Nicole and Cameron were friends long before they married twin brothers Joel and Benji Madden. Nicole met Joel when she was 25. The couple welcomed two babies before they finally tied the knot in 2010. Cameron, on the other hand, met Benji much earlier, in 2004, but she was in a relationship with her then-boyfriend Justin Timberlake to take notice of the man she would later on marry.

A few years later after Nicole and Joel were married, the couple and Benji attended a barbeque that Cameron was hosting. Benji and Cameron met each other again and this time hit it off. They began secretly dating and in 2015, the pair got married in a private ceremony. From then on Nicole and Cameron went from being besties to sisters-in-law; something you do not see every day even in Hollywood.

The two sisters get along well, not because they are in-laws who have to see each other on family get-togethers but because they are true friends. Here are more interesting facts about the girls' friendship.

15 Nicole Introduced Cameron To Her Husband

According to hellomagazine.com, Nicole was the one who reintroduced Cameron to Benji Madden; reintroduced because the duo had met each a while back but had no interest in one other. They met a second time when the twins accompanied Nicole to a barbecue Cameron had invited all of them to.

14 There Is A Possibility That The Two Friends Would Not Have Ended Up With The Twins

Nicole married her Madden twin much earlier than Cameron did. In an interview with popsugar.com, Nicole admits that she tricked Joel into asking her out by pretending that she liked The Wire. Eventually, Joel found out about the lie and decided to forgive her. However, had she not told the lie, the two girls would probably not be married to the Maddens.

13 The Girls Hang Out Frequently Without The Twins

Nicole and Cameron frequently meet and hang out without the twins. Dailymail.co.uk reports that sometimes Joel and Benji go out of town for gigs but that does not stop the gal pals from spending time together. The two enjoy lunch dates and sometimes, they even go out for dinner together.

12 Their Friendship Is Truly Genuine

Nicole and Cameron were good friends prior to Cameron marrying Benji. Now that they are sisters-in-law, their bond is even stronger. Although the two see a lot of each other during family get-togethers, they also spend one on one time with one another. Many people including those at closerweekly.com can see that their friendship is genuine. For Nicole to have introduced her friend to her brother-in-law, she must also be a true friend.

11 Nicole Was A Big Fan Of Actress Cameron

In addition to being a good friend of Cameron, Nicole is also a big fan of Cameron’s movies. Ibtimes.com reveals that she is particularly obsessed with Cameron’s 1997 movie, My Best Friend’s wedding. The two even made a trip to Chicago where Cameron showed Nicole some of the locations the movie was shot.

10 Cameron Loves Being An Aunt To Nicole’s Kids

Joel and Nicole have two kids together. Their firstborn daughter was born in 2008 and their son was born a year later. Lifeandstylemag.com says that Cameron adores her niece and nephew and spends a great deal of time with them. The kids will also get to boast about having a cool aunt, which is if they have not already started.

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9 The Girls Vacation Together With Their Families

When Nicole and Cameron married the Madden twins, the Richies, Diazs, and Maddens became one big family. Nicole and Cameron have been meeting to plan a big family vacation for members of the three families. Lifeandstylemag.com reports that some of the destinations that the families are considering include Hawaii, Bahamas, and Mexico.

8 Cameron And Her Husband Always Help Out With Nicole’s Kids

The twins like spending time together and so do the girls since they were good friends before they married the twins. Therefore, the two couples spend a lot of time in each other’s places, which is an advantage especially for Nicole and Joel because the other couple can babysit their kids. According to intouchweekly.com, Cameron and Benji do not mind helping with the kids.

7 Cameron Looks Up To Nicole For Parenting Advice

Joel and Nicole sold photos of their babies to People magazine for $1 million. Cameron and Benji have no such plans. As reported by eonline.com, the new parents want to keep their baby’s life private. Nicole, on the other hand, can see baby Radix as much as she wants and offer Cameron some parenting tips which the new mom is hoping to get from her.

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6 The Two Women Live In The Same Area

This definitely explains why Cameron and Benji are always over at Nicole’s helping out with the kids all the time. The Madden twins and their respective wives live within the same area as disclosed by intouchweekly.com and hence the reason why the two girls are always spending time together.

5 Nicole Has Refused To Catch Baby Fever From Cameron

There were rumors that Nicole was catching baby fever after her sister-in-law gave birth to baby girl Raddick. Nicole who is already a mother of two is content with her life the way it is and is not thinking of adding another little one to her brood of two. Gossipcop.com says she confirmed this while on an interview with SiriusXM.

4 The Ladies Are Devoted Sisters-In-Law

Nicole will forever brag about the fact that she introduced Benji and Cameron to each other. She does not stop there though; popsugar.com says that Nicole likes seeing the people around her happy. She involves herself in almost everything she can including planning surprise birthday parties for her sister in law.

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3 They Are Both Into Healthy Lifestyles

Among the many things that these two sisters agree on, is living a healthy lifestyle. Instyle.com reveals that the inseparable pair takes hikes together. Both women have also expressed the importance of healthy living separately; Nicole has talked of eating gluten-free meals while Cameron has shared some of her healthy habits in a book that she has written.

2 The Two Are Southern Girls

Nicole and Cameron are both fashion icons. Nicole lives and breathes fashion as a designer. The mom of two has a line by the name House of Harlow while instyle.com says that Cameron has worked as an artistic director for Pour La Victoire. The two women are also from southern California and their roots show in their dressing.

1 They Both Enjoy Writing

Fashion is not the last thing these two bond over. According to instlye.com, the two moms are also authors. Nicole has written two books, Truth About Diamonds, which she released in 2006, and Priceless, which came out in 2010. Diaz also has a book, The Body Book but hers focuses on health.

Sources: hellomagazine.com, popsugar.com, closerweekly.com, eonline.com, instyle.com

NEXT: 20 Little Revealing Facts About Cameron Diaz And Benji Madden