Cole can't get any clearer direction than that, and he accelerates the movement of his hand to match the speed of Max's thrusts. It only vaguely occurs to him to watch where he's angled so they don't create a huge mess that they have to sleep in. But it's a bit late to bring that up and he's too tired to move anyway so he just keeps going, not even saying anything anymore, just breathing heavily and waiting for that moment when Max reaches his peak and they can appreciate the afterglow together.