Aaron Paul, wife Lauren expecting baby girl

'Breaking Bad' star Aaron Paul is all set to become a father to a baby girl.

The actor's wife Lauren Paul revealed the gender of their little bundle of joy in a sly post on Instagram.

"Nothing to say other than I love these humans and I'm missing Telluride. And I'm pleased to introduce you to Flat Aaron. When I travel without the babe, Flat Aaron always comes with and parties. Also, why are we all smiling the exact same way? It's kinda amazing. Also creepy," the mother-to-be wrote before adding, "Alsooooo baby girl was in my tum here and I had no idea. BUN!"

The 38-year-old first revealed his wife's pregnancy in September with an adorable post on Instagram.

"Hey everyone. Look what I did. Words can't express how excited I am that this little one has entered our lives. Just thought it was time I would share this beautiful news with all of you," he wrote at the time.

The couple, who became engaged in January 2012 and tied the knot in May 2013.