There's something to Elizabeth's tone of voice that sets off an alarm in Gai's mind, though he may not know the exact cause. He recognizes that sort of expression, not from seeing it in her, but from his own experiences, and the knowledge he'd carried with him back in his world that it wouldn't be long before his own death there. It's not a tone he'd ever wanted to hear her use.

Before he can comment on it, though, Elizabeth's lips are on his in what seems to be an attempt to kiss him breathless. And after everything they've just been through... he needs this, needs the simple human contact and passion. Something that's loving rather than cruel. So he kisses her right back, perfectly willing to let her take the lead on this. Right now, he'll do whatever she wants.