Rumer Willis is expecting her first child with partner Derek Richard Thomas.
The exciting announcement was revealed by the star's famous mum Demi Moore, who took to social media to share the sweet news.
Actress Demi, 60, uploaded a number of cute snaps of her 34-year-old daughter showing off her baby bump alongside her beau.
The first image saw Derek lovingly kiss his partner's belly as he cradled the bump. The next was a silhouette of Rumer behind flower petals, while the third showed Derek with a hugely excited look on his face as he hugged Rumer's tummy.
Demi captioned her post: "Entering my hot kooky unhinged grandma era," with Rumer quick to comment back to her mum, declaring her love for her.
Rumer, whose dad is Bruce Willis, also posted the same snaps to her own account as was met with an influx of congratulatory messages.
Among those sharing the love was Nicola Peltz Beckham, who shared a string of emojis with love hearts for eyes.
Actress Brittany Snow was also on hand to write: "Congrats beauty," while actor Aaron Paul gushed: "I’m so happy for you my friend. Such beautiful news. Congrats!!!"
Also getting involved in the love-in was Rumer's younger sister Scout, who wrote: "I'm weep."
Dad Bruce's wife Emma Heming Willis also took time out to share the news on her own page. Sharing the snaps, she wrote: "Baby news is happy news!!! Congratulations @rumerwillis and @derekrichardthomas We are elated over here."
Rumer and Derek were said to have started dating earlier this year and took to Instagram last month to share a number of loved-up photos, with both sharing them on their own page.
They both shared the same caption for the post, which included several emojis, such as a red love heart, a lobster, a ladybird and a worm.
Rumer previously called her man "the most talented singer and songwriter I have heard in a very long time (maybe ever)".
He seemingly repaid the love in his own post on her birthday in August as he gushed she was a "magical human" who has "filled my life with joy and peace".
He continued: "Everything is just so easy with you. We sing, we dance, we play and most of all we laugh. Thank you for being you.
"I'm so glad you came into my life!"
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