Jack had just gotten back from an impromptu trip with the Doctor, and he already regretted leaving. The cells were filled with Weevils that had somehow taken off their boiler suits, there were several empty pizza boxes on the coffee table, and the light was on in his office.
The first, he could understand: aliens were aliens, and naked Weevils just weren't a good thing. The second was odd, since Ianto cleaned up everything, anytime. That might not have been a good thing, but it was a fact. The third worried him most of all.
Webley in hand, Jack proceeded up to his office.
Only to holster it when he entered, because there was Ianto, half-asleep and writing something in his journal.
"Where is everyone?" he wondered.
"Home," Ianto said through a yawn.
"You should go, too."
"And you?"
"I…"
"With me, I mean," Ianto coughed nervously. "To my flat. To stay… with me. With a key of your own."
Jack gaped. Was Ianto asking—
"Right now," Ianto added, getting up. "If you want to."
Jack's answering kiss was all the confirmation needed.