Kendall and Kylie Jenner are back with more from their new clothing line. It's not for PacSun — though their Fall lineup for the brand [1] totally blew us away — and it's a lot smaller than their boho-inspired Topshop collection [2]. Actually, it's just two pieces (right now).

Kendall + Kylie [3] is a fresh new site where you can choose whose style you like best — Kendall's or Kylie's — and shop her own pieces. Of course, if you like both, you've got the option of stocking up on double the separates. Every week, the stylish duo will roll out two new designs, revealing them an hour earlier for loyal followers who arrange for an email to pop up in their inbox.

Read on to see what Kylie and Kendall designed this week — a romper and off-the-shoulder black dress — and see if you can pick a favorite. Then let us know in the comments: are you a Kendall or a Kylie?

— Additional reporting by Aemilia Madden

When you arrive at Kendall and Kylie's new site, you'll have to choose between both closets.

Romper From Kendall

Romper From Kendall [4] ($58)

Romper From Kendall

Romper From Kendall [5] ($58)

Off Shoulder Dress From Kylie

Off Shoulder Dress From Kylie [6] ($48)

Off Shoulder Dress From Kylie

Off Shoulder Dress From Kylie [7] ($48)

97 Tank From Kylie

97 Tank From Kylie [8] ($28)

97 Tank From Kylie

97 Tank From Kylie [9] ($28)

97 Tank From Kylie

97 Tank From Kylie [10] ($28)

Klub Tee From Kendall

Klub Tee From Kendall [11] ($28)

Klub Tee From Kendall

Klub Tee From Kendall [12] ($28)