It makes sense to her

"Weiss, you're a genius!" Ruby exclaimed, hugging her friend. Weiss choked out a weak "Of course I am," while a small wet spot appeared at her crotch at the feeling of Ruby's rack squishing against her. Without hesitation, Ruby whipped her skirt up to her chest, flashing her panties to her friends. At the sight of Ruby's snatch through her sheer panties, Weiss just about passed out, while Blake had to briefly look away at the sight of Ruby's cheeks through the back. Untying the cape, and putting it in the new spot, Ruby finished the retouches. One look at her friends faces told her it was much more intense than the previous version though.

The skirt did indeed cover her chest, but left a generous amount of under boob. And as she moved, the ruffles tickled her nipples, sending weird feelings down her chest. Calling the cape a skirt was a stretch; it was a high slit from the waist down, baring her thigh and the garter belt. It hid her underwear for the most part, but that wasn't a guarantee. Overall it accomplished what she had intended, but there was no way around it. Ruby looked like a slut now. Not that you would hear Weiss complaining. Nor would Ruby want to hear her complain. If Weiss liked it, to her, that meant that she thought it was alright. After all, Weiss would know what was appropriate and what crossed the line into inappropriate. The more Ruby looked at it, the more the weird feeling in her chest was becoming known. So burying her weird feelings, Ruby beamed at her friends, and stepped outside the huddle, taking an empty spot next to giant bowl of lemon lime soda.

"Thank you so much, Weiss!" Ruby squealed, hopping into the air.