He saw Shang Beida's butt, but that's about it. He debates it for what feels like forever before grabbing a robe and tying it shut around himself. He then reaches underneath to pull off his underwear, adding it to the pile. He feels... weird? Being naked under the robe? But it's fine.

"... It's just going to stick to everything and get other things wet if I leave them on." If he frames it as a practical thing then maybe he won't feel as weird about it. "After we hang these up can we... snuggle? I... I want to warm you up a little." As much as he can - he'll keep his leg away from the other, knowing full well the metal can be chilly.