Well, Lalla didn't see any reason to waste time. Again, probably stemming from her inexperience when it came to these things. She didn't quite know the etiquette, as it were, for how these things went and so she winged it, went with what she felt was right at that moment. And right then, getting undressed seemed right. He was going to paint her nude, anyway.
"Thank you..." Once he'd unlaced her corset (in record time, it had to be said), she removed it and laid it on the floor, pausing for just a moment before pulling off her underdress. Having already removed other undergarments, that was the last thing to go, and she glanced over her shoulder, her back to Antony still. "I don't suppose I need to tell you I'm all done," She quipped with a small smile, swallowing any nerves she had.