It takes a moment for that to sink in for Ianto, because he actually had been readying himself to peel away from the other man's side and give him the space he'd assumed that he'd want. He turns to glance up at the other man, his blue eyes searching John's face in the attempt to find whether this is just something he has resigned himself to or whether it's actually an invitation. He's... Going to hope that it's the latter. He really would like for it to be, anyway.

He'd like to pretend it's the chill in the air that brings the color to his cheeks, but they both know better than that anyway. There's about a thousand questions that go through his head as he meets John's eyes. Are you sure you'll get any sleep if we do? Do you resent the fact that I want this? Do you want this? Would you promise to tell me at least if you didn't?

"Well..." Ianto says at last. "You... Are very warm..."