Suddenly, unexpectedly, his lips curl into a grin. He steps back from Jack, arms going behind his head. He's manic, after all, not entirely sane before Adam, and after Adam he's become a psychopath. Jack intimidates him less now than he did a year ago.

"So, what did the Rift gift you with?" he asks lazily, as he takes a few steps back towards the door. "Super-strength? Super-speed? Never-ending sex drive?" He certainly hopes it's not that latter. Jack might enjoy that too much, and Ianto doesn't enjoy his new-found empathy at all.