Khloe Kardashian Incest: 'KUWTK' Star Jokes About Odd Topic With Brother Rob [VIDEO]

Khloe Kardashian recently made an odd comment about incest.

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After her brother Rob Kardashian featured her as his Woman Crush Wednesday, Khloe took to Instagram, where she shared a screenshot of Rob's post with fans and made an inappropriate joke.

"Totally a normal brother/sister relationship. Incest is best!!!!” she wrote, along with the photo Rob posted of her arriving to the gym in a pair of black leggings and matching hoodie. Khloe also tagged the photo with "Hey Boo Bey."

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Khloe and Rob have always been close, as they are the two youngest of the Kardashian children. Even now, the pair are reportedly living together.

This isn't the first time Khloe has spoken about her odd relationship with Rob. During her hosting takeover on the Chelsea Lately show in April, Khloe joked about Rob not being her type.

"Rob’s been on my mind a lot lately because we’re currently living together," Khloe said during her monologue."No, we’re not sexually involved. My brother’s not nearly black enough for me!”

Rob has also got in on the action more than once. In addition to his WCW post on Wednesday, the sock designer shared another photo of his sister earlier this year, telling fans on Instagram how great she looked on the cover of a magazine.

Along with a photo of Khloe on the cover of Cosmopolitan Magazine UK, Rob wrote, "My beautiful baby mama [Khloe Kardashian] looking fine as always on the cover of [Cosmopolitan UK]."