Chelsea Handler is one celebrity who had something to say about Kim Kardashian's very revealing Paper Magazine cover.

The former E! host posted a picture of her bare butt next to Kim Kardashian's. She posted the picture on Instagram, and in one fell swoop challenged both the reality star and the social media site.

"Can you believe more than 2 a** can fit on the same screen?" she said. "Guess which one's real. Your move, instagram."

Handler then took it one step further by posting another side by side picture of herself and Kardashian. While Kardashian's image remained the same, Handler has switched hers into the topless picture she had posted weeks before. The comedienne put the picture up a few times, and Instagram continued to remove it.

The fact that Kardashian's photo hadn't been removed confused Handler.

"Just so I'm clear, Instagram...it's ok to use nudity to sexualize yourself on your site, but not to make a joke?" she said. "I'm just so confused."

About an hour after she published the topless picture, Instagram had not yet removed it.

The first few times she posted the picture, Handler called the social media site sexist.

She then shared an image that Instagram sent her about familiarizing herself with its guidelines, but Handler didn't believe it was acceptable.

"If a man posts a photo of his nipples, it's ok, but not a woman? Are we in 1825?" she said.

Handler has shared various almost nude pictures of herself onto Instagram, and in October, she explained to Ellen DeGeneres why she likes to pose naked.

"I like to be naked because I don't take my body seriously," she said. "People do, and that's nice for them, but I think bodies are so silly."

The two women also talked about the shower scene they both participated in on "Chelsea Lately." DeGeneres was fully clothed while Handler was naked. Handler said that DeGeneres signed a contract and was supposed to be just as nude as Handler.

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