Have you guys ever seen rarity and twi in the same place at the same time? I thought not!

@RushCars24  
Awww Man…. well thanks for asking :(

@Background Pony #CFDD  
Awww, sorry, this one is my only one I can choose, I will NOT do the others made by this artist, including that pic you posted.
 
Sorry, can’t do that…

@RushCars24  
alright =3
 
btw, do you think you can do a story for this?
 
 

@Background Pony #CFDD  
Thanks! And I’d give ya’ a pass to those roles! You absolutely correct!

@RushCars24  
claps nice! I like how towards near the end where you did the classic SpongeBob reference :3 let me sum it up via the roles they did near the end:
 
Starlight Glimmer - SpongeBob  
Twilight Sparkle (disguised as Rarity) - Plankton as Fake Mr. Krabs  
Rarity (Real Rarity) - Real Mr. Krabs
 
did that sum it up or what? :D

Another thing she could do with this would be to give Spike the best “dream” he’s ever had.

Great transformation!…
 
One night in the castle
 
Twilight Sparkle : Ahhh, good thing it’s time for me to spruced up like a lady unicorn, no one’s here, just me. Time to get started, better get it fast before Spike sees me, but first… cast a spell to make her wings disappear And now…
 
Twilight transform herself to Rarity (this GIF), walks to her mirror, speaking in Rarity’s voice
 
Rarity (Twilight Sparkle) : Well, well, well, how do you look, darling. It’s time for you for some undercover work. Be proud, be mine. Darling. giggling in Twilight’s voice, Twilight gasp and hid her mouth with her hooves, speaks back in Rarity’s voice Oh, sorry about that, do I miss something? giggles again
 
The next morning
 
Rarity : Let’s see how this going to work… surpassing Sugarcube Corner  
Pinkie Pie : pops from the window’s entrance door Oh, hey, Rarity!  
Rarity : GAAAAH!  
Pinkie Pie : Whatcha’ doin’?  
Rarity : Nothing, just about start my shopping yet again.  
Pinkie Pie : Good! Glad we’ve meet again in this morning again, how beautiful~  
Rarity : Twilight’s voice O-Oh, t-thanks… blushes  
Pinkie Pie : Huh?  
Rarity : I mean… Rarity’s voice Thank you, darling!  
Pinkie Pie : Say, have you seen Twilight? I haven’t seen her for a while…
 
Rarity (Twilight Sparkle) : intimidating in Twilight’s voice This is it, Twilight, you have to do this, don’t give up, be as Rarity as much as you can! Rarity’s voice Uhhhh, Twilight is in… Errr… One week in Canterlot with Spike, doing her princess’s duty with Celestia. That’s all!
 
Pinkie Pie : Oh, really? But Spike’s already here for somehow.  
Rarity : Oh, okay!  
Pinkie Pie : Wanna come inside and have a great sundae?  
Rarity : Oh, sorry, can’t do that right now! I gotta go. Bye! runs away  
Pinkie Pie : Huh? That was very quick, more than less…
 
Rarity : Gotta get out of here- bumps at Fluttershy  
Fluttershy : Oh, I’m sorry, Rarity! Didn’t saw you coming.  
Rarity : Twilight’s voice It’s fine- Rarity’s voice I meant, it’s okay, Fluttershy sweetie, I’m fine for that.  
Fluttershy : Why is your voice look weird today? You sounded like Twi-  
Rarity : Uhhh, nothing, NOTHING! Listen, I gonna go, Fluttershy, I see you later~ runs away  
Fluttershy : RARITY! thinks Huh, am I talking to the wrong person? No, that’s Rarity! At least…
 
Rarity : Twilight’s voice Okay, it’s safe for now, gotta go to the Carousel Boutique, quick. Before-  
Rainbow Dash : pops from a fluffy cloud Hiya! Rares!  
Rarity : EEEEEEP!! falls on the floor  
Rainbow Dash : How’s your day already?  
Rarity : Twilight’s voice That’s very… uh, I mean… Rarity’s voice Fine and wonderful, darling.  
Rainbow Dash : GREAT! That would be another sense to keep an eye on you!  
Rarity : Oh, thanks! wings pops up, Rarity gasps  
Rainbow Dash : Hey! You are now an alicorn, Rares!  
Rarity : Alicorn? NO! wings disappears by spell Just accidentally activated one of Twilight’s spells again~!  
Rainbow Dash : Oh, okay. Have you seen her already?
 
Rarity : No, she is in that mirror world, eventually, she’s asked me to guard her castle while she and Spike is in that world and Starlight is out for a friendship problem, again~ giggles
 
Applejack : What in tarnation’ is happenin’ here? Oh, Sugarcube, how’s goin’?  
Rarity : Twilight’s voice Fine- Oops… Rarity’s voice Fine, Applejack, very pleasant.  
silence  
Rarity : Gonna go now, don’t wanna to pause here with you two for a second. Bye!  
Applejack : Wait! looks at Rainbow Do ya’ ever know what she’s doin’?  
Rainbow Dash : Nah.
 
After another escape, Twilight, still as Rarity, ran over to a bunch of people, first, Cutie Mark Crusaders, and then, Granny Smith, Lyra and Bon Bon, Derpy and Dinky Hooves, Big Mac, Trixie, Diamond Tiara and Silver Spoon, Berry Punch, Lily Valley, and even Maud Pie, a few moments later
 
Rarity : Ugh, that was a bunch of close calls! Better get rid of this and- OOF! bumps into someone again Oh, sorry! Didn’t see-
 
Unfortunately, Rarity didn’t realize that the pony that she hits it’s actually, the real Rarity! Both Rarity’s gasps
 
Rarity : You!  
Rarity (Twilight Sparkle) : You!  
Both Rarity’s : Me?!  
Applejack : Ah-ha! Ah’ knew it! Two Rarity’s! One was a changeling, another is real!  
Rarity (Twilight Sparkle) : I’m not a changeling! I’m the real Rarity!  
Pinkie Pie : Oh-ho-ho! You gonna be kidding me!  
Rarity : Hey! I’m the real Rarity!  
Rarity (Twilight Sparkle) : No, I AM!  
Rarity : NO, I AM!  
Fluttershy : with Rainbow Dash Oh, it’s the time what you’ve waiting for!
 
Both Rarity’s surrounded by crowd
 
Rarity (Twilight Sparkle) : Uh, meep?  
Rarity : At least you tell me that you are not a changeling, then you must be fake!  
Rarity (Twilight Sparkle) : Hell no! You can explain to that!  
Rarity : CURSE YOU! You are fake!  
Rarity (Twilight Sparkle) : NO! You’re fake!  
Rarity : I’m gonna kick your plot!  
Rarity (Twilight Sparkle) : And I kick yours, too!  
Starlight Glimmer : QUIET!!  
Both Rarity’s : Huh?  
Starlight Glimmer : anger magic Until I’m really know who you think you are! Stay back, people!
 
Everyone backs off
 
Starlight Glimmer : Not even today if you going to see on the daylight, unless there is one Rarity in town, I’m gonna make you a pay! bring up a cart with a machine full of tartar sauce covered in anger magics Tell me, which one of you pones is the REAL RARITY?!
 
Both Rarity’s : gasps TARTAR SAUCE?!  
Starlight Glimmer : With my anger to kill you.  
Rarity (Twilight Sparkle) : No! Please don’t kill me! I don’t want to die!  
Starlight Glimmer : Until I know who the real Rarity is, nobody moves, nobody gets hurt.  
Rarity : Hey, take it easy with that thing, darling.
 
Starlight Glimmer : I’ll do the talking around here. I think I’ll just ask you two a couple of questions. Questions only the real Rarity could answer.
 
Rarity : Okay then.  
Starlight Glimmer : First question, what time does the boutique open?  
Rarity (Twilight Sparkle) : 7:30 A.M.  
Starlight Glimmer : Right! to real Rarity That’s one strike, Rares.  
Rarity : But…
 
Starlight Glimmer : Nuh-uh-uh! I’m running this quiz show, I’ll ask the questions. If there’s gonna be any ‘buts,’ they’re gonna be from me. Okay, question number two, How much days do you spent on Manehattan?
 
Rarity : Five weeks!  
Starlight Glimmer : Uh, what’s that?  
Rarity : Oh, I mean two weeks as I can say…! Am I pass?  
Starlight Glimmer : No.  
Rarity (Twilight Sparkle) : I won again. winks
 
Starlight Glimmer : Now only the really real Rarity could answer this — If you meet Rarity from the human world on that magic mirror in the castle, you suddenly tipped over against her, face to face after landed to that world by jumping, what do you do?
 
Rarity : That’s an easy one. You just… just… let’s see… if its.. uh.. well, actually… with… with…y ou… uh… kiss?
 
Starlight Glimmer : YOU LOSE! So long, fake Rarity! Buh-bye!
 
Rarity : Wait, Starlight! Give me another chance, NOOOOOO!! anger magic sprays on Rarity, explosion appears, killing Rarity for good
 
Starlight Glimmer : You okay, Rarity?  
Rarity: Twilight’s voice Fine- Uhhh… Rarity’s voice I’m fine, Starlight, I’m happy now!  
Starlight Glimmer : Good, now let’s-
 
Sadly, Rarity’s color palette rips off, the shape on the neck what Starlight’s hooves makes becomes purple, soon, Starlight realizes this, and gasp, “fake” Rarity gasp, everyone gasps
 
Starlight Glimmer : Wait a minute! brings a bucket of water, water splashes to Rarity, losing every makeup around her, revealing herself as Twilight Sparkle TWILIGHT?!
 
Twilight Sparkle : Uh, yeah, sorry! Twilight’s wings appears once again Oh!
 
Everyone didn’t notice Twilight revealing herself portraying Rarity as a prank, soon, they eventually leaves the area unamused, leaving only Starlight and Twilight
 
Twilight Sparkle : Uh, what now?  
Starlight Glimmer : unamused You finally done.
 
Somewhere, Rarity’s tombstone is seen
 
Starlight Glimmer : Why are you become Rarity?
 
Twilight Sparkle : Well, I wanted to impress her by making a prank, so I’ve transform into her. That’s why I’ve ran into problems for today.
 
Starlight Glimmer : You gotta be kidding me.
 
Magic pops up, Rarity appears again once, alive
 
Rarity : I knew it!  
Twilight Sparkle : What the? Rarity? Y-You are supposed to be… d-dead, right?  
Rarity : Of course not! breaks tombstone with a hammer-like magic
 
Twilight and Starlight looks at each other
 
Twilight Sparkle and Starlight Glimmer : AAAH! A zompony! AAAAAAAAAAAAAAAAHHHH!!! both rans away
 
Rarity : Huh? Dressing as me can be a good idea, right? Well, One job, Twilight, one job. Darling. laughs