Sulu blinked at the question, a bit surprised by it. Certainly, he'd noticed that it was a little awkward sitting there, knowing that in a little bit a hurricane was going to be blowing through their carefully faked calm, but he hadn't really expected that question in particular to break it.

The truth was that Sulu had no doubt McCoy would see Ianto. The man wouldn't turn down someone in need of medical attention - it just didn't strike Sulu as something the man would do. And besides, Sulu would plead his case the best way he could, whenever he got the chance to ask McCoy for help. He wasn't sure how he'd do it, but he'd know when the time came.

"Of course he will," Sulu said with a smile. "He's too good a doctor to turn down a patient. Besides, you mean enough to me that to not treat you would lead to my being emotionally compromised, and I'm the best helmsman in Starfleet. They can't afford to do that to me." He'd realized about halfway through that sentence that he might be letting himself be too heavy, too serious, and so he'd played it off as best he could.