[Palace of Orochi - Keiko's Suite]

"Did you want to?"

Keiko being awkward means there's less awkwardness for Cleo to feel - it's a conserved quality once you get past the first little bit - so she can fit in some playful teasing.

With a bit of pointed pretending no one else is there, she undresses the rest of the way and hops into the shower.

At least they have the benefit of drying quickly. And Keiko implied the tailor works very quick, so an altered formal outfit should be ready whens he's done, or soon after.