Humming to himself, hands behind his head, Jack kicked the door shut and made his way into the kitchen. Leaning against the door frame, he moved to shove his hands in his pockets, looking Ianto over with a faint smirk. "Have fun while I was aware, Ianto?" Jack inquired, noticing the mark and the over all relaxed demeanor Ianto was sporting. He knew what the other man looked like after sex, and his clear blue eyes glittered with amusement.