Jack smiles and gives in to the kiss, enjoying the feeling of the other man pressed up against him, enjoying the fact that he's still there with him, enjoying that they have this moment to share with each other, that they're both on this ship by some miracle and not letting any moment of it go to waste.

Jack's arm slips around Ianto's waist and he pulls him closer, deepening the kiss properly before pulling back. "C'mon, then," he said, nodding towards the door. "Any more of that and we'll be taking our chances getting caught in the shower again. Not that I mind..." he adds, with a wicked grin.