Kylie Jenner

Kylie Jenner and Jaden Smith Get Flirty at the Justin Bieber Believe Premiere (PHOTOS)

Kylie Jenner and Jaden Smith are always keeping us guessing with their flirty friendship.

The Keeping Up With the Kardashians star says she and Jaden are just good pals, but we couldn't help but notice Jaden run up behind Kylie and grab her waist at the premiere of Justin Bieber's Believe in L.A. on December 18. While we'd love for the famous duo to start publicly dating (they're so cute together!), it looks like Kylie is keeping her love life on the DL.

"I always see articles about who i'm supposedly dating and who I'm not. As of now, I'm keeping that part of my life as personal as possible," Kylie wrote on Twitter recently.

Kylie and Jaden were also spotted going shopping together in West Hollywood in November, and Jaden even put a necklace around Kylie's neck. Aww!

Click through the gallery to see Kylie rocking a skirt with a major slit on the purple carpet, and don't miss Jaden getting extra flirty with her. What do you think of their friendship? Sound off!