His eyes lit up at the mention of some of the rocks being a touch combustible. Loki rather enjoyed combustible things -being a fire giant himself, and the potential for combustion instantly had is attention. At least, that was until he took a good look at her face. Oh, she was fair, that he noted immediately. And bold, the fact that she was standing about in her shift and nothing more was proof of that. As was the fact that she didn't immediately rush to cover herself. Not to mention her words.
Loki was... intrigued.
Boldly, and uninvited, he stepped toward her. “Certainly you don't mean that. Who doesn't want fire? Fire warms us, cooks our food, burns our dead... it's very useful. Unless of course it interferes with,” he waved his hand at her tools and stone, “whatever you're doing.”
For just a moment, he took his eyes off of her face and looked back from her hammer, to the stone, to the powder, to everything else and then back to her face. “What are you doing anyway?” Loki honestly didn't know. Intelligent though he was, he had no experience with making paint himself. Nor had he known any of his companions to do it. At least not that they've shared the process with him.
He wondered what her hair looked like when it wasn't braided up. Was it long, was it only to her shoulders? Loki wasn't quite sure why it mattered, but he also wondered what she'd look like if she smiled. So he said, “Other than standing out here in your shift and beating a rock into submission with a hammer, that is.” That was a tease, nothing more, and was delivered with a friendly smile. And, he hoped, a non-threatening smile. She had a weapon at hand. Loki didn't want her to feel threatened.