Kylie Jenner Won't Shop Sister Kendall's Closet Because 'She'll Give Me the Most Uncomfortable Old Underwear'

"She'll give me the most uncomfortable old underwear, the worst sweats you've ever seen and anything that's so bad and old," says the star

If Kylie Jenner wants to borrow an outfit, sister Kendall Jenner is a last resort. That is, unless she wants some aggravation.

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“We always fight over clothes,” Kylie Jenner told PeopleStyle when we caught up with her to chat about her new matte-only nail polish collection for SinfulColors. The youngest Jenner added that they used to argue about “loans” more when they lived together, but now that they’re in their own homes, tiffs break out only when they’re visiting each other.

“I let her borrow whatever she wants,” says Kylie, 18. “She always comes through and is like ‘I need an outfit please,’ and I’ll let her borrow whatever. And then I go over there, and I’m like ‘Kendall, I need a pair of sweats to go home,’ and she’ll give me the most uncomfortable old underwear, the worst sweats you’ve ever seen and anything that’s so bad and old and small. And I’m like, ‘You’re so mean’.”

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That’s not to say Kendall Jenner disagrees that she and her sister have a hard time sharing clothes … although she does disagree about where the problem starts. When it comes to closet swaps, all of her sisters are “super generous minus Kylie,” she said. “Kylie and I always fight over clothes,” the 20-year-old model said. “It’s a problem. It’s ‘cause we grew up together and we just grew up fighting over clothes.”

That’s not the only thing they fight about. Kendall finds Kylie’s obsession with her phone, uh, a little much. “I know how annoyed I get with Kylie, for example, because she’s literally constantly on her phone,” Jenner told us. “Like, there’s nothing to look at, and she can find something to look at. And I hate it so much. So whenever I catch myself doing that, I put [my phone] down immediately.”

Kylie doesn’t think it’s so bad, though: “We fight about this all the time,” she said. “She always says that I’m on my phone so much, and I don’t think so. So we just disagree.”

Do you fight with your siblings over clothes?
—Sharon Clott Kanter