Don't worry, you aren't out of the loop or anything. The pic he posted is from an upcoming flick In Dubious Battle she's in that he's directing. She apparently plays a young mother in the movie.
That doesn't mean he posted the picture without joking around with everyone. He played that they conceived the baby during the taping of their last movie. Hilarious!
"Selene and I had a baby. It was born during Sprang Break," he joked in the caption, alluding to 2013's Spring Breakers.
Eh, we can't say we'd complain if they would have a kid. It would be super cute, that's for sure.