This scene from the Sonic 3 movie is GOLDEN
It's the scene where Tails and Agent Stone are alone, exploring the ruins of a base, and it goes like this:
Stone: I'm just gonna come right out and say this. You're adorable
Tails: Oh, um, thanks!
Stone's been saying what we've all been saying ever since this sub got created, and now someone explictly, officially says it in a Sonic movie!