Ianto doesn't reply beyond a smirk and a private decision to do just that if Jack does get back up on the stage tonight.
He nods and takes a larger gulp of his drink than he had planned. He knows exactly what Jack would rather have, because he spends most of his free time missing it, too. At least they can touch again, but its still not enough.
"That prison bars joke was terrible," He says, trying for lighthearted and falling a bit short.