Last Wednesday was the worst day EVER.

According to Sweetie Belle, anyway.

It had potential to be a great day. The Sun was shining and the birds were tweeting. It was very peaceful scenery. It was the kind of day, that would be great for a certain white filly to find her talent and get her cutie-mark. Also to hang out with her brand new sister, Storm Star. However, that wasn't going to happen. Scootaloo was at Las Pegasus visiting her aunt and uncle, while Applebloom was grounded for doing something terrible with a hay bale and a match.

Sweetie Belle would've loved to spend her day with Storm, too. However, she was busy doing chores for Rarity. She was earning pocket money to get a bag of carrot cookies.

"Hey, Storm!" Sweetie Belle walked over to her grey, blue-maned sister, who gave her a friendly grin, "after you've done all your chores, do you wanna' go down the swimming hole and do some dives?"

"Aw, sorry Belle," Storm Star wrapped a broom up in her right wing, "I'm going to a picnic with my brand new friends! Ain't it great?"

Yes, Storm Star was growing MUCH more confident around crowds. The other main 6 had grown fond of her, and had invited her and Rarity to a picnic.

"Don't you have crusading to do?" Storm Star asked, beginning to sweep the tiled kitchen floor.

"No. My friends are all busy." Sweetie Belle looked down at the ground.

Before Storm could make anymore suggestions, a familiar mare unicorn poked Sweetie Belle in the rump. She screamed and turned to see her fashion-crazed sister, who gave a light chuckle.

"Darling, didn't you say that you were going to help Storm Star with the chores?"

"She did?" Storm Star asked.

"That she did!" Rarity replied, "She said it yesterday. You said that you were going to help sweep and clean my dress wardrobe but you didn't, did you Sweetie Belle?"

"But Rarity! Miss Sky Whizz offered me a free balloon ride yesterday! I just couldn't turn it down! Besides, it might of got me my cutie-mark!"

"Well, I don't see any ballooning cutie-mark on your rump," Rarity snapped, pointing to Sweetie Belle's 'blank flank', "and if you don't get your chores done you'll have a few marks from my hairbrush down there!"

Sweetie Belle just rolled her eyes. Rarity always said that, but it was always just a threat to get Sweetie Belle working.

Well, not that day...

"Storm Star, darling, finish up your sweeping and give Sweetie a hoof with my wardrobe, ok?"

"Aw, but Rarity! I'll be late for the picnic! You said it was going to be a fun, calm day!"

"I said it would be a fun picnic. Until then, you finish up your chores! I have some arrangements to finish! And be careful with my dresses!"

Rarity trotted off to the front room. Storm Star gave Sweetie Belle a tiny glare, but then just sighed.

"C'mon, Sweetie. I've done sweeping. Let's tend to Rarity's dress wardrobe."

Sweetie Belle pulled out a dozen dresses from the wardrobe. She tripped and squeaked.

"STUPID DRESSES!" Sweetie Belle cursed, chucking them all onto Rarity's massive bed.

"Unload less dresses at a time, Belle." Storm Star suggested.

"I don't need your suggestions, Storm! I'm not a little filly anymore!" Sweetie Belle hissed. Storm Star rolled her eyes.

Sometimes young ponies needed to learn things themselves.

Sweetie Belle's stubborn behaviour, took the sisters twice as long to unload all of the dresses and clean the interior of the wardrobe.

Rarity walked in, levitating a couple of drinks onto her drawer.

"Thought you might like these," Rarity began, "can't have you working all parched and dry can we?" Rarity cringed at those very words.

"Wait. There's still more?" Sweetie Belle asked.

"Well, you still have the exterior of my wardrobe to clean, don't you?" Rarity raised an eyebrow.

"That will take all daaaaaaay! Your wardrobe is MASSIVE! It took us AGES to get all of your dresses out!" Sweetie Belle moaned.

Rarity sighed frustratingly. She was beginning to grow tired of Sweetie Belle's constant whining.

"It won't take but an hour! Besides, you said you didn't have plans so what's it to you?" Rarity asked.

"I... you and I have plans, Rarity," Storm Star muttered under clenched teeth.

"Gosh! This is wetter than I thought on the outside!" Sweetie Belle said as Storm Star smashed her sponge into a bucket of fresh water.

"Well, you should've done it yesterday, shouldn't you?" Storm Star pointed out, angry at her sister.

Sweetie Belle scowled, "What difference would it have made?"

"Well, if you had done it yesterday, I wouldn't have to deal with your whining today! Now get working, cream puff!" Storm Star tossed Sweetie Belle a wet sponge. Sweetie Belle gave a snort, but began working.

Storm Star was in a just as bad, if not worse mood than Sweetie Belle. She just wanted the job to be done, so she could get ready for her first humble picnic in years. She splattered her wet sponge onto the wardrobe, splattering water drops all over Sweetie Belle.

"Ugh! Cut that out, thunder blunder! You're getting it all over me!" Sweetie Belle muttered.

"Well work somewhere further! You're annoying me!" Storm Star replied angrily.

"Well you started this! You shouldn't of hit me with your poisoned water!"

"How dare you!"

"Thunder blunder!"

"CREAM PUFF!"

Sweetie Belle thrust her sponge at Storm Star. It hit her face, making it soaking wet.

"WHY, YOU!" Storm Star wiped off water from her eyes.

"You wanna' settle this?" Sweetie Belle asked, stamping her hoof.

"DEFINATELY!" Storm Star shrieked.

"YAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAH!"

Sweetie Belle jumped up and landed on Storm Star's head. She began pulling her neat, blue mane.

"AHHHHHH! GET OFF, WHELP!"

Storm Star threw Sweetie Belle off and pinned her to the wet wardrobe. They were going to end this fight, even if the entire wardrobe crashed onto them.

And then it nearly did...

The wardrobe began to wobble...

Then tip forward.

"AHHHHHHHHHHHHHHHHHHHHHHHHH!" Storm Star and Sweetie Belle shrieked. Sweetie Belle closed her eyes as Storm Star flew up, getting them to safety. Sweetie Belle opened her eyes, to see herself safe in the front-legs of Storm Star.

That passed in such a blur...

CRAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAASH!

"OH MY GOODNESS!" Rarity had come rushing upstairs, only to find her wardrobe pummelled to dust. Dirt and dust was over-flowing the room, making it blurry, cloudy and hard to see anything.

"STORM STAR? SWEETIE BELLE?"

"WE'RE OK, RARITY!" Storm Star yelled, clutching Sweetie Belle tight and flying out of the room exit.

"Oh, thank Celestia!" Rarity embraced the both of them, tears pouring down her cheeks with relief.

When the embrace was done, Rarity asked, "Now what in the name of fashion happened here?"

The two red-faced young ponies looked down at the ground in shame. Rarity tapped an impatient hoof, which began the two sisters. They told Rarity the whole story, from the stupid quarrelling to the wardrobe falling, and becoming nothing but cracked shards of wood.

"Well, first things first, girls, you have some cleaning to do!"

Sweetie Belle and Storm Star got straight to it. They both cleaned the entire room, dusting, sweeping, the whole darn dirty stuff.

While doing that, Rarity was thinking.

Hard.

The sweeping, scrubbing and rubbing was finally done. The two sisters returned back to their eldest sister, who just glared at them with shame.

"A 3 metre-wide wardrobe, ruined! Do you have any idea how much that cost me? DO YOU?" Rarity yelled angrily.

The two young sisters shook their heads slowly, tears trickling down Sweetie Belle's small face.

"That's 1,500 bits, my savings, washed down the waste drain like nothing!"  Rarity brought a front leg to her forehead, "How could you?!"

"We're... sorry, sister." Storm Star's legs began to tremble.

"I would give you both a whooping with my hairbrush if I had to!"

Rarity suddenly had an idea.

A punishment idea.

"In fact, that's what I'm going to do!"

Storm Star and Sweetie Belle gasped. Sweetie Belle almost chocked on her tears.

"No, sis! Please! You can't! It'll huuuuuurt!" Sweetie Belle pleaded.

"I'm sorry, you two, but you've left me no choice! Go into the bathroom and pick your brushes! I have a whole bunch of them in the sink drawer."

"Please, Rarity!" Storm Star's eyes were beginning to leak with tears too, "You can't! You-"

"I'm sorry, you two. Now scoot! Meet me downstairs. Pick a good, maybe pretty brush and don't make me wait!" Rarity trudged downstairs, as the two poor siblings walked into the bathroom.

"I'm so sorry about this, Sweetie Belle." Storm Star lifted up a black plastic brush, before putting it back, "This is all my fault!"

"Your fault? No, sis! This was my fault!" Sweetie Belle sobbed, as she put back a dirty wooden brush.

"Found any good ones?"

"No. I- wait! Here's a couple!"

Sweetie Belle lifted two brushes out of the drawer. One was a clean, thick wooden one. The other, a less-thick plastic one.

"Let's take those. I'll have the wooden one. It's thicker." Storm Star took the wooden brush, sliding her hoof down it's flat side.

"C'mon. Let's face our fate like proper young mares."

Sweetie Belle and Storm Star solemnly walked downstairs. They came into the front room, where Rarity was sitting on the violet sofa.

"Let's see what you chose then," she ordered, as Storm and Sweetie handed over the brushes.

"Very good. Sweetie Belle, come here."

Sweetie Belle walked over to Rarity, tears pouring down her cheeks.

"Rarity. Please! I'm SORRY!"

However, Sweetie Belle's pleading would not change Rarity's mind. She levitated the small filly into position, draped over Rarity's lap. Next, she picked up the plastic brush and slid it down Sweetie Belle's back, making the small filly shudder.

"Please, sis! Can't you just whoop me with your hoof? It'll hurt enough!"

"Young filly, you can't change the facts! You're lucky to be alive so you should fell glad that you can feel this severe whooping!"

After Rarity slid the brush slowly down Sweetie Belle's rump, she blew the first spank. Poor Sweetie Belle could only cry, as the brush sent amazing waves of pain into her behind. Rarity was feeling guilty already, but her sisters had to learn somehow.

"Now, Sweetie Belle. Dry those tears. I'm going to start for real, ok?" Rarity stroked Sweetie Belle's purple-pink mane.

"It huuuuurts!" Sweetie Belle sobbed.

Rarity drew back the brush...

And landed the first real spank.

Over and over again the brush hit Sweetie Belle's rump, making her bawl harder and harder. Each time she kicked her legs, Rarity would spank her leg before she continued with the bottom. Sweetie Belle was surprised that the plastic hadn't melted yet!

Nothing could of prepared Sweetie Belle for the pain she was feeling. She screamed as the plastic hairbrush sent pain into her behind, the agony bouncing all over her body. Rarity paused for a moment, allowing herself to check on the small filly's rump. It was a nice shade of red; nothing that wouldn't fade in the next few days. Rarity spanked Sweetie Belle's red rump ten more times before setting the brush down. She gave Sweetie Belle a few hard hoof spanks before letting her go.

Sweetie Belle bawled a few meters away from the sofa, nursing her poor cherry-red rump.

"Storm Star! Here, now!" Rarity ordered.

Storm Star walked over to Rarity, ready to accept her severe spanking.

"Now, Storm Star, I'm surprised at you. You were supposed to be a good role-model! But now I have to punish you in a way that I wish I couldn't!" Rarity scolded. Storm Star's eyes were waterfalls of tears.

"Please, Rarity! I-I'm s-sorry! Please d-don't do this!" Storm Star began hyperventilating, her legs trembling like mad, and her face as red as what her rump would look like.

Rarity had no mercy though, as she levitated the grown pony onto her lap. Sweetie Belle had left a warm spot, but that wasn't very comforting to Storm Star. She began kicking her legs, bawling her head off.

"Please, Storm! Your in a worse state than Sweetie Belle! The whooping hasn't even started yet."

Storm Star didn't listen. She reached for a pillow, hid her face in it and cried, as she felt her tail being pulled out of the way. Suddenly, she heard Rarity's kind voice in her ear;

"Now, Storm, this is going to hurt terribly. I wish I didn't have to do this. I know this is your first punishment by me, so I'll go easy. Just be a brave young mare and take this as well as you can. In a few minutes this will be over and we can start with a clean slate."

With that, Rarity drew back the brush, and landed the first dreaded smack. Poor Storm Star let out a groan of agony, as the pain bounced from her bottom all the way up to her forehead.

Rarity said that she would go easy, but she was worse with Storm than Sweetie Belle. Over and over again the brush hit Storm Star's rump, and it wasn't long before the pillow was soaked in tears.

"PLEASE, RARITY! I'M SORRY!" Storm Star shouted, but her older sister just continued with the punishment.

Storm Star was in dreadful pain. She had memories of her past as the spanking continued. Her mother's favourite way to deal with a naughty filly was with an awful leather whip. She would crack the whip onto her and her old sister's rump. Blood Moon always took it so well, but Storm Star cried like a baby.

"Blood Moon," Storm Star whispered, but so quietly that nopony could hear her, "where are you?"

Rarity carried on until Storm's behind was lobster-red. She gave the hardest final brush smacks, and gave Storm a few soft hoof spanks before letting her go.

"Oh, come here you two!"

Rarity embraced her sisters in the tightest hug she had given for weeks. She smiled at her sobbing sisters, and gave Storm Star a bag

of bits.

"Rarity, I-"

"You can go and get your carrot cookies. I have enough to buy an even bigger wardrobe. Sweetie Belle can go with you, and maybe go to the picnic with us?"

Sweetie Belle jumped in the air with joy. It was almost like what happened was instantly forgotten.

"C'mon, Sweetie Belle! Rarity, we'll meet you at the picnic?"

Rarity gave a nod.

"Race ya', Sweetie Belle! Oh, and can we not let anypony know what happened?" Storm Star asked. Rarity rolled her eyes.

"Oh course I won't tell anypony. I'll see you both soon! And be sure to hide your humps."

Storm Star and Sweetie Belle raced off together, out of the door.

Maybe that day wasn't such a bad day after all!