[Breathes a small sigh, almost an "oh", the more Shiro's fingers run through his hair, shifting to settle less tentatively too, more comfortable. It's... so nice, but it's also making his stupid heart beat a million miles a minute. But. He's fine. It's chill.]
[The breath turns into a little laugh after a moment.] Ha, yep... real lucky. [He's pretty convinced that's just his line here.]