Despite everything she's learned about Earth culture, Kara still doesn't understand the aversion to nudity. She also doesn't have Piper's anxiety around baths. Her clothes aren't designed to stand up to so many washings, so she drops them by the door and slides easily into the hot water with a satisfied sigh. It really only gives her a slight sense of warmth, but she has enough memories of hot water to know how she's supposed to feel.

"Is it too warm for you? I can't actually tell," she confides a bit sheepishly. Sometimes having superpowers is really awkward.