Sulu found himself blushing just a little at Ianto's compliment, even if it wasn't an option at the moment to take that sort of compliment further. It was still nice to have Ianto flirting with him again, even if it was just slightly.

He also understood what Ianto was saying about how tired he really was, and honestly, it just made him more sure of their new plan. He'd much rather be there with Ianto, in case he ended up falling asleep in the the tub. That'd probably be one of the worst things that could happen at this point. "All right, yeah," he said, smiling at Ianto, "Then we'll head up now. Then," he laughed, "We can tackle how we're going to actually fit both of us in your tub."