Kylie Jenner When I Was 17 ...

3/18/2015 7:50 AM PDT

Kylie Jenner -- When I Was 17 ... (PHOTO)

17-year-old Kylie Jenner donned a revealing bathing suit during a photo shoot in the Hollywood Hills on Tuesday ... and did we mention she's 17? 

Last week, Kylie's 25-year-old boyfriend Tyga finally confirmed their relationship by posting a pic of 17-year-old Kylie with the caption, "Certain things catch your eye, but only few capture the heart."

It's unclear where the pics from this photo shoot will end up getting published, but we'd suggest ... Seventeen magazine.

Fun fact: Kylie Jenner is only 17-years-old.