United Kingdom, May 14 -- John Mulaney didn't meet Olivia Munn's mother until after their first child had been born.

The 44-year-old actress gave birth to son Malcolm, three, in November 2021 after starting to date the 'Everybody's Live' host earlier that year, and her mother Dung Kim Schmid didn't get to meet him until after their new arrival.

Olivia told 'Late Night With Seth Meyers': "So Malcolm was born the day before Thanksgiving and my mom comes, first of all, never met John by this point."

Her mother didn't "even say 'hi' to John" at first, instead removing frozen turkeys from her luggage as she revealed a family "tradition" to the 'Saturday Night Live' star.

Olivia - who gave birth to baby girl Mei June in September last year ...