He sighed as Louis let his tongue tease him, smiling at the sight. He'd been right, Louis looked good on his knees. He let his fingers find their way into his hair, keeping it light, gaining control without seeming to do so.
"Take your time," he said. "There is nothing to it. Just take it in your mouth, watch your teeth, and let your lips and tongue doe the work. You'll like it." More importantly, he would.