Sakura's eyes flicker up briefly, catching that smile even through the mask. She almost starts to relax - it's a nice smile, so sue her. Either way, she should have known better, because then he opens his mouth.

She chokes, although it's to her credit that the flow of chakra from her hand doesn't even falter. "Kakashi-sensei." There's a dusting of red across her cheeks now that's she's trying not to think about. Other things she's trying not to think about: undressing the man in front of her.

"You really are a pervert," she manages, doing her best to sound chiding. And mature. Definitely mature.