The next time Keltham gets close to an orgasm, he pulls her head back. By the hair.
"I was getting close to a potential-orgasm there," Keltham says. "Now, in dath ilan, a slightly skilled partner, not a professional, just someone who'd put some time and money into improving the pleasures she had to trade, would have machine-assisted training for reading how close I am to orgasm. If she wasn't relatively skilled, I'd have to expend the effort to say verbal numbers from one to twelve, to tell her how close I was to coming, so she could slow down or speed up to keep me at around nine or ten, without going to twelve."
"So are you slightly skilled by the standards of dath ilan, Carissa Sevar?"
(Said in what would be, in dath ilan, a naughty male voice, but not at all a submissive one.)