New York, New York – Scarlett Johansson and Colin Jost tried their best to keep one heck of a secret from the world – until now.

It's been a little over 10 months since Johansson (36) and Jost tied the knot, and their love story has just reached its next milestone in the form of a new baby boy.

On Wednesday, the Saturday Night Live star took to Instagram to share the news with his followers and friends alike, adding – in typical Jost fashion – a comedic twist.

In the post's first image, Jost wrote "Ok ok we had a baby. His name is Cosmo. We love him very much."

Kourtney Kardashian Kourtney Kardashian squashes rumors of "strained" relationship with son Mason

But the punchline didn't come until the post's second image.

After asking for privacy during this joyful time, the 39-year-old comedian noted that all inquiries can be sent to their "publicist" Michael Che – tagging Che's Instagram handle in the post.

The two comedians have quite an entertaining relationship – both on the set of SNL and in real life – constantly throwing one another to the wolves of social media for their own sadistic pleasure.

Despite unverified rumors, Johansson and Jost were able to keep their pregnancy predominantly under wraps. That is, until Jost briefly mentioned it during a stand-up comedy set at The Ridgefield Playhouse in Connecticut on Sunday, according to People.

The Black Widow star has one child, Rose (6), with ex-husband Romain Dauriac.