Oh, she was mentally cursing at him, and that only increased when he spoke up while climbing and just had to mention something like that. But even she knew that she couldn't full-out tsundere as usual, not while he was climbing, or they might fall. And the last thing she wanted them to fall over was something this ridiculous. Yet.. she didn't just want to let him get away with saying something embarassing like that either.

"Don't make me order you to shut up." Her face was furiously red though, and she once again attempted to hide it a little against his back - even though he wouldn't be able to see it for the most part like this either way, and there was nobody else around to see. It was more out of habit than anything else, she just didn't want to be seen all embarassed and vulnerable like this. Not that she would really order him to shut up, though, that would make things much more difficult to bear in this kind of place.