He doesn't exactly want to say no to payment like that, but he doesn't want good work going to waste. Let those abused muscles get used to being relaxed for a while, before they have to back to work.

"You're welcome, Olya. Any time." He assures her quietly.

And if that touch is an indicator of how she would intend to continue, he imagines that there's considerable talent there.

Somehow, he's not surprised.