The former TOWIE star - who recently announced her second pregnancy - indulged in some serious chilling as they snuggled together while watching yesterday's (9 October) X Factor.
Talk about the perfect Sunday evening!
Sharing the black and white photo on Instagram, Billie wrote: "All cosy tucked up in bed watching Xfactor" along with a heart-shaped emoji.
In the image, we can see little Nelly looking pretty comfortable wrapped up in bed, while Billie poses for the camera in her pyjamas and shows off a perfect make-up free face.
It must be that pregnancy glow (or just her lucky genes, sigh!).
Last month, In The Style designer Billie revealed that she was expecting her second child with fiancee Greg Shepherd. Taking to Instagram the share the exciting news, the Essex girl posted a cute family photo of Greg, Nelly and herself on holiday, all looking down at Billie's baby bump.
Along with the image she simply wrote: "And then there were four".
Since the news, sister Sam Faiers has expressed her delight at becoming an auntie for the second time.
The co-owner of Minnies Boutique posted a photo of herself cradling Billie's bump, writing: "Me & my beautiful sister, I am so excited to become an auntie again. Baby no2 #blessed @billiefaiersofficial @gregory_shep."
But despite her excitement, Sam isn't quite ready to have her own second child just yet.
Speaking to Reveal last week, she explained: "Me and Paul want a big family, but our priority is to find a family home first. Once we do that, I think we'll definitely want another baby. I'd like four or five and Paul would like six!"
We can't wait for the Faiers' brood to expand even more!