He does it again, once, on autopilot, and that's got to be intensely gratifying-- that he's taking Yuri apart, but there's no hesitation or thought behind following an order like that.

He does pause after that, though, shifts slightly, to bring them up to three, which doesn't let him reach as good, but has a fuller feeling to it, when he does brush against that spot next.

They do have a destination he very much wants to get to, after all. He has no idea what it's going to feel like when Yuri's riding him like that, but he wants to know as much as he's ever wanted anything.