Out of all the television shows in all the genres through the years, there is one that seems to be more popular, more celebrated, and more beloved than just about all the rest. That show is Friends. The exciting setting, the array of significant others, the relatable ups and downs, and the actual friends helped make this series a success.

Of course, two of the stars of Friends were Jennifer Aniston and Courteney Cox, and these two amazing actresses are pals in real life! While all of the main cast members have stayed close, forever bonded by their time on the show, these women have a bond that goes deeper.

Why? How? Since when? Well, keep reading to find out, because this list tells everyone everything there is to know about Aniston and Cox’s friendship. From when they met (and their times behind the scenes on Friends) to marriages to the present day, their journey has been thrilling and so sweet.

While Rachel and Monica remain two of the fave TV characters and BFFs of all time, the celebs who played them are super-close and super-awesome.

20 At First, They Were Considered For Each Other's Parts On Friends

While years have gone by and they've moved onto other roles, Aniston will always be known as Rachel and Cox will always be known as Monica. However, according to an interview with Collider, Cox was considered to play Rachel, but she wanted to play Monica. Aniston wanted to play Rachel, so “it worked out perfectly”.

19 And They Are Really Good Pals IRL

While these actresses are best known for playing friends on TV, they became friends in real life. While audiences at home were getting to know (and falling in love with) these characters, the stars were meeting and forming bonds, on and off the set. Years later, their friendship just keeps getting stronger.

18 They Clicked BTS And Watched The Show With Cast Members, Eating The Same Salads Together

According to E Online, the cast got together each week to watch the show, and during this time in their lives, they would eat the "Jennifer" salad, which was a Cobb with turkey bacon and garbanzo beans. Yes, they clicked and wanted to hang out BTS and IRL.

17 They Have Kept In Touch With Their Co-Stars

As mentioned, and as fans know, the stars of Friends - Jennifer Aniston, Courteney Cox, Lisa Kudrow, Matt LeBlanc, Matthew Perry, and David Schwimmer - have kept in touch. A couple of times, they've even posed for group photos. These pics just about break the Internet when they are shared online.

16 But Their Bond Has Been Bigger Than All The Rest

Out of all of these stars, though, one real-life friendship was bigger and deeper than the rest, and that was the friendship that Aniston and Cox had...and still have today. Just as their characters went through highs and lows together on the show, Courteney and Jen have been through real-life ups and down together.

15 They Simply Have Fun Together, Laugh And Are Inseparable

Once, when asked about her friendship (by TV Week) with Aniston, Cox said, “we just have fun, we laugh, we're inseparable, and it's great”.

While some relationships can be complex and difficult to maintain, it sounds like this one is simple and meant to be, which is so cute.

RELATED: 10 TV Mother-Daughter Relationships That Will Have You Missing Your Mom

14 They Help Each Other Through Difficult Times 

Life is not always easy, even for the rich and famous. As true friends, these two women have helped each other through some very difficult times. One example would be public splits, as Aniston told More Magazine that she slept in Cox’s guest bedroom a lot.

13 They Prove What Real Friendship Is All About

Another way to know that these women are real friends is through another quote found in More Magazine; Aniston said that Cox never judges or scolds and is, instead, “extremely fair, ridiculously loyal and fiercely loving”. That certainly sounds like a deep and drool-worthy connection!

12 Jennifer Is Courteney’s Daughter’s Godmother

Cox and David Arquette had a daughter together in June 2004, whose name is Coco. And Aniston is Coco’s godmother. Not just anyone is asked to take on this role, making this further proof of the closeness of these two stars who were on Friends.

11 They Served (Or Will Serve) As Each Other’s Maids Of Honor

They also asked each other something else very important, since they served or will serve as maids of honor for one another! Cox had this job when Aniston married Justin Theroux in 2015, and Aniston will have it when Cox ties the knot with Johnny McDaid.

RELATED: 10 Huge TV Shows That Defined The 1990s

10 They Know How To Have A Good Time And Poke Fun At One Another

Once upon a time, Cox uploaded a picture of the stars of Friends and tagged them on Instagram. However, Aniston did not have an account until very recently. So, when the photo got shared, Cox put “#seriouslyjen?” in the caption, showing that these two poke fun and have fun!

9 They Are Very Similar

Obviously, as pals, these two leading ladies have similarities…like their looks (well, at least in this one image)! On Aniston’s birthday, Cox shared another interesting pic on Instagram; in it, she had on a blonde wig and glasses, which made her morph into her bestie!

8 They Have Friends In Common

They have other friends, too, and some of these are shared, which is extra fun.

This is just like in real life, when we hang out with mutual friends, and just like on the television series, when the Friends hung out with people they all knew.

RELATED: 10 'Friends' Quotes About Friendship That You Can Share With Your BFF

7 They Are The Highest-Paid TV Actresses Of All Time (Along With Lisa Kudrow)

Here is an additional fact about Cox, Aniston, and Lisa Kudrow (who played Phoebe Buffay) on Friends; these three women are the highest-paid TV actresses of all time. This probably doesn’t actually have anything to do with their friendship, but it is surely a nice honor to share!

6 They Even Honeymooned Together 

Again, when Aniston and Theroux wed one another back in 2015, they had a unique honeymoon; they invited people such as Chelsea Handler, Jason Bateman, and (of course) Cox to a resort in Bora Bora. That is authentic and one-of-a-kind and super-generous friendship right there.

5 They Have A Group Text With Kudrow

Everyone who loves this TV show has imagined what it would be like to hang out with these people, on the series or IRL. And, if it happened in reality, it could end with a group chat, as these two women have a group text with Kudrow.

4 Jennifer and Courteney Travel Together

Something else to know about Aniston and Cox is that they travel together. This is a common activity for friends to do together…but when these women do it, paparazzi try to get shots and the media reports on it. Maybe some people are quite jealous of these trips because they wish they could go along.

3 They Do Hang Out Together

Photographs and articles have shown, through the many years that they have been friends, the Aniston and Cox have often hung out together. From lavish vacations and meals to 'mini' cast reunions and shared kisses, they definitely enjoy spending time together.

2 They Take Selfies Together

For the public, one of the best parts of their bond is that selfies sometimes get taken and shared. It may be of just Aniston and Cox, it could also feature Kudrow, it may display other celebs, or it could highlight the entire old gang!

1 They Will Star In A Reunion Together

And, of course, news recently came out that a reunion television series of Friends is coming to HBO Max. Fans can hardly wait to see what these characters are up to now and to, once again, see these amazing actresses share the screen, just like in the good old’ days.

NEXT: 10 Times Ross And Monica's Parents From 'Friends' Were #ParentGoals