Kim Kardashian's Sisters Hate Kris Humphries

Being Mr. Kim Kardashian can't be an easy feat.

But when Kris Humphries said "I do" to the reality star in August, he didn't just get a wife: He got her whole family! But sources tell the new Us Weekly -- on stands now -- that Humphries hasn't exactly won over the tight-knit Kardashian clan.

PHOTOS: Sexy pics of the Kardashians and Kris in Bora Bora!

An April get-to-know-you family trip to Bora Bora with Humphries, 26, wasn't exactly paradise.

The athlete criticized Kourtney, 32, for being a "slave" to her son Mason, 21 months. His constant roughhousing with Kim also rubbed her sisters the wrong way.

PHOTOS: Kim and Kris' whirlwind romance

"It irks the girls that he's always tossing Kim around," a source said. "He's like this weird, big clumsy oaf."

Says a Humphries pal, "He feels the cold shoulder from Kourtney and Khloe, but he only cares about Kim. With Kourtney and Khloe, he's not going to kiss their a---- to fit in."

But insiders remain hopeful that Kris will learn to fit in.

"He has basically signed up to be part of the Kardashian brand, and that's not an easy transition," says a Kardashian source. "He may not be a natural fit, but he really loves Kim."

For more on Kris' strained relationship with Kim's family check out the new Us Weekly, on stands now!

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