Ianto meets John's eyes for a long moment. He watches as that smile plays across his lips. His eyes really are quite an interesting play of colors, he thinks to himself, before he forces himself to look away.

"Well, you've seen what a job I did on my own before," he replies, as lightly as he can. "Isn't that why you've taken over for me in the first place? You know, so I could blame you for any mistakes that were to happen and we could both feel better about it."

He shifts to toss the quirk of a cheeky smile over his shoulder at the other man in turn.