He might have made some sound; doubtless one of them were responsible for the hoarse gasps that occasionally resembled words and the intermittent whimpers. The Master had retreated past thinking of them as separate beings and let his awareness ride the sensations as his body operated on pure instinct. It was best for him that way, best to feel their climaxes trigger each other like linked charges without caring which fuse had run out first. And it really did feel like an explosion, a great pulse of rippling pleasure that raced down each neural pathway, leaving him calm and still with an absolutely ridiculous grin.