Following Kylie Jenner's 18th birthday on August 10, she had her first nightclub appearance in Montreal, Canada, where the legal drinking age is 18. Needless to say, momager Kris Jenner had some concerns.

In a new clip from Keeping Up With the Kardashians, Kris pleads with her youngest daughter to be on her "best behavior" during her club event. "My mom just won't stop checking up on me about it," Kylie complains during her confessional. "But I'm grown now. I'm 18. I can handle this on my own."

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When her mom points out the drinking age in Canada, Kylie responds, "I wasn't planning on drinking."

"Kylie is finally 18, and with that comes a lot of added responsibility, especially when there's alcohol involved," Kris says during her confessional. "So, I always worry about her, especially now."

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While Kylie said she wouldn't drink during her appearance at Montreal's Beachclub venue, she did Snapchat a bottle of Moet champagne with the caption "legal."

Here's an inside look into the reality star's birthday bash, which, of course, included several outfit changes.

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