He’s trying his best to fight off the fact that it’s warm where he is, and he’s try harder still to fight off the urge to relax and accept that this was going to be a thing for a little while.
“Watch the hair…” He grumbled, though he made no move to swat the thief’s face away.
“Haaaii…” Kid continued for a short time before moving his head onto the detective’s shoulder, lazily bringing one of the hands up to comb and straighten the slightly mussed hair.