Malcolm wasn’t thinking clearly enough to consider sparing Raylan, or he might have. Every ounce of any focus he could muster around what he was experiencing was in trying to provide the experience back to Raylan. He has to release Raylan from his mouth when he comes and the sudden shudder is almost a surprise to himself as he grasps Raylan in his hand still and tilts his head against Raylan’s thigh to ride out his climax before returning to working Raylan more earnestly.