A new set of wings. Losing the elements of harmony. Even a trip as superheroes and she still hadn’t figured out the secrets to this magic. Or at least not all of it. Sighing to herself, Twilight settled down on her e-cup breasts, the result of her decision weeks ago to try to increase her chest size. She raised herself back up, gazing at her notes and all of the new formulas she’d made. She closed her eyes, thinking back to all of the different spells and books she had tried, all the time she had spent learning and manipulating growth magic.

First she found herself revisiting the day it had happened, that wonderful day of pleasure that Pinkie loved telling tales about. Twilight shook her head, trying desperately to get her heart rate under control since she hadn’t made love since then. She then remembered Dash complaining that e-cup got in the way too much when she had flown afterward while Rarity complained about not being larger than most of her friends anymore. AppleJack never said a word beyond that she wouldn’t mind being back to how she had been. Pinkie and Twilight had no problems with it of course since Pinkie was even more popular at parties and more than once Twilight had positioned herself so her breasts held up her book. More than once she thanked Celestia that becoming an alicorn hadn’t caused that magic to go wonky again.

That was when she remembered Fluttershy. As shy as she had been before, her cup size had never helped. Now it was worse since she had the largest breasts in Equestria that were still natural and not temporary. She had hid in her room for days with all the guys who followed her swinging breasts. AppleJack and Rarity had protected her when she came out of her house to hang out with all of them when all of them began experimenting with dating, something that Twilight chuckled at when she remembered how lustful Rarity was and what AppleJack did to her with Fluttershy. Now though, the poor mare seemed even less capable of talking to stallions than ever and had just kept getting more uncomfortable around other people as they payed more attention to her chest. Twilight ran her hands through her hair, thinking about how she had hardly seen Fluttershy since it all happened.

Hearing the door to the library open up as the first of her friends came in, she opened her eyes and stood up.

“Hey Pinkie,” Twilight said, a smile coming over her face. The two hugged and Pinkie flashed a mischievous smile as she twirled away, her shirt barely containing her d-cup chest since it was one from before the party and an unbelievably tight ass being hugged by jean shorts.

“Hey Twilight! So, its been awhile since you called us all over here without an actual reason. Maybe you finally want to have that naughty party I’ve been talking about?” Pinkie was bouncing a bit as she looked at books, obviously trying to nonchalantly make Twilight blush. She failed at the former but did a great job of making Twilight get a shoulder ache from her wings popping open involuntarily.

“No Pinkie, although I do want to talk about the last time we did… that kind of thing.” Twilight watched Pinkie smile as she leaned against a bookcase. The pink mare had been dying to get into one of her friends pants again since the party but none of them knew how they felt since most of them hadn’t had too much sexual experience prior. Twilight jumped as she heard the door open, her friends with the most and least amounts of sexual experience walking in.

“Hey there,” Rarity and Fluttershy said as they stepped into library. Rarity was in one of her dresses, the fact that it was beautiful was a given, that hugged her curves nicely. Fluttershy was in a pretty sundress that had to have been custom made to cover her ample bosom. Rarity raised an eyebrow while Fluttershy blushed at the sight of Twilight’s wingboner and Pinkie’s outfit.

“And what kind of party are we having today Twilight?” Twilight blushed even harder from the question while Pinkie giggled.

“You and Pinkie run on the same wavelength Rarity,” Twilight said as sarcastically as possible, getting a very unhappy glare from Rarity. Before she could say anything though, her ass got smacked hard by the door as a blue pegasus opened it to get into the library.

“Rarity! Would you mind getting your big ass flank out of the way!” Rainbow sounded fairly cross at the unicorn, probably as a result of all their recent fighting about cup size. Rarity quickly stepped out of the way, mumbling something about her ass not being that big when in fact it was perfect with her smaller waist. AppleJack followed Rainbow inside, the two of them in work out clothes and covered in sweat. Noticing Twilight’s prolonged glance at them, Applejack blushed.

“Sorry about the appearance sugarcube. Your invitation was a little last minute and the two of us still wanted to get a nice workout session in since we both got the day off.” Twilight stood up and walked to the kitchen. Normally she would have Spike prepare snacks and serve them but she didn’t know how this conversation was going to go and it was about a topic that wasn’t appropriate for a baby dragon. Because of that, she had waited for Spike to leave and he had been called away unexpectedly by the princess. As she brought out a plate full of nachos, Twilight saw that her friends had all taken their usual positions around the library. Once everyone had a snack and something to drink, Twilight sat down and sighed.

“This is about the expansion magic that I used on myself which then affected each of you.” After saying this, Pinkie perked up, Rarity looked excited, AppleJack and RainbowDash both looked interested, and Fluttershy blushed deeply. “I’ve been studying into it and I’ve figured out how to make the spell a lot more stable.”

“So,” Rarity purred, “does that mean you want to go spreading the love again?” Twilight blushed hard, coughing a little as she shook her head.

“No, not at all. In fact, I don’t plan to ever teach anyone that particular spell.” Twilight sighed inwardly as she watched Rarity slump down. AppleJack was the one to lean in with a puzzled look though.

“So why bother learnin’ how to stabilize it then? Not to mention you’re the one who says that every piece of knowledge was important?”

“Its so that I can continue looking into growth magic and share safer spells with others,” Twilight paused a moment, preparing herself to continue. “Especially breast expansion techniques. I’ve actually made quite a bit of development in that field. The new spells I’ve created that allow for far more controlled expansion.” Pinkie bounced onto her feet, an excited look on her face.

“So we can just choose whatever cup size we want whenever we want it!?” Pinkie lost a lot of the energy she had jumped up with as Twilight shook her head.

“No, we can’t simply make ourselves two sizes larger. All of the spells so far still require some kind of…. excitement. I also haven’t figured out a way to reduce our cup size which means..,” Twilight paused glancing guiltily at Fluttershy who then took it as a cue to end the sentence.

“Which means that if we make ourselves larger, we are forced to live with it.” Fluttershy’s blush disappeared, a mildly sad tone creeping into her voice. RainbowDash sighed in disappointment while Rarity looked deep in thought. Pinkie was, as usual, acting like she didn’t have a care in the world.

“Obviously I will be willing to teach others the spells and I sent a copy of my written notes to the princesses to add to the royal collection of spells. I figured you all might want to know since I plan to continue looking into these spells and you’ve all been affected by them.”

“Well Twilight,”RainbowDash said, jumping up, “I think we need to celebrate the fact that you’re finally making some magic and trying to make it safe for once.” Rainbow stuck her tongue out teasingly as she finished this and Twilight scowled as she remembered all the times a spell had backfired on her.

“That sounds like a great idea!” Pinkie jumped up and pulled her party cannon out of her hair, making Twilight once again wonder how much could fit in there. While those two got things set up AppleJack and Rarity came over to talk to Twilight. She looked around at all of her friends, an unbelievably sexy group of mares, especially if she included herself, and shrugged to herself. I mean, Twilight thought to herself as the three of them went into the kitchen, what could go wrong because of this?

Author's Note

This was mainly written for the sake of establishing the basis of the sequel. Sorry for no clop, I promise it won't happen again in these stories, and they will hopefully never be this awkward again.