"I am?" he enquires, vaguely amused, but shrugs it off and goes to take down the greatcoat and try it on, throwing a, "Always been into vintage military - it's a Time Agent thing," over his shoulder as he goes.
By the time Ianto has made the coffee, he's checked out the view of himself wearing the greatcoat in the long mirror in the bedroom and decided he likes it, so he's still wearing it when he ambles back into the kitchen.
He takes the coffee, lifting an eyebrow slightly at Ianto's awkwardness and takes a sip, then makes a face. "Woah, that's sweet! Does future-me really like that much sugar?"