Chapters Dear Princess Celestia,
I... have a rather important decision recently.
See, I’ve been pretty annoyed these days about how small my breasts are compared to all the rest of my friends. I mean, even Rainbow Dash has bigger ones than me, and hers are barely large enough to be classified as C-cups, so you understand where I’m coming from.
You should especially understand, right, Celestia? I mean, I’m supposed to be a Princess , yet I’m so small …
Princesses should be strong and imposing in order to conduct diplomacy, but they’re also supposed to be kind and admirable; and for you, Princess Luna, and Princess Cadance, that’s the case, but for me...
*sigh*
Anyway, I thought I could change that with a spell that would make my breasts a bit bigger, but unfortunately, I couldn’t find one in the Palace Library. I know all of the books here, and I read through each of the spell books even remotely related to biology three times with Spike’s help and still didn’t find anything.
That led me to have to send Spike to the Castle of Two Sisters; I was going to go with him, of course, but I already had plans to help Pinkie with a party, so he had to go alone. He did ask, though, if he could just go get Zecora to make a potion, but I prefer the precision and ability to be manipulated that spells have, so he had to go to the Castle. (He was kind of ~~cute~~ grumpy about it though.)
It took him the whole day, but he did eventually come back with a book that had the right spell, though he was really exhausted when he finally got back. So exhausted, in fact, that he barely reacted when I gave him some gems as a reward, and muttered something about ‘vibery’ before going off to sleep. I wonder what that’s about...
Anyway, I cast the spell, which didn’t really do much to start with, but the book told me that was normal, so I just ended up going to sleep.
I kind of forgot about the whole thing the next day, what with the whole party that Pinkie was working on, but afterwards, I bumped into Trixie, who pointed out how much bigger my ‘tits’, as she called them, were. And they were definitely a bit bigger, going from my previous small B-cup to mid C, which excited me, as they were growing quite a bit faster than I would have predicted, meaning that it won’t take too long before I’m your size, Celestia!
That trend continued the day after, which I’m also writing this on, and so now I nearly have triple-D cups! They feel very nice and fitting now, except for how my bras aren’t big enough for them, so they’re chafing quite a bit. We had to go get some new bras for myself from Rarity because of that, and Spike stayed there while I headed back.
I think I’ll keep it at this size for now so that I can get used to it before I continue, and from there, I’m not quite sure… Probably should’ve planned that already...
But don’t worry; I will just after this!
Your faithful student, Twilight Sparkle
Dear Princess Celestia,
Remember how I was saying I wanted to pause at E-cups?
Well, that didn’t quite happen. It seems the spell lasts longer than the book said it would, and so now my breasts are all the way to I-cups. Not that that’s particularly a bad thing, of course, it just wasn’t what I had planned before, ~~even if I told my friends otherwise~~.
And they are starting to feel rather nice, as what was previously a nicely fitting weight is now quite hefty, with their moderate bounces with each step I take grazing them against my shirt making me feel rather warm, especially right below my tummy.
When I had some private time, I started to experiment with that, and found that my vagina was getting very hot and puffy, and beginning to leak some liquid. I then touched it, and it started getting even hotter and leaking even more while my heart started beating faster, though it all felt very good for some reason.
Continuing the experiment, I pushed my fingers inside of my vagina, and it made my entire body feel like it was heating up while something in my lower abdomen started to tense, and I began to moan, though it was higher-pitched and more... elated? than usual. However, it still felt very good–incredible, even–and I couldn’t control my moaning as I pushed and pulled my fingers in and out of my vagina, the heat across my body getting hotter and the strain in my abdomen getting stronger, until...
Well, my emotions were getting a little crazy at that point, so I can’t quite recall everything that happened very well, but from what I can remember, the fluid coming out of my vagina got pushed out with more force and in higher volumes and the tension suddenly went away, though it was more of an explosion than a simple disappearance. All of those sensations felt amazing for some inexplicable reason, and I started screaming out of ecstasy, though it stopped after several seconds, leaving me in an exhausted haze that was very blissful.
The only problem with all of that was my scream was loud enough to alert everypony (and dragon) in the Palace, so Spike, Starlight, and Trixie quickly shot open the door... only for the latter two to slap their hands over Spike’s eyes and blush heavily while looking away. I asked them what was wrong, but Starlight just teleported Spike away and yelled at me for almost ‘exposing him to my sex life’, as she said.
I asked what she meant by that, and she replied the same, leaving us in a conversation that I don’t think either of us understood what the other was talking about. I did eventually notice Trixie’s near-hysterical look, and I asked her about it, which made her break down laughing while she muttered about me being very innocent and not even being a ‘virgin’. She did eventually calm down (somewhat) after nearly a minute before asking me if I’ve ever masturbated before, which I replied that I didn’t believe so, causing her to break down again and have to hold onto Starlight’s shoulder for balance while laughing about me not even knowing what that was, and Starlight herself got an odd mix of humour and disappointment(?) as she looked at me.
Starlight then seemed like she was trying to say something, but wasn’t able to, making Trixie lead her away while shouting back at me to ‘get a life’ (whatever that meant) and closed the door behind her. All of that happened four hours and thirty-two minutes ago, and I still have no idea what they were talking about.
I’m going to have to talk to them later, and possibly some of my other friends to find out what they were talking about, but rest assured, I will find out!
Anyway, my breasts still feel a little sensitive, and certainly too big for my current bra, so I went to Rarity to get another one, though I was only able to get measurements for it as she didn’t have any that size in stock, and she said she would get it to me by tomorrow. I did have to restrain talking about that weird stuff Trixie was saying about masturbation, as I took Spike with me and I didn’t want to talk about that in front of him because of how much of a problem Starlight said that was.
Right now though, I feel my breasts are at a good size, what with their heft and softness along with the tingly pleasure, even if my back is starting to hurt a little, so I think I’ll keep them at this size for a while. Er, if I can that is; last time didn’t quite work, but regardless, I shall definitely try!
…Right after some more experimentation...
Your faithful student,
Dear Princess Celestia,
I... still haven’t managed to stop them. My breasts are so large now that they cannot be classified with the usual measurement system. The best way I can describe them is as small beach balls, though they’re so very soft even with their incredible heft and decent perkiness.
The pleasure I got from them before is so much stronger now, with each little brush of anything against it tingling a lovely warmth across my body and making my pussy start to leak. I have learned the more casual terms around sex recently, and my thoughts are going crazy, my libido being so high now that I need to masturbate several times per day in order to keep even a semblance of control in the rest of my life.
The weight of my breasts constantly reminds me of their prominence, with the hearty bouncing and jiggling as well as the tremendous strain they put on my back, forcing me to get an enchanted sports bra from Rarity that expands as my breasts do in order to keep it all at an even partially manageable level.
Even with that cover, my tits feel so good when they’re resting on a table, which they have to do quite a lot to keep my back strain from getting any worse. Note that I have tried levitation before, but the magical tingling I get across the massive entirety of my breasts just feels too good for me to do anything but thrust my hands into my pussy and masturbate until I’ve orgasmed multiple times.
With the tables though, it’s not as quick to start, though the latent pleasure eventually just makes me have to finish off right there. It’s even worse when there’s others with me, as they can clearly see my pleasure, and that just makes me even hotter and wetter, so I try not to stay around them for too long as I know I’m eventually just going to go off right in front of them and they’ll all see it...
*huff*
I-I know that cause it’s happened before... A-and I came a lot harder than I ever have before with so much juice splattering all over the throne...
My friends don’t remember it though, cause I wiped their memories of it.
Um, anyway... I’ve blocked access to the Palace (with magic to prevent window-crashing and teleportation since I really don’t want anypony getting in here) with only Spike here and the occasional visit from my other friends (and Trixie, who still manages to get inside somehow, and I can’t help but think she still remembers that stuff I removed from the others’ memory).
I do know that I’ve been a little... rough on Spike recently, having him do pretty much everything for me, as I can’t really do much with much accuracy or without getting so horny I have to rush to my bedroom to prevent myself from cumming ~~all over~~ in front of him.
On another subject, I’ve noticed that my breasts have started lactating when I pinch them, which happens a lot when I masturbate, ~~leaving white jets spurting from my nipples during my orgasm, which splatter all over my body and huge tits, making them feel so warm and wet~~–Ah! I mean, which happens only when I’m pointing them straight into buckets to fill them with my ~~sweet, creamy,~~ delicious milk.
Umm, I-I’m sorry for all the crossed-out words; I’ve been writing this letter for nearly an hour and all the recalling of those lewd things are doing strange things to my head...
I’ve been trying to figure out a counter-spell to this ~~lovely~~ madness, but with my massive boobs getting in the way, it’s rather difficult. I also haven’t really asked anyone else to help figure it out, because I don’t really trust that they won’t either screw it up or prank me by making it worse (I think Trixie especially might).
I know that I’ve mentioned Trixie quite a bit, and I think that’s because she’s so... ~~sexy~~, er, confusing , so my mind is constantly trying to solve her.
Right, anyway, I do trust you with creating a counter-spell, so if you can, please help me.
Your Faithful ~~slut~~ Student,
Dear Princess Celestia,
My bra was getting looser on my breasts recently, so I thought their growth was slowing down, but no!
H-he was loosening my bra, just to make me think it was slowing!
I grabbed him in my magic and yelled at him about it.
He, um, s-said that he really liked how big I was getting, a-and that he wanted me to keep getting bigger ~~and bigger and–Gah! No, focus!~~
He also told me about how abusive he thought I was to him, which just... What?!
*huff*
He said that he thought he was just my servant while we were living in Canterlot, as the culture around there seemed to make that a normality.liked doing that!
He, u-um, has also admitted that Pinkie somehow got her hands on some of my milk and now her breasts are starting to grow as well! And now that he knows that my milk makes the boobs of who drinks it grow, he started using it a lot more in my food... a-and I guess that I now recognize that he has been feeding me a lot more.
Um, anyway, when I was yelling at him, I-I think my body was vibrating enough from my jerky movements and powerful yells that my tits started jiggling... a-and the milk started sloshing around inside them and my arm rubbed up against one of them, and it just felt so soft and warm t-that I couldn’t help but think about how good it felt...
~~I-I just, mmmf, o-oh fuck!~~
Oh gosh, I just can’t control myself right now...
*huff*
Um, w-when Spike started t-touching my... ungodly massive tits, ~~a-and firmly groping them and b-biting them, I-I think, h-he just–Mmmmm, FUCK!~~
Uh, I-I think he i-inserted something i-into them at one point, ~~j-just shoving that~~ MASSIVE DICK ~~in there and cumming into my~~ HUGE FUCKING TITS ~~as they just~~ poured ~~milk onto him and I just–~~OH CELESTIA!!!
~~Oh fuck just give me a minute...~~
~~*Huff* *Huff* *Huff*~~
OHHH-H-H-H!! FFF-FUCK!!
OH YES, OH FUCK YES!!!
~~*HUFF* *HUFF* *HUFF* *HUFFFFF*~~
OH FUCK OH YES, OH FUCK–S-SWEET CELESTIAAAAA!!!!
~~*Hufff* *Hufff* *Hufff* *Hufffffffff*~~
U-uhm... s-sorry...
But, uhm, yeah; I-I think he did literally... ejaculate into my breasts...
And... like I said before... with the milk... a-and how it makes ponies’ breasts grow...
Just... do something … I-I can’t take this anymore, and I’m probably going to lose my mind if this keeps going...
*gasp*
S-Spike?
N-no, wait, s-stooooOOOHHHHH-H-H-P-P-P!!!!
Dear Princess ~~Sunbutt~~ Celestia,
O-oh gosh, m-my boobs are so big now...
Uh, m-my boobies are so big that they’ve made me completely immobile, ~~a-and I love it...~~
T-they’re so fucking sensitive too... pretty much anything, e-even my breath , makes me feel so fucking horny... I-I just gotta–Mmph…
It just, a-all of it, just fucking–Oh sweet fucking Celestia… *huff*s-sensitivity , just makes my horn feel like it’s gotta blow up constantly, ~~j-just spray it’s magic jizz everywhere... splatter it all over my tits...~~
*Huff*
G-gosh, anyway... S-Spike has just been fucking my tight little pussy all the time these days... ~~a-and he just feels so fucking good... So big and hot and throbbing, just fucking~~ unloading massive gallons of cum ~~into me...~~
H-he’s also feeding me so much of my own milk, too... w-which isn’t all that hard, ~~unlike his huge drakehood. He’s such a stud, I’m surprised I didn’t notice earlier...~~ g-given how much milk is just covering the place... just fucking drenching the carpet... a-and flooding the basement from what Spike has said...
Probably leaking out of the Palace too, now that I think about it...
Gosh, my mind just feels so fucked from all this titty stuff... I can’t even fucking see anything in front of me ‘cuz of how Celestia-damned huge they are... and they churn and gurgle with the delicious, luscious milk they’re constantly making, just so fucking loudly that I can barely hear anything else...
I just... *huff* I-I can feel them growing too, just filling with ungodly amounts of milk...
*h-huff* *huff* *huffffffff*
Sweet Celestia, I just came again... It just feels so fucking good, a-and it’s pretty much always fucking happening... Just cumming so much, cumming all over...
Ohhhhhh... f-fuck...
I-I’m pretty much constantly pressed into my tits, like, laying into them... ‘cuz they’re so fucking so soft and warm … they feel so fucking good... Just fucking rubbing my milk and cum all over them making them so wet and mmmmmmnnnn...gigantic , that t-they’ll just fucking... cum everywhere, a-all the time...
T-they’re already touching the walls of my huge fucking bed room... It just feels like another bra that I’m just gonna fucking b-blow up … a-and my ungodly tits are gonna be there for everypony to see, and touch and feel and grope …good …
Hm...?
Hey, Twi-slut.
Oh, w-w-what are yoOOUUU DOOIIIIIIINGGG!!! F-F-F-AAAAAAAAAACK YEESSSSSSS!!!!
*SMACK* *SMACK* *SMACK*
*SMACK* *SMACK* *SMACK* *SMACK* *SMACK* SLUT! *SMACK* *SMACK*
FFUUUUUUUUCKK YEEEEEESSSSSSSS!!!! SOOOOOOO FUCKIIING GOOOOO-O-O-*SMACK* *SMACK* *SMACK* *SMACK*
*PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* forever .*PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP*
*PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP* *PLAP*
*Huff* *hufff*
Author's Note
Before reading this, you should know that only the first two letters written by Twilight were actually sent to Celestia, hence her worry.
It seems a couple of the readers already guessed that, but I want to make sure everyone understands exactly what’s happening with all of this.
Letter 7 - Day 31
Dear my friend and former student, Twilight Sparkle,
I have not gotten anything from you for nearly a month now, and I apologize for having been so busy as of late as to not attend to you and your worries. I have usually been more attentive, and, even if you are a Princess and not my pupil any more, I still very much care for you.
Because of that, I am rather worried about you and am sending this letter to check on you; while I would normally go see you myself, I am still deep in some international political negotiations that cannot be delayed. However, as soon as they are done, I shall go and visit you.
Please, reply to this letter as soon as you are able, and tell me of your current condition as well as what happened to your breast enlargement experiment.
Your friend,
Dear ~~Princess~~ Celestia,
I’m sorry for worrying you, Spike and I have just been working really hard to figure out a solution to this mess, and we’ve finally got it.
I’m now at a very comfortable size and am so incredibly happy with the changes!grown quite a lot since I first started on this. Our roadblocks on that adventure are over and now we love each other very much, ~~even–no,~~ especially ~~when he spanks me for doing something wrong.~~
I feel that I have grown quite a lot from this experience as a person, as a friend, ~~as a milk factory,~~ and certainly as a Princess; so much so, that I’m not sure how much more room I have!
All of my friends here in Ponyville are thrilled with my changes as well, and their friendship and love is making me like I’m going to burst!
Because of all of that, I would really like it if you could come over and join us!
I know you’re always so ~~sexy~~ busy, after all, and are always so stressed with your massive ~~tits~~ responsibilities, so I think you’d like some relief when you can stay with us ~~forever~~.
Your Faithful ~~Milk Factory~~ ~~Student~~ Friend ,
Dear Princess Celestia,
Oh gosh, they’re still getting worse...
M-my breasts are bigger than over-inflated beachballs ~~and they just feel so good!~~ Gah! No; they’re really distracting and stopping me from doing pretty much anything!
I just–Mm...! *huff* These things are still getting bigger ~~and bigger and bigger, oh fuck yes, please, so much bigger~~… a-and they’re still so perky ~~yet so soft and smooth...~~, t-that they feel like they’re defying gravity! T-they’re like that e-even despite how incredibly heavy ~~and fat and full with so much delicious milk~~, t-that they are!
A-and they so very heavy~ Mm! No! These huge... t-things are pulling me down to the floor... s-so the only way I can get ~~these massive, luscious spheres~~, t-them , off the floor is to use a blanket and c-carry them with it, u-using my ~~hot, pulsating,~~ powerful, magic to hold it...
~~Ohhh gosh, they’re so big...~~
Um... a-also, the bra that ~~the lithe, sexy~~, R-Rarity made is getting a lot tighter, p-pressing into my huge ~~titties~~ (breasts) and forcing so much ~~rich and creamy~~ milk out of them, making it splatter all over the floor...
Well... ~~Mmm...! Oh, oh fuck! Ohhhhhh yes... *huff* *huff*~~
Um, s-sorry...
Uh, m-my breasts start ~~splurting~~ (ejaculating) so much milk t-that it hits the walls, a-and ceiling, ~~a-and falls down across my massive tits, making them feel so warm and wet and–Ohh gosh, so fucking good...~~
A-and I, um... I c-can’t help myself... so I j-just take the milk a-and drink it... a-and it just tastes so good t-that I can’t stop myself f-from drinking all of it... it leaves me so full, w-with a big bulge i-in my belly ~~m-making it feel so soft and warm, e-even better knowing that I’m filled with so much creamy deliciousness~~~–Ah! Grrrrr…
*huff* *huff*
Uh, m-my sex drive i-is so high now that I have to masturbate s-so much, ~~just cumming everywhere, a-all the time~~~, Nn! …A-and because of that, I-I’ve gotten some ~~huge, thick~~, s-sex toys, h-hoping that cumming harder w-will subdue the l-lust for longer, b-but I don’t think it’s working...
I-I can sometimes keep myself i-in a... flow state, w-where I’m not that distracted by a-all the lust ~~of my gargantuan tits and my friends’ sexy bodies~~… b-but it usually doesn’t last for very long, w-with my massive ~~boobs~~ (breasts) brushing against p-pretty much anything... E-even the hot air that ~~caresses~~ (collides with) my ~~gigantic, soft tits~~ (breasts) m-makes them feel so good ~~and makes me squeeze their plushy heft to squirt out gallons of milk~~–Mm! No; t-they just m-make me have to masturbate t-to get it out of my system...
~~Ohhhhh...~~
U-umm... g-give me a minute...
~~Mmf! Oh yes!~~
~~O-oh gosh, f-fuck! Y-yes, more!~~
~~Ohhh, just fuck me you massive stud! Oh, YES!~~
~~MmmmmMMMMM–AAAAAAAAHHHHHHHH!!!~~
~~*huff* *huff* *huff*~~
~~O-oh, shit.~~
Um, I uh, d-didn’t mean for all that to appear here...
A-anyway, I-I’ve also had some issues sleeping, b-because of my ti–breasts . Er, n-not entirely because of the weight though, a-as I sleep on my front now, w-with most of my body resting of my plush and very comfortable breasts...
A-and with the lust from all of that churning, reminding me of the immense amount of milk they hold, a-and it just makes me want to spray it all around the room and slurp it all up... E-erm... um, a-and those thoughts t-tend to force me to masturbate...
I-it’s a good thing I thought of soundproofing the room before all of that started happening...
U-um, I-I should note that all of this masturbation has been wetting my bedsheets a lot, m-making me have to clean them every day, w-with replacement sheets going on while the others are in the wash...
*sigh* I’m also not sure with what’s going on with Spike...
I know that I’ve been asking him to do quite a lot these days, but I also know how proud he is to be my ‘number one assistant’ and that he loves helping me. I know he does, that large smile just glows with pride and happiness, b-but... I don’t really get to see it anymore...
H-he should know how hard this is for me, and he should feel so very happy to help me with everything, but now he just rolls his eyes and mumbles under his breath.
I-I’ve had to clean my bedsheets as well as the, um, other messes I make, myself because of his abstaining from helping me, w-which ends up exposing me to even more of my lewd scent, m-making me even more likely to make a mess.
I-it’s a lightly self-perpetuating cycle, a-and I thought he’d understand that I need help to combat that, b-but when I asked him about it, h-he just looked back at me with a rather blank expression, a-a-and then, he um, p-pressed his claw into my nipple...
G-gosh, just t-thinking about makes me feel so hot...
*gasp* O-oh, gosh...
I-I think you can see the problem with a-all of this... a-and I really hope you can help me with all of this.
I... I know I made a terrible mistake, b-but please forgive me and don’t leave me damned to this terrible fate...
Your Faithful Student,
