Oh yes! That's superb! So very Jack and so very Ianto! You get the joy of the exchange so well - they both enjoy the flirting (though I doubt Ianto has any idea how far it might one day go).

[Actually the only slight fly in the ointment is their discussion about Jack's sexuality in Day One. Then again, if all he ever does is banter, they may well just dismiss it as teasing. And Ianto is built to tease!]