to make a few extra grabs toward her chest.

The dessert crusted mouth of Sunset made her way through the door, her belly struggling similar to Starlight’s butt to get through the door, but also getting through with relative ease. Another burp came out as her belly was disturbed from being placed down, further signifying Sunset finishing her extra meal. Twilight took a swipe of sweat coming down her forehead from the strain of carrying the two blobs.

“Phew. Definitely going to bring the equipment to you two next week.” Twilight said as she approached Sunset’s belly and stuck her hoof in her near endless belly button and lifted up her belly roll. Twilight’s own shaking was luckily disguised by the massive bellies keeping her out of their view. A quick lick of the lips and Twilight was ready to get to work.

She magically lifted both students a few feet onto the scales awaiting them as she approached the readings. A huge grin appeared on her face at the results, though she always withheld the results until all the weigh-ins were completed to avoid the two from starting their arguing. She grabbed a quill in her magic and jotted down the results.

“Great results from the both of you! Now hnnng onto the ooof individual weigh-ins.” Twilight struggled to get out from having to shift so much mass. After reaching the 1000 pound range in weight, Twilight began to observe her students’ fat grow in particular regions. With Starlight, her weight tended toward her behind and as her constant groping showed, her chest, while Sunset’s weight focused on her massive belly and her face fat. Due to this focused gain, Twilight liked to weigh their individual parts in order to see the growth.

“Would it be okay if I go first Twilight? I’m sure Sunset would like her meal to digest first.” Starlight suggested. Sunset hurrumphed at Starlight in return.

“Yes, let that little twig go. I would assume my belly is too big for that scale anyway. May as well get her out of the way while you can.” Sunset reached toward her belly and gave it a few pokes, her hooves sinking nearly halfway into all the flab. Twilight walked over to Sunset and gave her a once over and again lifted her over to her designated scale.

The scale was easy enough to weigh her belly and butt and Twilight made note of that with her quill once again. Now the struggle of getting Starlight’s chest properly in place. Tipping over Starlight was its own adventure as well as containing her chest on the scale without it sagging off the sides. Starlight’s belly sprawled out to the sides as her butt towered high in the air. Part of her behind tipping over onto her back, causing her number of rolls to double as they tried to contain the two globes from tipping her over completely. When Twilight was satisfied with the placement, she returned to her scale meter and looked at the results. The fluctuating results clued Twilight to something going wrong. Turning around to her light purple student, she saw Starlight grabbing her chest once more.

Twilight sighed as she walked over to her student. Starlight’s groping caused her chest fluctuate and jiggle on the scale, parts of it sagging off and squishing against the floor. “Starlight, I know you love your chest, but can you please leave it alone for a few minutes while I get this reading. We want it to be accurate after all!” Starlight blushed as she gave one last grab and clopped her hooves together.

“Hehe...sorry.” Her hooves hung up in the air, constrained by her arm fat as she used all her willpower to keep her hooves dangling there. Twilight had magically readjusted her chest and went back to her machine. A static reading let her know that Starlight was staying still as she she marked down the result.

“Thank you Starlight.” Twilight said as her magic took hold of Starlight and got her out of the way. Twilight looked over to Sunset disdainfully looking at her blob of a companion.

“You’re up Sunset. Let’s hope your little binge paid off.” Twilight chuckled and patted Sunset’s belly as she floated over and was placed onto the machine. They meticulously went through the process once again, taking each individual measurement, finishing off with Sunset’s endless belly completely covering the scale. Twilight took down the measurement with a bit of confusion.

“These numbers don’t add up.” She pondered to herself comparing the weights she just measured to Sunset’s total weight. She wandered over to Sunset who was too distracted from Starlight’s moaning from the opposite side of the room.

“Sunset.” Twilight said as she poked her student’s belly roll to get her attention. “Can you explain to me how you’ve gained, let’s see here. 50 pounds in just the time I’ve had to weigh Starlight?” Twilight’s question was first returned by a monstrous belch.

“Beats me. Guess I’m just that much better at ga- *urrrrrrp*-ining weight than Starlight is.” She turned to glare at Starlight. Twilight herself raised an eyebrow, not buying into her story.

“In that case, I don’t suppose you’d mind me digging around in your belly button then, would you.” She wandered around the landscape of belly to stand in front of her.

“Go ahead.” Sunset attempted to cross her hooves, but was again restrained by her arm fat keeping them firmly in place. Twilight got closer to the sweaty cavern and plunged her foreleg headlong into it. She shivered a bit as her arm kept going and going deeper into the pit of Sunset’s endless belly button until she met an obstruction. She returned her foreleg and used her magic to lift Sunset’s belly roll in order to gain a better few of what was in there. Her magic flared up as she guided it into the belly button and grabbed hold of the intrusion. She yanked hard to remove it to find a sputtering purple dragon, coughing and wheezing as he tried to regain his breath.

“You owe me *hack* big time for that Sunset.” Spike shouted as loud as his oxygen deprived lungs would allow over the mountain of belly before the two. Twilight sighed as she dropped Spike and allowed him to leave the room to get washed up as she went on to lecture Sunset.

“And how do you explain Spike just ending up in your belly button like that?” Twilight stared at her student as she plopped herself on top of Sunset’s belly.

“I-I don’t know what you mean. I guess he just wandered in there.” She retorted and looked away from Twilight, incredulous at the accusation. Twilight stood up on the squishy mound.

“Yes, I’m sure you don’t know. I would hate to stop giving you your third dinner for a week, if this keeps up.” Twilight merely turned around and hopped off and went back to the scale to re-measure Sunset. Sunset’s dejected look and silence was a clear indicator to Twilight she had gotten the message. The incorrect measure was replaced and Twilight was satisfied by the results.

“Okay girls, great progress this week and I’m very proud of both of you. Now give me just a few hours to create a nice chart for you two and I’ll share the results at dinner!” Twilight exclaimed to her two mountains of student.

Dinner Time

“How can you even eat in that position?” Sunset inquired to Starlight who sat across the table from her. Whereas Sunset enjoyed sitting down properly in order to allow her belly to spread out in front of her and squish into and under the table, Starlight positioned herself on her belly, allow her immense behind to tower high above her and allow her chest flab to sprawl across the table.

“It’s more comfortable this way. And I have better access to the food.” She responded, again moaning as she hit a sweet spot in groping her chest flab.

“Uh huh. Whatever you say.”

The two’s conversation was interrupted with Twilight entering, behind her a large “feast” of desserts trailed behind her as Pinkie Pie followed in pushing the cart. The desserts piled nearly as high as Starlight’s behind and the waft of sugar kept the attention of the two sacks of lard in the room.

“Thanks so much for preparing dinner for these two Pinkie.” Twilight said, taking her own place at the table. Pinkie finished pushing the cart at the other head of the crystal table.

“It’s no problem at all Twilight! You should have seen the meal I made for Princess Celestia and Princess Luna last night.” She giggled with a snort at the condition the two princesses in Canterlot were. She’d never seen anypony eat that much food at once. “Have a nice meal!” She shouted as she turned around and hopped out of the room.

Twilight’s magic echoed through the room as she evenly divided the treats between the two unicorns in the room. And it took no time at all for them to dig in. Sunset’s sloppy eating, causing cake, pies and jelly filled donuts to fly everywhere. Her hooves just barely able to make the trek from her belly to her mouth, though at the rate she was going, Twilight figured her arms would be completely useless in no time.

Starlight’s eating, however, was much neater, using just her magic to eat. Her hooves still plunged deep into her chest fat sprawling across the table. She heard the crystal chairs creaking under the strain of a ton of weight and even the table having a few cracks from the weight it had to hold in food and pony. Twilight couldn’t help but moan a bit at the center of the table where Sunset’s belly and Starlight’s chest made impact, creating squished flab right in front of her. The impact also created a few extra rolls from the squish as the flab had nowhere to go but to fold over itself.

As the two ate, Twilight ate her own meal and prepared the charts she had created in the last few hours to present today’s weigh-in results. The charts were well organized, showing off the day’s results and the comparison to last week’s weigh-in and Twilight couldn’t be anymore satisfied. It’s been the largest one week gain since they’ve began and she was eager to see where they’d go from here on out, especially with Sunset’s competitiveness driving the two of them forward.

Twilight cleared her throat loudly to gain the attention of the two unicorns, who continued to eat as they looked onto their mentor. “If I may have your attention, now that you two are well along with dinner, I think now is the perfect time to present the results.” Twilight continued to speak through the moaning and belching of the students as they ate. Twilight walked over to the drape-covered chalkboard outlining the results. One side covered for Starlight and one for Sunset.

“Now, since we began with Sunset last week, let’s start with Starlight this time around.” Twilight’s magic took hold of the curtain and tore it down in a neat fold in front of the board. The charts and numbers were fully revealed to a very satisfied Starlight. She turned her head up to Sunset with a smug grin at the results.

“Now as you’ll see, Starlight’s behind has increased significantly, with a 10% increase from last week, totally up to 480 pounds...each cheek this week.” Starlight gloated at the results, giving her butt a shake causing her own body to jiggle and vibrate and gave her chest fat a celebratory lift in order to plop onto the table. Twilight went down the list showing off Starlight’s impressive, but improvable 644 pound belly and astonishing 308 pounds of chest fat. Though the real prize was the final result down at the bottom. The large circled number of 2,893 made Starlight grin ecstatically, pleased with the final results.

“Pfft. I can top *brrrp* that easily.” Sunset said to Starlight’s gloating. Twilight went to the second half of the board and showed off the results.

Sunset had improved immensely with the size of her belly, having increased the most between either student by 13% and sporting over 1000 pounds itself. Sunset couldn’t help but pat her 1,051 pound belly as if to congratulate it on its success. Twilight once again went down the list, showing off the the 773 pound behind on Sunset as well as the 249 pounds of chest fat on her.

The further they went down the list, the more Sunset’s optimism waned as she knew the final result wasn’t what she was looking for. Her face dropped as the 2,686 circled was a huge disappointment to her. Her frustration turned to a bit of anger, shocked that Starlight had managed to both outgain and outweigh her this week.

“I know the results may not be what you wanted.” Twilight was saying, mostly to Sunset, “but just so you know, I’m very proud of both of you! You’re both making great progress!.” Sunset was not comforted by Twilight’s words and instead turned her attention to Starlight.

“But how?! How did YOU gain more than me?!” She struggled to lift a hoof and point it at Starlight. “I’ve been stuffing myself all week. There’s no way! *BRRRRRRRRRRRRRRRRRRP*” Sunset stuffed herself with even more of her dinner, the extra vigor going straight into her mouth and causing her sweat output to increase.

Starlight could only smile in return with a few extra gloating squeezes of her chest.

“Can’t say. It’s a secret, Shrimpset Thinner.” Starlight said as she magically stuffed an entire pie into her mouth and daintily chewed it to bits.