Kristen Bell and Dax Shepard have given birth to a baby girl.
The couple - who got engaged in 2009 - announced on Twitter today (28.03.13) they have welcomed Lincoln Bell Shepard - their first child together - into the world.
Dax, 38, wrote to his followers: ''Lincoln Bell Shepard is here. She has mom's beauty and dad's obsession with breasts. Hooray!''
The new mother was nervous towards the end of her pregnancy, and admitted she was relying on the help of friends who had already made the leap to parenthood.
Kristen, 32, had recently said: ''I'm gathering advice from everyone. I have a lot of friends with kids and work with a lot of people with children, so I'm just asking what's their best bit of advice.
''The nice thing is that, hands down, every person I know that has ever had a kid has looked at me with confidence and said, 'Oh, this is the best thing you'll ever do with your entire life.' So, that's nice to know.''
Dax and the former 'Veronica Mars' actress have been together since 2007, but plans for a wedding are on hold as a protest in favour of same-sex marriage.
Kristen previously revealed: ''''The reason we're not rushing to get married is because I don't feel appropriate taking advantage of a right that's denied to my [gay and lesbian] friends.''