"We're going to go to a family lunch, and then later tonight Kendall's having like 15 people over for a little girls' party. I don't know if it's even a party, but a girls' gathering," big sister Khloé Kardashian, 30, told PEOPLE while celebrating the launch of HPNOTIQ Sparkle in Beverly Hills on Monday. "It will be fun!"
The Kourtney and Khloé Take the Hamptons star is a proud big sister when it comes to her younger sibling.
"It's crazy because she's still so young, but then at the same time I'm like, 'She's so old because she's done so much,' especially in the past year," says Kardashian. "I'm so proud of her, and she's still such a good girl. She's just a goofy girl and I love that about her. I want her to stay that way."