A lifetime of twin pics.
The look? An all-nude body suit (courtesy of sister Kim Kardashian's SKIMS shapewear company), a skin-colored corset and long dark hair were worn by the BFFs. And, as Kylie noted on Instagram, this identical look was entirely on purpose!
"Fun fact: we've been twinning since we were in middle school. we used to never leave the house unless we had a matching outfit on," the Kylie Cosmetics mogul wrote.
She added, "So get ready for a lifetime of more twin pics."
Alongside a different snap, featuring the same outfit, Stassie shared a similar sentiment: "twin 4 life."
Of course, this wasn't the first time that the Keeping Up With the Kardashians star has twinned alongside the social media star.
At the end of last year, the gal pals had us seeing double when they wore corresponding tangerine orange and powder blue fur-lined belted vinyl trench coats.
Thankfully, Kylie and Stassie have shared their many twinning moments on social media—and we've collected them all!
For Kylie and Stassie's BFF pics, scroll through the images below!
Looking good, ladies!