Just, why?

As we all know, Kim Kardashian announced that she would be launching her very own beauty line. And, as we also know, her little sister Kylie is firmly ruling that side of things with a very successful beauty range of her own. So, it was a little, or majorly, surprising that Kim would even consider a step in that direction. So much so, that it has ruffled a lot of Kylie fan's feathers. They've been quick to point out that it's a blatant copy of her sister's success.

If I was Kylie I'd be pissed at Kim like wtf

— shania ? (@shanialovexo) June 14, 2017

I love Kim but why would you make a makeup line when your little sister Kylie has a very successful one??? So now y'all compete basically...

— channingjudith? (@ChanningCJudith) June 14, 2017

I wonder if Kylie is cut at Kim for launching a beauty line

— Kate (@hellokate_c) June 15, 2017

So Kim is also having a makeup line , I wonder if Kylie's like omg why are you copying me Lol

— Jj♡ (@jackaiii) June 15, 2017

the episode of KUWTK where kim and kris tell kylie that kim's starting her own makeup line 2 months after their collab is gonna be GOOD!!!!

— sapphire (@SapphireSux) June 15, 2017

Bit booky of Kim to come out with a makeup line, kinda stepping on Kylie's turf

— K ✌? (@kaysquared_) June 15, 2017

So why would Kim come out with a makeup line when she knows Kylie has one? Like I would cut my sister if she did that to me

— K? (@ay_kaybay) June 15, 2017

Even Kylie has reservations about the move, with a source telling HollywoodLife:

"Kylie is proud, she feels like she inspired Kim to get into the make-up game. She never imagined there’d be a day when Kim would be following in her footsteps, it just shows how much things have changed. But there’s still competition between them, Kylie does worry that her big sister will come in and takeover. She likes that Kim is copying her but wants her to stay in her own lane."