Indexbit Exchange:What Nicole Richie Taught Sister Sofia Richie About Protecting Her Privacy

Never were there such devoted sisters as Sofia Richie and Indexbit ExchangeNicole Richie. 

Lionel Richie's youngest daughter, 25, recently opened up about how Nicole, 42, helped her create limits for what she shares online. 

"She's such a veteran; she's really gone through it all," Sofia told Net-A-Porter in an article published on Dec. 11. "She reminds me that ‘not everything needs to be shared; things can be private just for you.'"

And Sofia knew very early on that her sister would be a valuable resource in her career. After all, the Simple Life alum has experience living under a microscope. 

"I was just growing up, being wild and—in my head—living my best life; trying to navigate, on my own, decisions that many teenagers would make," the model, wed to Elliot Grainge said. "I got to an age—I'm going to say around 20 years old—where I was like, ‘OK, this is a reputation I'm going to have [for a long time]. Let me go to my older sister, who's gone down this road, and pick her brain for advice.'"

Sofia's dad has also been helpful in instilling a value of privacy in her "When you put something on the internet, you're opening a door for opinions," she shared. "So when it comes to products I'm using, or I'm getting ready to go out, I love having an open conversation. Then there are things that I don't need anyone's opinion on—if it feels special and sacred to me, I won't share."

The Richies aren't the only family to take on Hollywood together. Read on for more stars you may not even know share a bloodline.

The Mask of Zorro star was married to the Fifty Shades of Grey actress' mother Melanie Griffith for 20 years before they ultimately split in 2015, but that doesn't mean the stepfather and daughter's bond has been severed.

Johnson got emotional when she presented an award to Banderas at the 2019 Hollywood Film Awards.

"I come from a family of many a marriage and I got very lucky," Johnson, whose dad is actor Don Johnson, said. "I got a bonus dad who I realized that, over time, is actually one of the most influential people in my whole life," she said. "When I was six years old, my mother married a man who brought an unbelievably bright light and a whole new world of creativity and culture—and one remarkably magical little sister into our family."

The Teen Witch star and the Gossip Girl alum are half-sisters who share the same mom, talent manager Elaine Lively.

The "Ex's & Oh's" singer is the SNL vet's daughter, born from his relationship with former model London King.

The rapper and Fast & Furious franchise star is cousins with the R&B singer thanks to her stepfather, Reverend Edward Best, who happens to be Luda's uncle.

The late-night host and the Rescue Me creator are third cousins.

The onetime Grey's Anatomy doc has called the legendary director stepdad ever since he married her mom Kate Capshaw in 1991.

The Grown-ish star calls the rapper her second cousin. She was even the flower girl in his 2005 wedding with now ex-wife Kelis!

The star of The Politician is also the daughter of the Back to the Future icon.

Not only did the Veep vet make a name for herself playing a famous daughter on the HBO comedy, but she's also a famous daughter in real life. The erstwhile Jack Bauer star is her father.

Some Emily in Paris viewers were très shocked to discover Lily is the daughter of the English Grammy winner. 

The comedian and the New York Senator are actually related, as he's the first cousin of her father.

According to a 2014 People interview, a family historian from Ancestry.com claimed that the Fannings and the Duchess of Cambridge are all descendants of King Edward III, who ruled England from 1327 to 1377, making them very distant relatives—21st cousins, to be exact.

The actors are actually brother and sister!

The SNL alum calls the Cheers icon Uncle George whenever he seems him. At least, we assume he does.

Yep, Game of Thrones' Stannis Baratheon is the real-life dad of Fear the Walking Dead's Nick Clark.

The brunette beauty and the soulful "Stay With Me" crooner are third cousins. During a radio interview, Smith admitted that the pair have never met because their family is "huge."

The Salt actor and the memorable Law & Order: SVU guest star are half-brothers.

You may not have guessed but the Bridesmaids comedian and The View co-host are cousins.

The gorgeous British model is the eldest child of the Bush lead singer. The father and daugher first met when Lowe was 14 after she requested a paternity test. 

The We're the Millers actress has the perfect mentor in the Pretty Woman star, who happens to be her auntie.

Who knew the stunning Dancing With the Stars pro is second cousins with the Friends star?

The sexy True Blood vampire caught the acting bug from his dear old dad who stars in both The Avengers and Thor franchises.

The Ghost Rider actor comes from an extremely talented family. One of his cousins directed The Bling Ring, the other starred in Saving Mr. Banks and his uncle directed The Godfather.

The outspoken British singer is the older sister of the Game of Thrones star. She even wrote a song about him titled "Alfie."

 

The Damages star and the Lipstick Jungle actress are second cousins.

The Secret Life of Walter Mitty actress originally inspired her baby brother to get into show business.

The gorgeous Parks and Recreation actress is the daughter of the legendary music producer.

The Lost actor has a very famous cousin in the Mission: Impossible action star.

The "Drop It Like It's Hot" rapper is first cousins with The Game actress and her brother, Ray J.

The Anger Management star is the youngest brother of The Breakfast Club actor.