Steps in - he's stepping in a lot, lately, isn't he? - and pulls her out of the water and back against him.

"Easy," he says. "I got you." Pat on the back, in case she needs a little help coughing it up.

After a moment or two, when she's a little more recovered (and he is not thinking about supporting her body, about his hands where they had rested on her waist, now on her arms), he says,"Sorry, I should've thought of that. You might want to hold your nose at first, and keep your mouth closed." A little rueful.