He trusted her, and watched her lift higher. But the higher she went, the more he worried. The distance before would just sting a bit, but she'd be no worse for the wear. Up where she was, if he screwed up, she'd bust at least a leg really bad.

...H-he can't let her fall!

Squaring his stance to keep himself steady, he observed her trying to steer, and wondered how the pegasi do it. He noticed they were a bit like superheroes, one or both hooves forward and steering to move through the air. Weeeird.