He almost feels as though he's made some kind of mistake. Just for a moment though, because Dimitri's fingers on him feel so fucking amazing. That low, teasing tone and smug face on him is something Byleth hasn't really seen before either, and it's delightful.

"A-Aha! Yes-- I-!" He can't even get the words out before he crumbles into more of that gasping, halting laughter. The flush on his face has spread down his shoulders, and every little touch has him feeling more and more sensitive. Maybe because it's Dimitri- or maybe he really is just that ticklish. He's not sure. It doesn't matter, all that matters is how good it feels. Beyond good. It's beyond pleasure into something almost too much, but he still craves more. He wants to be pushed beyond too much. He wants to be overwhelmed by this, not to mention... he doesn't want Dimitri to stop touching him. He wants that man's hands all over him, he wants his mouth and-

Ah. Now he's wet.