A.N. Okay, I think we all know where this is going...

Fade in on Twilight, trotting down the hall with Spike.

"I cannot believe it! I just can't! She actually said it! She's replaced me!"

Spike, grumbling, "I don't see the big deal. I mean, technically, you're not even her student any more..."

Twilight, rounding on him, "You... don't... see a big deal?!"

Spike said, "I'm just saying that it's not like you were given special preference, I'm sure Celestia cares about all her students."

Twilight, growlingly, "Well! Maybe my real friends will understand!"

Mane Six (sans Twilight) surrounding Mary Sue.

Rarity exclaimed, "Oh, Darling! I just loooove your mane! It's sooo... you!"

Rainbow Dash excited, "Yeah, and I cannot believe you managed to outfly a griffon! You don't even have your cutie mark yet!"

Applejack said, "And I just love how honest you are!"

Pinkie Pie squealed, "I love cake!"

The rest stare at her. She realizes she's off-subject.

Pinkie Pie bounced out, "And you. You're nice, too!"

Mary Sue graciously said, "Why thank you, everyone you're too kind!"

Twilight approaches with Spike.

Twilight, muttering, "They really are..."

Mary Sue cheerily spit out, "Twilight, how lovely to see you!"

(Runs over, and hugs the princess.)

Mary Sue, gushing, "I cannot wait to see all the trials you've set up for me."

Twilight, slightly evilly, "Oh no... no you can't."

Herald: "Announcing the trials that Princess-in-waiting Mary Sue," (pauses, eyes go wide, gasps...) "Announcing... two hundred and sixteen tasks!?"

(crowd collectively gasps.)

Mary Sue, cheering, "Woo-hoo! I can't wait!"

(inspiring music)

"The world for me is an open oyster,

just someone and me together and we'll be!

The very best of friends,

But as every adventure ends,

Sticking together, just you and me!"

(She performs several daunting tasks, gaining perfect marks all along the way."

The crowd sang along, "The world for you is an open oyster,

A princess must behave perfectly!

We always give you tens!

You score and score again!

We cannot wait for your coronation ceremony!"

Mary Sue joined in, " hope to be a princess true!

And just between me and you,

There's so much more to DOOOOOOO,

But I hope that someday I'll beee...

Princess... Maryyy... Sueeeeeeeeeeeeeeeeeeeeeeeeeeee!"

(Song ends)

Twilight, breaking down, "She's perfect Spike!"

A random pony mentioned, "She's the next Twilight Sparkle!"

Twilight Sparkle screamed out, "Noooo...!"