Old habits die hard.

Bruce Willis and Demi Moore’s three daughters — Rumer, Scout and Talluleh Willis — have continued one childhood ritual into adulthood.

“We all still take baths together, my sisters and I,” Rumer revealed on Tuesday’s episode of the “What in the Winkler?!” podcast.

“And that’s just the kind of house that I grew up in.”

“People might think that that’s crazy and weird, but I don’t,” she added.

Rumer is 36 years old, while her younger sisters Scout and Tallulah are 33 and 31, respectively.

The confession came as the “Once Upon a Time in Hollywood” actress was discussing co-sleeping in bed with her 23-month-old daughter, Louetta.

Rumer said she hopes Lou will still sleep with her even as she gets older.

“I still sleep in bed with my mom,” she added, referring to Oscar-nominated Moore.

Rumer gave birth to her first child, whom she shares with ex Derek Richard Thomas, in April 2023.

In February, Rumer revealed she looks to Moore and Bruce as an example on co-parenting with Thomas after their breakup.

“Even when they split up, they created such a beautiful foundation of prioritizing my sisters and I,” Rumer said of her parents on Britain’s “Loose Women.”

“I never felt like I had to choose. Like, they never played against each other. We were a family, and we still are very much a family no matter what.”

She added, “Not only did I feel like that has set me up in my life to have such a beautiful foundation of my own family, but now, as I’m working through co-parenting as well, I feel deep gratitude for the example they’ve set.”

Moore and Bruce, who were married in 1987, eventually called it quits in June 1998.

The “Die Hard” star has since married Emma Heming Willis, and they share two daughters, Mabel, 12, and Evelyn, 10.