She grins when he misunderstands, doing a little twirl for him in the dress, just because. Both of those options are acceptable to her, but only one is going to be suitable in this shop. Isabelle doesn't intend on being banned for life, so she settles for giving Billy a chaste kiss.

"I definitely like them," she assures him, nodding. She doesn't think she can be blamed for that, really. For a moment, she considers whether she wants to dress him in anything else, but she's not sure that she does. Dressing him in something he wouldn't normally wear might be a bit of fun, but she gets more enjoyment out of seeing Billy happy.

She smooths her hands down her dress, giving him a bright smile. "I think we look pretty perfect as we are, don't you?" They certainly look good enough to turn heads in the street on the way to dinner.