Klaus understood the feeling of having pent up energy. This place was like a giant prison and despite the fact there was room to move around, it still felt suffocating. Klaus was glad that she was unharmed. While she was human and he knew that she was capable of helping herself, they were friendly and Klaus wouldn't stand by if someone was trying to harm her.
He offered a smile. "I too feel antsy in this place. Though perhaps it is more because I am waiting to see what else our captors will throw at us."
Klaus waved her thanks away. "It is no trouble. If you are in need of expending more energy and want to spar again, all you need to do is ask."