"A kid?!" Gokudera snarls. He's like... sixteen-ish! Not an adult, but hey he is not a child! He's just younger looking than Peter.

"Fuck you!" He barks, taking full offense even though it's clear they're both not super excited about fighting. His silver hair seems to bristle a bit in anger, and there may be a small flash of fire on his hand. Or maybe that's just the glint of his rings. He's got a lot of accessories on, including what looks very much like a dog collar around his neck.

Okay, so this guy is definitely acrobatic, but Gokudera's been jumped in alleys before when he was eight. A bonk to the head could knock him out if Peter can land it, but Gokudera's ducking to sweep out a leg and fuck up his landing.