There's another strange sensation, and his vents stutter at the renewed flow; only steel self-control keeps him in place, but there's no denying his own sound of relief when she mentions her progress. His optics shutter at the knowledge that there's only a few more moments of the odd feelings, and by the time she comes all the way out, he's noticeably sagged.

"...you will forgive me," he quietly drawls, "if I am in no hurry for you to do that again."