This is how Shining Armor confronts Twilight goes in My Little Pony: The Revenge of Nightmare Moon.
[Shining Armor sees Twilight, in her Nightmare Nova armor, looking for the intruders and walks across a metal bridge. Shining Armor follows and stops]
Shining Armor: Twily!
[Twilight stops and turns to face her brother]
Twilight Sparkle: Shining Armor. I've been waiting for this day for a long time.
[Shining Armor begins to walk over to her]
Shining Armor: Take off that helmet. You don't need it.
Twilight Sparkle: What do you think you'll see if I do?
Shining Armor: The face of my beloved sister.
[Twilight takes off her Nightmare Nova helmet]
Twilight Sparkle: Your sister is gone. She was weak and foolish like her brother. So I destroyed her.
Shining Armor: That's what Nightmare Moon wants you to think. But it's not true. My sister is still here.
Twilight Sparkle: No, Nightmare Moon is wise.
Shining Armor: Nightmare Moon is using you for your magic. When she gets what she wants, she'll create eternal night. You know it's true.
Twilight Sparkle: It's too late.
Shining Armor: No, it's not. Come home. We can stop Nightmare if we work together.
Twilight Sparkle: I'm being torn apart. I wanna be free of this pain. I know what I have to do, but I don't know if I have the strength to do it. Will you help me?
Shining Armor: Yes. Anything.
[Twilight starts to give Shining Armor her Nightmare Nova helmet and Shining Armor tries to take it, but Twilight tightens her grip on it and blasts a beam of magic at him, making him fly into a wall. Shining Armor gets up]
Twilight Sparkle: Thank you.
[Twilight puts her Nightmare Nova helmet back on]
Shining Armor: Twilight, you're being controlled by Nightmare Moon. You have to listen to me.
Twilight Sparkle: You will never convince me to betray Nightmare Moon.
Shining Armor: It's me. Shining Armor. Your Big Brother Best Friend Forever.
Twilight Sparkle: Not anymore.
Shining Armor: Twily. Please.