Ianto huffs the breath of a laugh against the other man's skin. This is good. So good, to know that it isn't just John who has this effect on him, but that he can turn it around on the other man too. To turn his whole world upside down the the press of his lips and the smooth of his hand, in just the right way.

He can feel the tension building in John, and this time he doesn't pull back but allows it to keep climbing. Continuing the pace of his hand as he holds his head in place with the other. Tilting it back a little so that he's able to mouth his way along the more sensitive parts of his neck and jaw.

"That's it," he breathes, as John rocks and arches against him. "That's it."