Iron Lance bolted off in a hurry, leaving his friend behind sighing and shaking his head.

“Sorry about this man...” Flint spoke up, “I know he can be a bit of an asshole, but I never thought he’d take it that far.”

“Well make sure it doesn’t happen again...” Sunrise warned, “I don’t doubt for a second the princess will hear about this.” Flint ran off after his idiot of a friend.

“Really Dusk was that the asshole who trashed your place?” Rainbow commented, breaking the silence.

“One of them...” I replied, “The other is in jail right now...”

“Dude you could totally kick his ass.” Rainbow grinned, “Hey if you want a helping hand.”

“Nah Ah think Dusk could manage RD.” Mac grinned, “Ah’m pretty sure he doesn’t want a pair of runic mechanical balls, to make up for the ones he hasn’t got.”

“You’re not going to let me live that down are you?” I said unamused, Mac just let out a chuckle, “By the stars you’re such a tease...”

“Ah have mah moments Dusk.” Mac grinned, before giving me a kiss on the cheek.

“U-umm...” Fluttershy tried to speak up, “A-are you sure he won’t cause you any trouble?”

“Don’t worry Fluttershy.” Luna spoke up, “I’m positive he won’t get away with this.”

“Ah can’t believe the nerve of that gosh darn asshole.” AJ commented, “Ah swear it was bad enough with all the hassle he gave you and Mac.”

“Tch Ah can’t believe he’s still sore over losing a game of cards.” Mac shook his head, “One he tried to cheat at as well.”

“Wait that’s why he gives you so much hassle?” I asked, honestly I was expecting something a bit more...dramatic but over a card game? That was just pathetic.

“Eyup.” Mac nodded, “Ah dunno why he was invited, but after that he never came by for cards again.”

“Yeah Ah remember yer throwin’ him through the wall...” AJ added trying her best not to laugh at the memory.

“Jeez are all you earth ponies ridiculously strong?” Rainbow asked looking a little unnerved.

“Of course we are Dashie!” Pinkie explained, “Think about it. Unicorns have magic, and pegasai can fly and control the weather. So obviously Earth ponies are super, super strong. I mean AJ here can crush somepony with her thighs if she wanted to.”

“I-I see...” Rainbow went pale.

“Don’t worry sugarcube Ah ain’t gonna to do that to yer...” AJ whispered in Rainbow’s ear in an attempt to reassure her.

A few more hours passed by, and much to Sunrise and Luna’s chagrin every single creep in the bar seemed to be trying to flirt with them. Thankfully AJ and Rainbow were very keen on driving them off.

“Where’s Fluttershy?” I asked, Mac just grinned as he pointed to the dance floor where Pinkie and Fluttershy were strutting there stuff. I should have figured, Fluttershy was always a bit of party animal after a few drinks, “Enjoying the view there?”

“Eyup.” Mac grinned, “Though Ah wonder who has the nicer ass.”

“You won’t catch me dancing like that...” I blushed, “At least outside the two of us that is...” Pinkie and Rainbow was cheering Fluttershy on, and she looked like she was having the time of her life.

“Ah wonder what Rares would say if she saw Flutters like this.” Mac wondered.

“She’d probably freak.” I laughed, “I think I need to lay off the drinks.”

“Yer sure, Sunrise said the drinks were popular with the ladies here.” Mac asked raising a brow, “Heck even Luna said she liked it.”

“I dunno...” I admitted, “I feel kind of funny...and horny...”

“Twilight?” Mac asked suddenly looking serious.

“N-no...Just horny...” I admitted, “What was in that drink.”

“Jus’ stay here a moment.” Mac got up and headed towards the bar where Sunrise and Luna sat chatting with each other, “Ah don’t mean to pry Sunrise but what did you order Dusk?”

“Just the house special...” Sunrise asked, “I ordered the same for myself and Moonlight, is there something wrong?” Sunrise called over to the bartender and asked her what was in the house special they ordered.

“Um...it’s just a regular cocktail with a dash of chocolate essence.” She explained, “It’s a drink popular in Canterlot...why is there a problem?”

Sunrise and Moonlight looked horrified, before turning to each other and realising how many classes they had drunk.

“Macintosh get Dusk out of here now!” Sunrise shouted, “We’re going to have a very big problem on our hands soon.” Moonlight ran off with Mac to get Dusk away from the bar. Sunrise ran off out the back and teleported away.

“Oh by the sun no!!” Celestia cursed, “Damn it! I should have asked what was in those drinks!” Celestia quickly paced in a panic and put up a silencing charm in her room, and reinforced the door so it was tightly sealed shut, “Oh Tia you fool! Just be thankful that Luna is with Dusk! It’s only a matter of time before it happens, by the sun it’s Neighpon all over again!”

“Luna what’s going on!” Mac demanded, “Why are we at the barn!”

“Because it’s going to be big enough for both of us and it’s private!” Luna shouted as she put up silencing charms around the barn, “Look chocolate has a really weird effect on Alicorns...it makes us...well...oh by the moon how do I say this? It makes us big and horny to put it in it’s simplest term.

“Big and horny?” Mac shouted, “Yer mean Dusk’s gonna get bigger?”

“Yes and so will I!” Luna panicked, “Just be grateful that this was just chocolate essence! Edible chocolate is much, much worse!”

“Oh...there’s that heat again...” I said dreamily. I could feel those changes beginning as that wonderful feeling began washing over me, “Oh Luna did you just get bigger?”

“Now that you mention it...” Luna blushed and let out a moan, “It does feel tighter...” Luna’s breasts began to swell in size, straining her dress and threatening to spill out.

“Hmm...you’re so sexy Luna...” I let out a seductive grin, “And you’re getting so big...” I pressed my own expanding bust against Luna’s, I felt really good right now even more so than when I usually changed.

“Dusk...I-I...we...can’t...give in...to...” I pulled Luna into a kiss and pinned her against the wall. Our bodies continued to slowly climb in height, and get curvier and curvier.

Our asses swelled and filled out, giving Mac a front row seat as we got bigger and bigger. Our clothes began to stretch and tear as our breasts finally spilled out of them.

Mac watched on in utter shock, his marefriend and Princess Luna growing in size, their asses getting fuller, hips getting wider as their soaking wet lingerie became nothing more than a thin piece of string and then snapping under the pressure of their combined growth.

Luna couldn’t help but grope my swelling backside, giving it a tight squeeze causing me to let out a very happy moan.

“Fuck Luna!” I groaned, “Keep teasing my ass like that!”

“I-I’m sorry you have to see this Mac...” Luna let out a moan as I began fingering her pussy, and sucking on her swelling tits, “Chocolate...has this affect on us, we can’t...oh fuck! Help it!” Luna panted and groaned, “It makes us so sensi-TIVE!! Oh fuck Dusk!!”

Mac just watched on with awe as the two mares continued to grow...

Celestia threw her head back in bliss, after all these years of avoiding chocolate she forgot how good this felt.

“Oh fuck yes bigger!!” Celestia watched happily as her breasts got larger and larger, “Fucking grow! Tear through those fucking clothes!” As she increased in height her dress strained and ripped, Celestia loved this feeling, the growth , the clothes destruction.

Her already huge hips and ass got swelled even larger, and larger...and larger still. Her panties strained and groaned until it tore apart and snapped. Celestia let out a loud moan that would have echoes through out the castle if it wasn’t for her silencing charm.

“Fuck these are soaked!” Celestia took the rags of her panties and began teasing her clit with them, the silky material only fuelled her lust even further, “Oh yes bigger! BIGGER!!!!”

Celestia shot up another foot in height, her breasts swelled even larger as they filled up with breast milk. She took on nipple and began to suckle on it, letting out a muffled moaned as she squeezed the other.

She already towered over everypony but now she was triple her height, hips as wide as her queen sized bed, a thick juicy ass that was so plump and soft that if you slapped it, it would jiggle like crazy.

The floor was stained with her mare cum and milk, as she shot up another foot in height. She teased her clit again and again, making herself cum more and more as her sensitivity grew with her new size.

“Oh Fuck! Fuckfuckfuckfuckfuck!!!” Celestia moaned and screamed in bliss again and again. She needed more of this, to be bigger, sexier, curvier! She had lost herself to her own lust and growth, “Oh fuck! Bigger! More!! I want to out grow this whole fucking castle!!!”

She shot up in height again and again, each bit of growth sending her over and over the edge as she got taller, her breasts bigger, her hips widening, her ass swelling, and her thighs getting thicker by the second.

She could feel it building up, getting closer and closer as she was getting pushed against the ceiling of her bedroom. In one almighty scream she let out a blissful moan that the whole castle shook, even though the silencing charm prevented anypony from hearing her screams of bliss.

Celestia panted and sighed in contentment before passing out and slowly returning to her normal size.

“OH FUCK LUNA!!” I groaned as Luna ate me out, teasing my clit with her tongue, “OH BY THE STARS!!!” Was she using her tongue to recite runes and glyphs down there?

Mac watched on as his lover and the princess know doubled in height, going at each other with a lust driven passion he had never even seen before. Their growth showed no sign of stopping anytime soon, he could have sworn he’d never seen two mares get so big.

“Enjoying the show big boy?” I grinned and moaned, “Do you like big sexy mares? I’m sorry but your kind of too small to fuck me right now...OH FUCK!!!” I could feel Luna’s smirk as she continued to tease me, “Come here sexy!” I easily picked up Mac and tore his clothes off, “You’re so big and hard!” I began to suck and lick his cock, teasing him as gently as I could. I could feel Mac shiver with each lick of my tongue.

“Oh Twilight!!” Mac groaned, “How much bigger are ya’ll gonna get?” Luna sat up and teased my clit with her fingers.

“Not much longer...” Luna moaned, “Twilight and I didn’t drink that much, Sunrise had drank more than us.” Luna and I let out another groan as our growth continued, “Fuck I forgot how good this felt! Almost makes me wish I had downed a whole box of chocolates!”

“How big do ya’ll get?” Mac groaned as I continued to suck him, letting out a very happy moan.

“Depends on how much chocolate we eat and how pure it is.” Luna smirked, “Biggest I’ve seen is the size of the castle. Now come here you sexy stud of a stallion!” Luna took Mac and put him in between my breasts and hers as she pushed up against mine.

Mac had front row seat of Luna and I making out passionately. Our giant breasts rubbing up against each other, giving Mac a first hand experience of a full body marshmellowy heaven.

Luna and I continued to increase in height, our breasts rubbing and growing against Mac. We could hear him moan and groan as soft titflesh rubbed and caressed him, I giggled when I felt something very wet and sticky on my massive chest.

“Oh Mac you naughty colt.” I cooed, “Cumming all on my big juicy tits. You love big sexy mares don’t you...”

Luna and I cooed and groaned, as the last of the growth over took us and we both let out a loud moan as we came hard again and again. Mac thankfully was protected from our screams of bliss by our massive busts.

Luna and I panted as we came down from our high, as we slowly shrank down to our normal sizes. Mac gasped for air, and looked at both of us sighing contently.

“Note to self: Get Dusk and Twilight chocolate next Valentine’s day...”

Author's Note

This was the first time I actually wrote growth/mini giantess scene...still though even if this isn't your thing I hope you enjoy it anyway. I honestly don't know where the idea for chocolate having this kind of effect on Alicorns from...but meh it was fun to write.

Didn't I mention something about this happening earlier in the story with Cadance? I may have to double check about that.

• Silent out.