We already knew that Kylie Jenner's lip kit is seriously all the rage, but this launch certainly proves it!

Fans logged onto the 18-year-old's website in a stampede for the company's fifth launch. And with over 100,000 active customers on the site just moments after the sale began, it's certainly no surprise that the lip kits completely sold out in just 16 short minutes.

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“I get really anxious," the makeup mogul explained, "I don’t want people to get mad at me if it sells out really fast."

And while most fans were pretty excited for the anticipated launch, no one had quite as much enthusiasm as momager Kris Jenner. “It’s like sex," the 60-year-old said, "It feels really good and then it’s over.”

We think the confusion on Kylie and Tyga's faces speaks for itself on that one…

Click through the gallery above to see pics from the Lip Kit launch!