"Won't tell a soul," she says cheerfully, completely beside herself that he'd let her touch the engine. Hell, she wasn't sure she'd let him near Serenity. She had her own kinks and quirks and she was much smaller. She had a very narrow margin for error with that machine. She followed on her toes, ready to do anything he'll let her and she assumed that she'd have to keep this quite for about... ever. She was okay with that.