When it was announced that Nicole Kidman and Reese Witherspoon were going to co-star in the hit TV show Big Little Lies, we knew they’d make good on-screen friends. What we weren’t prepared for was the real life friendship that blossomed between the actresses.

The duo has become the definition of BFF goals, whether they’re celebrating milestones together or goofing around on set. So of course, for Kidman’s birthday, Witherspoon posted the sweetest Instagram.

Wishing a big happy birthday to my dear friend, the one and only, mega-talented, #NicoleKidman!!! I hope you have a gorgeous day filled with laughter and love. Love you, lady!! A post shared by Reese Witherspoon (@reesewitherspoon) on Jun 20, 2017 at 9:32am PDT

“Wishing a big happy birthday to my dear friend, the one and only, mega-talented, #NicoleKidman!!!” she wrote. “I hope you have a gorgeous day filled with laughter and love.”

While this message is certainly lovely, this is hardly the first time Witherspoon as sent some Insta-love Kidman’s way.

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In honor of Kidman’s birthday (and the pair’s friendship), scroll through some of our absolute favorite Kidman/Witherspoon Instagram moments, and see the cuteness for yourself.