He knows full well he's fidgeting. He finds it's really hard not to, given the things Sonic was saying before. The blue hedgehog wasn't usually interested in that kind of thing! Yes, there had been bits here and there, particularly when he'd been turned into a girl, and there had been the whole thing when he was that older, vampire version of himself...
Cursing himself, mentally, for following the tangent, he gives his head a shake, trying to stop himself before the blush comes back in full force again. This is probably going to wind up just being some way for Sonic to tease him, as always. He's kind of gotten used to it. He does wonder about himself, now and then, though, with it. The teasing never seems to really upset him that much. It's just... how things are.
He blinks as the door opens, greeted with the smile, dark ears flicking lightly, at it, already starting to smile back, just a little, himself. It's easy to do when Sonic smiles. It's contagious. It stalls, though, when Sonic suddenly looks startled, the smaller hedgehog blinking up at him as there's a rush of something and then... oh. Oh! He blinks down at himself, briefly, before realizing that, yes, he did get dressed pretty much exactly like Father does, just out of habit. He wasn't even thinking about that!
Smiles, just softly, and maybe a tiny bit apologetically, up at Sonic as he nods, walking into the room and chuckling softly as he does.
"We're going to have to do something if you're going to keep giving yourself miniature heart attacks like that." he says, amused, before his smile pulls into a teasing smirk.
"Possibly figuring out how to train you in the art of paying attention. Though it might be easier just to dye me an entirely different colour, at that rate~"