• Share
  • Tweet
  • Share

We already know that sisters Kendall and Kylie Jenner have their fair share of spats (because sibling life), but in the latest sneak peek from Keeping Up With the Kardashians, we see the 20-year-old model open up to her little sister about something that's been bothering her.

While talking about Caitlyn Jenner, the brunette beauty confessed that she misses doing certain activities with her father, and even admitted to being a little jealous of Kylie's relationship with Cait.

"I miss doing stuff with dad that we used to always do," Kendall tells Kylie. "Like the boyish things, like dirt-biking and, I don't know, the adventurous things. I just feel like you guys bond so well because you're super into makeup and I'm obviously not as into makeup as you."

Kylie suggests, "Maybe get your nails done together. You should just talk to her."

During a confessional, Kendall explains that she's so proud of how far Caitlyn has come, which is what makes her apprehensive about bringing the topic up. "I'm so happy that my dad is at a place where she's really happy and she's really comfortable with everything, and I don't wanna be the one to kind of get in the way of that."

She continues to tell Kylie, "I don't wanna hurt her feelings, so don't you think it's better to not say anything?"

"No," the 18-year-old responds, "You should just have a little conversation."

Watch Keeping Up With the Kardashians airs on Sundays at 9/8c on E!

PHOTOS: Kendall Jenner & Kylie Jenner's retro pics