She shares her clothes.

"Ah, what do I do?! What do I do?!" Ruby briefly panicked as she tried to come up with a plan to resolve the situation. None of her prior training had prepared her for such an outrageous situation, and her social awkwardness certainly didn't help cope with the fact that her partner for the entirety of her stay at Beacon was currently stark-naked behind a tree less than five-feet away.

"You can start by calming down!" Weiss shouted, startling the gothic-themed girl and stopped her from pacing back and forth.

The momentarily panicked girl gave herself a light slap on the face and used the pain to narrow her focus. "Alright, just gotta calm down and think."

Finally settled down to a reasonable degree, Ruby took stock of her options -which was to say, not many- and tried to formulate a plan of action. Weiss's clothing was already beyond salvage -that was certain-, so there was no way for them to cobble together something resembling an outfit. She also lacked the ingenuity to make something akin to a skirt and shirt using foliage. The only viable option was the obvious one; Ruby needed to divest herself of her own attire to afford Weiss a semblance of modesty.

Taking a deep breath and exhaling her stress as she braced herself for what must be done, the reaper-girl made up her mind. After all, it was the duty of a Huntress to help others in need, and Weiss was most definitely in need of help.

"Ok Weiss, I'm going to let you borrow some of my clothes." Ruby spoke with resolve.

"Thank you so much Ruby!" Weiss exclaimed in joy. "Right now, you are the best partner I could have ever asked for!"

The relief and joy that could be heard in Weiss's voice was in a way its own reward, giving the red-clad girl a sense of satisfaction from aiding her partner.

"Yeah, I guess I am." Ruby replied, feeling a touch bashful at the praise she was receiving. "Just promise me you won't laugh when you see my underwear."

Weiss let out a sarcastic chuckle. "Ruby, you could be wearing tighty-whities with a butt-flap and I'd consider them cute with how appreciative I am."