She is very accepting

"Don't worry, I understand if you need them." Pyrrha crouched down and helped pick up Ruby's belongings.

"I-I-I mean, are you sure it's okay? I doubt you know a lot of girls our age who wear diapers..." Ruby was surprised that Pyrrha was so accepting of her diapers. It was then that Ruby realized she had wet her diaper in the shock of falling down, causing her to try and cover up her padding in the process while she readjusted her combat skirt. "Hey, uh, Pyrrha? Could I have my bag back, please?" She asked nervously.

Pyrrha had a very warm look on her face. "I take it you had an accident?" She asked softly, to which Ruby nodded shyly in response. "If you want, I think there's still time before orientation, so I can change you."