Open to all Jacks
It was going to have to happen sooner or later, Jack supposed.
Only so many roofs available to stand on, only so many places to get perspective, and too many of his analogues to be able not to coincide with them. After all, he'd already met his later self, his earlier pregnant self, and ...one that wasn't quite himself and he wasn't going to think too hard about that one.
Sooner or later, they'd end up on the same roof. At least it was flat and spacious, but his preferred gazing spot was occupied.
Moving forwards, he stood next to the man, mirroring his position, hands clasped loosely behind his back. "Nice coat for stargazing in."