[ ...it took years to work up to that level. And Kakashi is at ground level at the moment. And completely mortified. And rather glad for the ANBU mask because his cheeks are burning quite hotly and he's pretty sure if he didn't have it on, there'd be a flush creeping up above the edge of his usual mask. And that's not cool because Sasuke is younger than him and supposed to be his student (well... not yet, but still, this is a matter of principle) and he's not supposed to be embarrassed by his student.
So.
Play it cool. ]
Oh, so I read porn in front of minors when I get older, huh. I guess that explains "contributing to the delinquency of minors."
[ And the way he says it, it's like he doesn't give a shit. Or so he hopes. He'd like to hope like he doesn't sound like he cares at all or is affected by this or embarrassed. ]