His hands slid up Colin's back as he moved lower. And yes Colin was just kissing Zach's chest, but his body reacted as was normal with what was going on. Colin was kissing him, near his hips, oh Zach's pants were still on, but he felt achingly hard, but he didn't say a thing, and focused on how good this attention felt. Each little movement rang through because each of them was the most demanding of his attention while they happened.
And he tried really hard not to arch up because Colin had said not to, and Zach was doing what he said. It was like living restraints, not to be tied up and still follow each and every word. And oh it was only making him hotter, restraint that was. "Mmmm," Zach kissed Colin back harder than before.