Kylie Jenner and Hailey Baldwin rocked bikinis on Memorial Day, soaking up the sun and generally making this a planet worth living on.

The 18-year-old Keeping Up with the Kardashians star and 19-year-old sometime girlfriend of Justin Bieber had quite a pool party.

Best of all, Bieber was nowhere to be found!

Joined by a bikini-clad crew, with Instagram pics to document the experience, their toned bodies officially kicked off the summer season.

Sure, Southern California is basically one endless summer enjoyed by impossibly-good-looking young women, but just run with it, okay?

Hailey even struck a pose in her red, white, and blue swimsuit, proving that Donald Trump’s “Make America Great Again” slogan is absurd.

Not just because it’s Donald Trump, either.

What better place is there when you can virtually join a pool party like this one via your very own social media feeds? For free? Exactly. 

Oh, and there’s more. A lot more.

As if flaunting their assets (and mansion) didn’t make us jealous enough, the girls shared a close up picture of their hips, butts … and tattoos!

Kylie first gave us a glimpse of her ink in December 2015. The tat is the word “sanity” in red and written the International Phonetic Alphabet.

Obviously. She’s so artistic.

For her part, Hailey’s tattoo is of the word, “gente,” which means people in Portuguese, in honor of the young model’s Brazilian heritage.

Again, really deep stuff.

Joining the dynamic duo for their day of sun and fun? Sister Kendall Jenner, 20, and pals ​Jordyn Woods, Cami Morrone and Lauren Perez.

As for the boys, they were persona non grata for the most part (though Jaden Smith made an appearance later on, Hollywood Life reports).

Kylie posted the top pic of her and her four friends with the caption, “girl girls girls,” and maybe that’s for the best after all shes endured.

Given her high profile breakup with Tyga and alleged romance with PND, a drama-free girls-only weekend was what the doctor ordered.

Gotta do you sometimes.