Kourtney Kardashian definitely meant well when she insisted on helping Kylie Jenner plan her first housewarming party.
It's just that sometimes big sisters—like moms—can be annoying. On Sunday's Keeping Up With the Kardashians, Kourt gets a little too bossy—especially when she suggests Kylie's beloved dogs Norman and Bambi "go on like, a vacation for the day" so she can throw what's her idea of a perfect party.
Kylie's not too happy about this, nor is she thrilled when Kourtney tries telling her which candles to light and where she needs to put flowers. Kourtney wants her baby sister to have "the ultimate housewarming party," admitting, "I'm like living my life through you!"
But Kylie, "just wanted like simplicity," she says, "and I just kind of wanted to do it my way."
"But my way is the best way," Kourtney quips.
Kylie agrees for Kourtney's amusement, but it's clear she's sick of her never-ending, unsolicited advice. "I don't know how many times I have to say I'm grown now," she says to camera. "I'm 18. I can handle this on my own."
But Kylie's figured out a trick for how to deal with her family—especially in situations like this one with Kourt. Watch the clip above to find out what she does.
Plus, tune in for a new episode of Keeping Up With the Kardashians this Sunday at 9 p.m. on E!