IT HAPPENED!! Caitlin Jenner FINALLY TOOK THE PLUNGE . . . She Got BUTT IMPLANTS Like The Rest Of The Kardashians!!!

Caitlyn Jenner was the one of LAST Kardashians with her natural BUTT - now that is changed.

MediaTakeOut.com obtained a pic of Cait in Malibu yesterday showing off her latest purchase - some new cakes.

Caitlyn's stepdaughters Kim and Khloe have implants, so does her ex-wife Kris and their daughter Kylie.

We're not going to comment on how the cakes look on her.