Better late than never!

It seems like all of the Kardashian sisters have hopped on the big butt bandwagon, following in Kim and Khloé Kardashian's footsteps — even Kylie Jenner and Kendall Jenner — and now finally, Kourtney Kardashian is joining in on the fun, too!

The mother-of-three admitted on Instagram that her "next mission" is to get a butt like 30-year-old Khloé.

kardashians

But considering the 35-year-old is so petite, we're not sure if KoKo's larger-than-life booty is the best fit. Have you seen the reality star's junk in the trunk lately?!

Take a look and see her transformation below!