The actors reunited on Thursday at the Beverly Hills Hotel where they celebrated Rumer's birthday together with daughters Scout, 27 and Tallulah, 24. Tallulah took to Instagram to share adorable photo booth pics of herself with Moore and Willis in front of a playful pink background.
Demi recently poked fun at Bruce on a Comedy Central skit where she made light of their divorce and his some of his bad acting decisions. Scout posted a long message about her sister as well.
'I mean Planet Hollywood, Hudson Hawk, Striking Distance, campaigning for Michael Dukakis, turning down Clooney's role in Ocean's Eleven to focus on playing the harmonica?'
Demi Moore and Bruce Willis reunite to celebrate their daughter's 30th birthday. In the since-deleted video, the sisters sang the traditional song to the birthday girl before chanting, "We hope you come back sober!"
Bachelor contestant Nick Viall also shared a few behind-the-scenes videos of Bruce giving a speech to mark the occasion.
The Hollywood family continued the festivities into the evening where Willis joined his three daughters for dinner. "Just before we took this photo my dad said, 'hurry up, I have to fart, '" Scout hilariously captioned a slideshow of pics taken outside the restaurant.
The star went on to joke about Willis" parenting style and said, "Bruce is super generous. "When our daughter Rumer was a baby and it was his turn to change the diaper in the middle of the night, he would lean over and whisper to me, 'I'll give you a thousand dollars right now if you change that diaper, '" the 55-year-old quipped.