Um, Les, that doesn’t really address her question at all. She didn’t ask if you wanted sparkling water, she asked if you wanted a drink. There are many, many other drinks than sparkling water. It really wouldn’t surprise if Batiuk constructed the past two weeks just so he could use “sparking water-boarded” as a punchline.
I do like how even though she says it’s nice to meet Les, Cassidy Kerr is not actually touching him. Her face in the third panel seriously disturbs me, though.