Growing into Her Role

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