Kendall Jenner, 15, Makes Runway Debut!

 Jeff Schear/Getty

Kendall takes over the katwalk!

Two days after younger sister Kylie modeled Abbey Dawn ensembles designed by Avril Lavigne at NYC's Fashion Week, it was Kendall Jenner’s turn to shine at the Sherri Hill Spring 2012 presentation.

"OMGGGG just finished my first ever runway show for @sherrihill!!! #amazing #imaddictedtorunway!" the 15-year-old tweeted on Wednesday night.

Now that both younger siblings having walked the catwalk, big sister Kim Kardashian couldn't be more proud.

"Must be emotional today bc when Kendall walked out on the runway I almost cried! I can't believe she's living her dream at such a young age," the 30-year-old tweeted.

Kourtney mirrored her sister's gushing sentiments, tweeting, "@KendallJenner seriously strolled like a major supermodel down that catwalk tonight at the Sherri Hill fashion show. All I can say is WOW!"

This isn't the first time Kendall has worked it for the camera in the name of fashion. The  lean and leggy teen is the face of swimwear designer Leah Madden's Summer 2012 campaign, which was shot in August, and previously, she has posed for Forever 21 with 14-year-old Kylie.

But even with her E! star status, the California native still gets starstruck at her own fame.

"Just drove through time square and started freaking out cuz I saw myself on a huge billboard! LOL (sorry, blurry)," Kendall tweeted later that night with a twitpic of a Keeping Up with the Kardashians marquee.

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