There is a small, self-righteous glimmer of judgement in his eyes as he works back over to the node, curling his fingers to rub it between the firm pressure of two knuckles.

"Fourth? After three, you're still not sated?" He actually sounds clinically intrigued by that, his medical opinion overriding his smugness over the situation for once, which makes the increasingly-bold way he slips yet another finger into Tarn's valve almost laughable in terms of contrast.