Loki stared at her, just stared. She had been teasing him all these times? Then he blinked a few times in stunned silence. Why would she, who barely knew him, tease him? They had no common friends or interests, from what he knew. They didn't run in the same circles at all. They'd not, until today, had any grand adventures together where she could be considered friend enough that her jibes could be taken playfully and she certainly wasn't intimate with him on any other level to indicate that she was only teasing.
What in the nine worlds possessed her to tease him when she barely knew him? Was he expected to tease her back now? No, that seemed wildly inappropriate somehow. He barely knew anything about her. He knew she called herself Holda's daughter, he knew her name was Sigyn, he knew she ran with Frigg but didn't do the traditional sorts of crafts expected of a woman. He knew she was skilled with paint and that she was smart. But she wasn't close to him in any way at all that he would consider teasing appropriate.
It invited trouble. She was inviting trouble. She was also indirectly asking him a question and, he assumed this time, teasing him again. What? Oh, if her flint and steel had fallen in the snow when she tackled him and he wrestled her onto her back...
What did she need flint and steel for? Loki never carried flint or steel with him. And when he was out with Odin or Thor he never carried it then either. Because he could start a fire without it and everyone knew that. Everyone except Sigyn it seemed. So why did she need flint and steel?
Oh. Fire. Right.
Loki moved from his spot and knelt beside her by the fire, moving a bit of stick around just a bit. “I wasn't the one pinned on my back,” he said and moved another stick so that he could get a good position. Then he stuck his hand into the opening he'd made and grabbed some kindling and took it out. “You don't need flint and steel,” he said and he cupped his hand that the kindling was in to make a small bowl for it to rest in.
He focused his energy and warmth into the hand and in a moment the kindling was smoking and starting to smolder. Loki brought his hand up toward his face and blew gently over the smoldering bits and after a few blows there was flame. He let it sit a moment, in the palm of his hand, as it caught well enough to be certain it wouldn't go out the second it set it back in the little nest it had under the cone of sticks. Then he did just that, placing his hand back into the sticks Sigyn had arranged and set the flaming kindling into the rest of it. He leaned forward, pressing his hands in front of him on the ground and blew gently into the base to encourage the fire to grow strong.
Once the sticks sufficiently caught he sat back upright, proud of himself even if it was second nature to start things on fire at this point and grinned.