It's depressing, but nonetheless true:
Kylie Jenner is all grown up.
Yes, the Keeping Up with the Kardashians star is only 17 years old (she can't even legally vote or buy tobacco yet!), but she's rocking hooker boots.
She's wearing a pot leaf necklace. She's posting so many revealing photos on Instagram that even half-sister Kim Kardashian likely thinks Kylie is going too far.
Now that's saying something.
It wasn't always this way, however. Not so long ago, things were simpler, albeit less interesting as far as fans of the First Family of Reality TV are concerned.
Kylie Jenner was not always the Queen of Racy Selfies. She was once a baby. She once needed her father, Bruce, to carry her on the red carpet.
Even a few short years ago, she only posed alongside her older sister Kendall.
In Kylie's defense, she has been in front of an E! camera since she was nine years old. She was thrust into the public spotlight before she really had any say.
Now she's simply making the most of it. Lewd pic and swelled-up lips style!
So before Keeping Up with the Kardashians Season 10 kicks off this Sunday, go back in time to the '90s, '00s and early '10s with Kylie via the above photo gallery.
In clicking through these classic throwbacks, hearken back to an era in which she always wore clothing and few, if any, people had ever heard of the Kardashians.
Those were the days. Now ... these are the days: