Blair Waldorf Leighton Meester and Seth Cohen Adam Brody have officially achieved MILF and DILF status: they’ve welcomed their bebe girl to the world, named her Arlo Day, and been found responsible for the death of thousands Blair-Seth shippers who are *literally* dead.

They’ve have managed to keep Arlo Day on the DL for an entire month, until the gossip sleuthhounds / morally ambiguous reporters over at TMZ uncovered the birth certificate from Cedars-Sinair Medical Centre – which is, apparently, the “celebrity hospital of choice”.

It makes sense, TBH; Leighton Meester & Adam Brody absolutely do not court publicity. Their impeding baby was only discovered when a paparazzo snapped Leighton well past the ‘is-she-or-isn’t-she’ stage.

Newly Minted MILF/DILFs Adam Brody And Leighton Meester Welcome BB Girl

LEIGHTON YOU LOOK SO HAPPY OUR HEARTS ARE EXPLODING.

Welcome to the world, BB Arlo Day. May your birth forge stronger connections between Orange County and the Upper East Side forevermore. 

Newly Minted MILF/DILFs Adam Brody And Leighton Meester Welcome BB Girl

Pictures: Henry S. Dziekan III via Getty Images / POPSUGAR.
via TMZ.