Sulu didn't like the idea of someone eavesdropping on them either, especially when their conversation had been so... private. But still, he wouldn't blame Jack if he had - it only made sense, really. Sulu felt suddenly like he might be intruding on Jack and Ianto's life, more than just in a momentary, handcuffed-to-Ianto sort of way. And this wasn't even his time or his universe; wasn't that just going to make this whole thing more difficult?

He was letting his head get away with him, thinking too much about something that was nothing more than a little flirting and maybe some mutual attraction. But, when he looked up at Ianto, he decided that it'd be worth it. Come what may, and all that.

"Well, in all honesty, I probably should confiscate it when he changes, but it'd be pointless, probably. Might come in handy, anyway, if you guys ever need to show up on board. And don't worry about the shoes - I can walk barefoot."