In the spirit of the festive season, many of their followers and celebrity friends welcomed the news with open arms and showered thoughtful compliments on the Jenner and Blanco.
Linda Thompson was one of the earliest callers as she wrote.
"So happy that you are sharing this news so I can tell everybody I meet on the street now! Lol I have been keeping this secret, but it's been so hard! We're so happy, Love you both so much...Love all three of you so much!"
Heidi Montag who starred alongside Jenner in The Hills "couldn't be happier" for the cute couple on their growing family.