His heart falls into the pit of his stomach when he overhears the introductions. He can't help beating himself up for that, even as he mulls over the options that come under the umbrella of what Steve is asking for. "Sparkling or filtered? And how do you feel about ice?" He's grateful too a second later that his back is still to them as he pulls out a cup and prepares to make this cup of water the most memorable cup of water Steve has ever had, because the 'husband' thing makes a flush rise up his throat and over his face faster than anything else. He waits on bated breath to see if Pepper will correct him.