Colin had no idea how this went normally. He just knew, from what others and the part of the book he'd focused on told him, that it happened. He was glad to know that he was going to find out what it was, why people liked it so much. That was perhaps the most curious aspect: the fact that people liked it a lot. He understood why they liked touching now, so he would perhaps understand about this.
The less clothes Zach ended up with, the faster Colin's heart raced. He pressed his hand over his heart, trying to will it to slow down a little. It was so strange, the way his body reacted. He wanted Zach closer to himself. He smiled a little as Zach moved closer, finding quiet amusement in the possibility that Zach had read his mind.
His eyes focusing on the lube for a moment. "I...don't know the spell," he said quietly. "I think that I should wait until I know what I'm doing with the spell." He looked up at him, shivering slightly. He reached toward him, pulling him closer still. "Just need to know what to do."