They were most definitely greedy, and it did come with the territory of being a god. Thor was good natured and had a heart of gold, but he was undeniably greedy over the subject of his brother. If he could have Loki like this now, then he wanted him like this for as long as he had breath in his lungs. If he couldn't have that, then they should've stopped this dance long ago.
A little laugh surfaced from his throat at Loki's response. "Indeed, and you are the best, aren't you?" He didn't mind stroking Loki's ego, though there was something else he wanted to stroke, and taste, and suck. Currently he was taking the edge off that desire by rubbing against Loki in a slow, but firm and deliberate way.
Hearing the way Loki uttered his name like that had him wanting him all the more. Not to mention, he wanted to hear his name fall off Loki's tongue like that a lot more before they were finished. "Do the spell," he urged him. Thor raised up, though it was a little reluctantly because that meant there was space between them, but it was necessary for the next little bit. He pushed Loki's legs apart and slid his hand down between them to first give his dick a little attention by stroking it a few times, but let go of it in favor of moving his hand lower and letting his fingers trace around the edge of his entrance. "Do it."