It was the comment about the cooking that triggered Sean's laughter and his mind skipped right over any discomfort or confusion regarding what exactly to call Xavier after that. He was getting used to the general juggling of monickers, in a way, between his own mixed usage and the constantly growing realization that different people knowing different versions of the same person was a very real and potentially confusing issue to be faced. Science fiction as he had known it, he maintained, had very little on the reality of their lives today.
He settled down into a simple smile after a moment, a hand brushing back into his hair, mostly of its own accord, almost as if the limb held some personal determination to put his appearance into any sort of order. It was, with little doubt, a lost cause, of course, and he ignored it in favor of saying, "That's Erik." The way he says the name may forever hold a certain degree of uncertainty when he's potentially within earshot of the man in question, so Kitty wasn't alone in that, even as long as Sean had been with Erik and Charles. He only stumbled over a moment's pause, however, before he went on. "Mostly I think I've only really seen him make breakfast. Maybe he cooked dinner once or twice before we got here but he goes for this long run every morning-- I think sometimes he just comes back from that with it all in his head that nobody else ever eats a balanced meal in the morning or something. Almost makes it worth waking up before noon."
There was a side-eye glance along with the last statement, subtly marking it as at least partially a joke, before he looked around them to take in the current inhabitants of the room. Mentally, he noted two things in this process. One was that there were, in fact, definitely at least a couple of people he didn't know. It was a thought that he mentally earmarked as something to fix later, some time after this meeting or whatever it was supposed to be. The other mental note, however, was more pressing in that he had, in fact, sat himself right next to the cause and, well-- In short form, he suddenly realized that he was already remarkably comfortable with Kitty, kind of like he had developed such a quick sense of comfort with his teammates when they had all been brought together. Except for one major difference: the not entirely uncomfortable knotting sensation in the pit of his stomach. He cleared his throat and quickly dropped that thought before it could really sink in enough to make his face start turning odd colors for no apparent reason.
"But, uh, yeah." His confidence held up fairly well, at least, as he pointed back to where he had been sitting only moments before, a hint of excitement even playing in his voice. "Blondy over there is Alex. Went on a goose chase yesterday to find him and there he sits, already stealing all my clothes." This is an hilarious observation, given the fact that the clothing in question quite obviously do not fit Alex properly at all. "Other than that, the, uh, other blonde one over there is Raven and-- Um." With a slightly confused blink in the general direction of Lorna, Sean paused, then turned back to Kitty with a slightly apologetic grin. "Actually, that's pretty much all I know." As if that isn't already more than the poor girl knew before.