United Kingdom, Sept. 4 -- Penn Badgley has welcomed identical twins with his wife Domino Kirke.

The You star found a very low key way to announce the birth of the two boys as he shared a post about an upcoming live event for his new book Crushmore, which he wrote with Podcrushed co-hosts Nava Kavelin and Sophie Ansari.

Taking to Instagram, he wrote: "Interrupting twin paternity leave to announce a live event @podcrushed at @symphonyspace Oct 14 NYC supporting the release of our book CRUSHMORE. Truly proud of this one.

"Please check it out! @podcrushed for all info."

In the video, Penn is whispering about the event as the camera shows the feet of one of the newborn babies.

He said: "There's tiny little baby feet right there. I don't ...