This is where Thomas meets Toothless the Night Fury in Dragon Test.
Thomas: Wow. This place is beautiful.
[He hears a noise]
Thomas: Hiccup, what was that?
Hiccup: That was my friend. Toothless.
[Hiccup sticks his fingers in his mouth and whistles for Toothless]
Toothless: [purrs quietly]
Pinkie Pie: [whispers nervously] D-d-dragon!
Hiccup: You don't need to be afraid. He's friendly.
[Hiccup pats Toothless]
Thomas: Why do you call him that?
Hiccup: [holds up a fish] Show them Toothless.
[Toothless opens his mouth revealing that he has no teeth]
Thomas: Oh. That's why.
[Toothless then brings out his teeth and eats the fish]
Fluttershy: [steps forward anxiously] Hello. I'm Fluttershy.
Thomas: I'm Thomas A.K.A OpThomas Prime.
Toothless: [purrs while walking towards Thomas]
Ryan F-Freeman: Hello, Toothless. I'm Ryan.
[Ryan holds out his hand and Toothless licks it]
Ryan F-Freeman: Thanks. I never see a Night Fury before.
Thomas: He likes you, Ryan.
Hiccup: That's why I brought you all here.
Ryan F-Freeman: What?
Matau T. Monkey: What?
Crash Bandicoot: What?
Hiccup: I brought you here to teach you how to train dragons.
Spike: Sweet Celestia, seriously?
Jessica Fairbrother: He's right, Spike.
Thomas: I've always wanted to train a dragon.