Sulu nodded, continuing to rub Ianto's shoulder with one hand while he grasped Ianto's searching hand with the other. He knew what Ianto was talking about, the change from cold to hot; it wasn't a common thing in San Francisco, but it did occasionally happen to snow and when it did, sometimes just getting out of it could be more than a little jarring. He wished that he could help, but he knew also that there was simply nothing he could do to fix it.

"Yeah, I get it. If you can't adjust, though, let me know. Do you think you can stand it?" He knew that if Ianto couldn't handle the heat, he would be a bit more vocal about it, but at the same time Sulu had noticed a sort of hesitance in Ianto to mention anything being out of his comfort zone. It was a little disheartening, really, to see Ianto trying to pretend everything was all right some of the times he caught it. He just hoped this wouldn't turn into another one of those times.