Thankfully, Sulu knew not to push his luck, and so instead of trying to make things more difficult for Ianto he simply kissed him, keeping himself still in Ianto's lap as he did so. The kiss was more to reassure the other man than an actual answer; it was pretty obvious that Ianto was getting flustered, and Sulu liked that, but he also liked it when Ianto took charge. So, he just smiled at him after he pulled away and gently urged him on. "What did you have in mind?"