So it was no surprise that she was her 20-year-old daughter Tallulah Willis' choice adviser when she stepped out to get her nose pierced in West Hollywood, California, on Friday.
The pair were joined by Demi's eldest daughter Rumer Willis, 26, as they made a stop at the popular Body Electric Tattoo & Piercing parlour to check out body jewellery.
Already sporting a ring in her nose, Rumer entered the Melrose Avenue store in a cream leather jacket with tasselled arms, which she teamed with navy skinny jeans and black booties.
With a black hat covering her long blonde hair extensions, the actress covered her eyes with a pair of round-framed sunglasses as she toted a black handbag.
Inside the parlour, she met with her mother and sister, who wore a baggy red sweater and a green beanie over her shorn locks.
Demi, 52, wearing a pair of black-rimmed glasses and a grey coat with black leggings, was seen talking with her daughters at length as they perused a number of items on offer.
But after a considerable amount of time spent browsing, Tallulah ended up leaving without her planned piercing, as she couldn't find anything that she liked.
Demi, who is also mother to 23-year-old Scout, has been enjoying a new romance with 28-year-old rocker Sean Friday.The couple first went public in January 2014 while on a romantic trip to Mexico alongside friends and Demi’s daughter, Rumer Willis.
The pair have kept a low profile over the past year and are rarely seen out together, though they were pictured putting on a loving display in May after one of Sean’s gig and a the De Re Gallery opening event in West Hollywood.
Demi was previously married to Ashton Kutcher for six years, until their 2011 split.
