He turned rather quickly when he realized that Kaylee was already working on getting undressed, his cheeks coloring faintly. "I'll just. I'll be right outside." And, true to his word, he stepped out of the transporter room, trusting her not to touch anything important while he waited. He'd lock the door to the room while she was onboard, once was finished getting changed, so she could leave her clothes in there when it was time for her to head back to her own ship. He'd like to see Serenity at some point; although he currently worked on a newer ship, he was no stranger to older ones, and it'd be nice to see an older one again.