This is how Celebrating and Thunderwing talks to Twilight goes in The Cutie Map.
[At Twilight's castle, we see the ponies and Autobots celebrating]
[Twilight is walking when she suddenly stops and looks at her hooves]
Thunderwing: [in Twilight's mind] It is a matter of time before anyone discovers all is not right with you, Twilight. I must reclaim my body which means taking complete and total control of yours.
[The screen fades to black]
[Rarity and Twilight are taking a walk]
Rarity: Bumblebee has asked me to go on patrol with him.
Twilight Sparkle: Wow. You are lucky to have a friend like him, Rarity.
Rarity: I know.
[Twilight stops as she gets a flashback of the last battle with Thunderwing]
[The flashback shows Twilight and Thunderwing fighting until Twilight blast Thunderwing with a powerful beam of magic, obliterating him. In reality]
[Twilight then rears back and fires a beam of magic at Rarity who dodges it]
[Twilight is walking when she stops]
Thunderwing: [in Twilight's mind] If I am to return to my body, I must first restore its functionality. How did I escape annhililation?
[He has a flashback which shows the Dark Energon in Thunderwing's chest being pulled out by Dreadwing]
Thunderwing: Of course. Dark Energon.
[The flashback shows Dreadwing grinning]