He really was worried that she was going to fall if she tried to climb, and he was also concerned if she was even going to agree to hanging on to him. She was stubborn, ridiculously stubborn, so he figured he might have to make a long speech to her about--

Oh nevermind, she agreed to it. He grinned at that, and then moved to crouch down in front of her. "Make sure you wrap your legs around me, I really need you to be secure since I won't be able to hold on to you like a proper piggyback," and feeling her so close against him would be a bonus as well. He chuckled to himself at the thought, especially since she already told him to just focus on climbing. Yeah yeah, master's orders and whatnot. He might make some jokes here and there about her chest though, definitely.