Neither Lightning nor Vanille can show him their brands very easily, but as Fang falls back to show off her frozen brand, Lightning manages to pull the zipper partially down on her top. Not far enough to expose anything, but far enough that the very top of her brand and part of the eye can be seen.

"You're using magic like us, you're a l'Cie and you've got a brand," Fang tells him, pointing at hers. "Simple as that."

"Yours probably looks more like mine," Lightning adds on, "and there's no telling where you've been branded, but it's there. The mark of the l'Cie." It's something of a blessing and a curse as far as Lightning is concerned. Not having magic and the power they have as l'Cie means they wouldn't be able to fight their Focus, but not having a Focus to fight would be nice, too. "Do you remember your Focus? The dream you had after the fal'Cie branded you."