The couple announced they were going to become parents for the first time in September, and now they've shared more details of their incoming little one with fans.
During a trip with friends but without her other half, expectant mum Lauren took to Instagram to reveal the gender of the baby she will be welcoming soon.
Alongside a picture of her group of friends and a cut out of her husband, which she sweetly refers to as 'Flat Aaron', she revealed the pair will be welcoming a little girl.
Nothing to say other than I love these humans and Iâm missing Telluride. And Iâm 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? Itâs kinda amazing. Also creepy ð¬ Alsooooo baby girl was in my tum here and I had no idea. BUN!
She wrote: '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 😬 Alsooooo baby girl was in my tum here and I had no idea. BUN!'
The pair first announced they were going to become parents in September, when Aaron shared a picture of Lauren and her blossoming baby bump.
At the time, the 38-year-old star wrote alongside the cute snap: '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. ❤️👶🏻'
Lauren also took to her own account to share the happy news, with a montage of baby pictures of her and Aaron and a baby scan, which she captioned: 'Oh hi 🐣👶🏼👋🏼!'
Speaking about starting a family just after tying the knot in 2013, Aaron said that while they weren't in a rush, his wife Lauren would make a great mother.
He said: 'I think it would be a disservice to the world and all of our future children if Lauren didn’t have the opportunity to be a mother.
'Those kids would be very, very, very lucky to have her as their mom.'