She grins a little at him when he says that it's safer to be kissing people. That's a policy that Isabelle could get behind, but she doesn't think most of the city would be on board with her. "Well, at least you'll get to kiss Luke to seal the deal," she points out, turning back to the subject at hand. It occurs to her suddenly that she doesn't know what kind of wedding it will be. Luke was a Shadowhunter once, but it's been long enough and he can no longer bear the kind of Marks that would be necessary at a Shadowhunter wedding. A mundane wedding seems an odd fit for him, though.

"Of course, I'd love to." Isabelle has never gotten to dress anybody for a wedding before, and she's excited. She's happy just to attend the wedding at all (at least, she hopes, assumes she's invited) but having something extra special to do, to be involved, makes her happy.

"Just don't bring Luke," she instructs, shaking her head firmly. "Bad luck and all that."