Author's Note

This story takes place shortly after Twilight Sparkles castle appears with the friendship map inside.

Working Out

“Eight, Nine, Ten! Great job Twilight!”

The barbell weights clanged heavily as Twilight set them down on their holder. She’d just benched a record new weight: 225lbs! That was quite a feat for any mare in Equestria, and Twilight had a drive to be better and stronger. Before her ascenscion she’d been a below average dainty mare at around five-foot four and not much to offer. Now that she was a looming six-foot six it felt wrong to let this body she’d been blessed with go to waste solely reading and snacking. Defined muscle rippled below her purple coat; not quite that of a pro bodybuilder, but certainly more impressive than a typical mare found in a gym.

“You really know how to make a mare jealous,” Rainbow Dash joked, eyeing the bulges in Twilight’s arm and shoulder as the Princess took a long drink from her water bottle. “I don’t know what you’re doing to build muscle so fast but I want it.”

Twilight slurped the last few drops with a satisfied ahhh and crumped the bottle in her fist. “I’m going by the Bible of Bodybuilding book that I purchased last year for you. Remember? The book you said was a nice gift but didn’t need since you were fine as is?”

Rainbow Dash’s eyes widened. “That dumb book? It’s full of things I already know!”

“Sure, the first fifty pages are full of the basics but the rest is chock full of helpful advice and tips,” Twilight cocked an eyebrow. “Did you really only read the first couple of chapters?”

“Uhhh…” Dash hesitated, tossing Twilight a dry towel. “Alright, ya got me. But I don’t think I want to get buff-buff anyway. Too much muscle would slow me down.”

“You don’t want to be bigger?” Twilight said, flapping her wings free of sweat droplets.

“Nah, I’m not saying that exactly… you know what I mean,” Dash said, turning around and pulling off her sweaty sports bra. Twilight ogled the hint of back-boob curving gently from Dashs sides before the clean white T-shirt was pulled on. The mare turned around and sighed, pulling her rainbow mane out of the shirt. “How do I look?”

Rainbow Dash looked great. She was no small mare at 5’11” and years of training and exercise had really given her a toned, athletic body. Great, strong legs, defined belly with nice abs, and a truly enviable muscular rear. Her breasts were even amazing, granted, they were slightly smaller than a couple years ago thanks to constant exercise but they were still big, soft handfuls of flesh that bulged out of every sports bra Dash owned. And right now Dash wasn’t even wearing a sports bra.

Twilight blushed and gave her a thumbs up.

“Great! I’ll just run home and grab a bra so I’ll be good to go with Soarin’ and Spitfire,” Dash said happily.

“I keep telling you to leave one here in case you forget,” chided Twilight, removing her own clothes. Her much larger height brought her a much larger bust too, her triple-F breasts almost unmanageable at times. As she brought her sweat-soaked shirt over her head, each mammary fell against the slope of her rib-cage with a wet SLAP SLAP.

“What I keep telling you is that its insane those puppies haven’t gotten any smaller while you’ve been working out,” Dash smirked, openly eyeing Twilights expansive chest as the taller mare dried herself, and put on a dry shirt. “Yet you’ve gotten bigger everywhere else.”

“If you like my body so much write it down somewhere,” Twilight teased, magically shielding her lower body while she slipped her gym shorts off her big, muscular ass. “That way I can prove you said it.”

“Hey! I’m just saying here,” Dash put her arms up defensively. “It’s kind of unfair.”

“The only thing unfair around here is when I let you beat me in arm-wrestling,” Twilight taunted, kissing her bicep.

Dash scoffed, her face blushing pink. “That’s such bull. I beat you fair and square and you know it.”

“I’m stronger than you, and YOU know it,” Twilight teased, magically packing Dash's bag and refilling her Wonderbolts water container. “That’s why you’re blushing.”

“I am not! Blushing!” retorted Dash, face turning scarlet.

“I’ll believe you when you can bench more than 200,” Twilight chuckled, magically un-racking the weights and putting everything back in their proper organized place.

“Hmph,” Dash stuck her tongue out. “Maybe I will look through that book… and give you a run for your money.”

Twilight bit her lip as Dash turned tail and headed out the door. “Have fun at the dive bar! I’ll make a copy of the book and send it to you!”

The gym door closed and Twilight sighed, her fingers opening and closing reflexively. Rainbow Dash had such an amazing body for a mare. From the minute they first met it was Twilight's second favorite thing about her after the brash attitude.

Or it least it was for a little while. Then one day after a magical mishap Twilight became an alicorn and now SHE was looking down at Dash all the time. Not only that but less than a year of bonding with Dash thru flying and exercise she had physically outstripped her friend to boot. Twilight sighed and walked to the mirror, staring at the fruits of her labor. Her wider, strong shoulders, thick legs, power thighs and rows of cut abs only served to remind her of how much she liked seeing this body on Rainbow Dash, not herself. It only diminished her attraction to the blue blur of a friend she was trying to get closer with. And its not like there were any mares taller than her that were both incredibly attractive and working out and available.

“And Dash isn’t going to read that book,” sighed Twilight, running her fingers down the rigid walls of her well-earned abdominals. “Dammit…”

At least her flirting was on point. Rainbow Dash liked being teased and challenged. Everything was going great up until the two months ago when Twilight physically surpassed her. Blasted right past Dash in every physical category and test of strength. Why couldn’t Dash be the tall strong one? Everything was easier when she was a foot smaller.

Maybe there was a way…

The sexually frustrated mare teleported into her room. It was not quite evening yet and her research room was thoroughly in order. Twilight walked over to the nightstand where she had several books open. In the past week she had taken to researching the fiend Tirek and his odd innate magical ability of absorption to fuel growth. Not only did his magical consumption absorb all magic to fuel his growth, but it engendered a positive feedback loop allowing him to become even better, stronger and more efficient at it.

Twilight had more or less broken down the magic and replicated it into a castable spell. Wisely, she had drastically lowered the threshold for ‘take’ magic to the point where the percentage taken was negligible and would barely scrape a ponies magical reserves. That, and the spell could be modified as well. And she already had an idea on how to modify it. Twilight dipped her purple quill in ink and began writing away, her mind swimming with ideas and spells and the feisty Pegasus she had stuck on her mind.