If Fabrice is taking more breathes than normal to calm himself, put himself in a place where he can actually focus on the task at hand and not the blue of Demetri's eyes or the crinkles around them, he tries not to let it show. This is a truly important task and he can't risk it for the sake of his own desires.

He still feels Demetri's presence, though, pulling on him like a magnet. He takes another breath before looking up at the other man.

"If you could, just briefly dip your finger into the bowl, so the spell will pick up on James as well as Moira," he tells him, knowing how absurd it must seem and unable to think of a simpler way of explaining it.