She knew he was holding back, normally he would have gone crazy by now. Maybe she wasn't doing enough? Never wanting to disappoint him, she adjusted herself so she could take him straight to the base and sat still.
He let out some strange, low grunt as he held her head still as he began bucking his hips slowly, sending his cock deep into her throat every time. He let out a low, needy moan as he did so.
He was drooling, gasping and moaning louder as he picked up the pace. He was stretching her throat with his massive cock, shuddering and snarling as he moved faster and faster.