Kendall Jenner thinks it's wrong to call someone too skinny.

Kendall Jenner thinks it’s wrong to call someone too skinny.

Kendall Jenner has found a cause the entire fashion industry can get behind… discrimination against skinny people. Kendall should know; she’s model thin. But she says it’s not her fault she’s not plumper like her half-sister Kim Kardashian

Kim and her other half-sisters Khloe Kardashian and Kourtney Kardashian have made a business out of their yo-yo dieting. They’ve been losing the same 10 pounds for years.

But Kendall, 17, says she has just the opposite problem. “I’m trying to gain weight but my body won’t let it happen,” she says in the new Arabian edition of Harper’s Bazaar.

What’s more, she says she gets just as much heat about her weight as Kim, Khloe and Kourtney. “I’m constantly criticized for being too skinny,” she says.

Kendall Jenner, Natural Born Beauty

“What people don’t understand is that calling someone too skinny is the same as calling someone too fat. It’s not a nice feeling,” she adds.

But truth be told, if Jenner ever decided to become a runway model, she would be criticized for being too fat. As it is, she has a super athletic build that’s perfect for what she does, swimsuit modeling.

Kendall also responded to reports that her momager Kris Jenner makes the decisions about her career. While mom can be pushy, Kendall says what she does is ultimately her call.

My mom would always come to me and ask if I wanted to do something that she thought was amazing,” she says. “She’d be like, ‘Oh my god, you have to do this,’ and I’d be like, ‘No, no thanks!’

“I’ve always, always had a say and ultimately it’s my decision.”

Kendall famously blew off her mom when she insisted on throwing a blowout sweet sixteen party for her. Kendall demanded a lower key celebration instead, and got her way.

Kendall looks totally in control as well in her hot Harper’s spread photographer John Russo. She wears Roberto Cavalli, Calvin Klein, Marc Jacobs and Gucci.

Check out her photos and be sure to follow TheImproper on Twitter for all the latest fashion updates.