Pose for the camera now!
Just about a week before her 18th birthday, Ky Ky took a snap of herself wearing a strappy black bikini as she got ready for a pool day with Kendall Jenner!
Our favorite part of the picture is that she's planning on swimming with full makeup, nails, and even some bracelets -- HA!
Never change, Kylie.
[Image via Kylie Jenner/Instagram.]