What does it mean? Is it pervert talk?

It doesn't mean anything in particular.

Right, Kusunoki-sensei!?

Eh?...Ah.

HUSTLE is the name of a program...

Yes... NICE FOLLOW-UP!

I'm fine with that.

Sensei is the only one male I'd allow that before I become a nun.

I'm fine even if you want to have these shameless delusions about your students while laughing and smiling vulgarly night after night. Help yourself.