"Walls could work," Ianto said thoughtfully, as if they were discussing inventories or the merits of a new filing system. "Walls are always nice." He tilted his head to the side, considering for a moment. "As for desks, I suppose that would be dependent upon who is bending over said desk." He tone was calm and professional and certainly gave no impression they were discussing various and sundry locations for sex. "And sir," he said with a mild smile, "if you ever go in my archives without my expressed consent, I can assure you, it will not involve any sort of fun punishment."
He kept his face schooled to avoid showing the way Jack's actions were affecting him, but they were affecting him. Jack always managed to affect him, the smug bastard. "Oh?" he asked, keeping his voice even. "And what would they be, sir? You know I'm always happy to be of assistance."