Looks like the Mane Six finally wrote an episode for themselves
"I said we could do it ourselves..."
"...but some ponies are a bit stubborn."
Looks like Shining Armor and Twilight aren't the only sibling rivals who are tense!
"Are you sure this counts?"
"It's from Shining Armor."
"'Dear Twily, hope your idea isn't just...'"
"He guessed your whole plan!"
"Pinkie party, Rarity costumes..."
"'Signed, the future Sibling Supreme'?!"
Well, what did you expect?!
He is your brother after all.