On the upcoming episode of Keeping Up With the Kardashians, rapper and fashion designer Kanye West offers his girlfriend Kim Kardashian a proposition she can't refuse: if she agrees to throw out her clothes and give it away to charity, he will buy her a new wardrobe.

As Kim rifles through clothes and has a hard time trying to decide what to get rid of, West says, "But babe, you really gotta clean out everything."

"What about this joint right here?" he says referring to a designer purse. "Oh, hell no!" he adds.

After Kardashian appears upset about the clean-up process of creating donation piles filled with items she still treasures, West's personal stylist Renelou Padora, enters the 31-year-old's home with clothing racks of new clothes, West screams "Look how dope this s--t is!" while going through the new clothes that have just arrived.

"I like that top, it's like 'Yo, I'm getting on best dressed lists now. I'm stepping all into this territory,'" the 35-year-old adds when Kim tries on a new top.

"I think it's so ironic that I'm always giving my friends their closet makeovers," says Kardashian at the end of the preview trailer. "So for the roles to be reversed, it's like, Oh my God."

Ever since Kardashian began dating West five months ago, her sense of style has taken a dramatic turn. The reality star has appeared in the fashion press more than ever for a personal wardrobe makeover, courtesy of West, that includes more sleek, formfitting designs. The couple has been photographed on the red carpet together in matching minimalist looks of mostly all black or all white since they have been romantically linked.

When Kardashian attended this year's Cannes Film Festival with West to screen his film short, she wore a gold-embellished dress handpicked by him to complement his all-white outfit. The pair's coordinated looks created immediate buzz in the fashion press.

Kim Kardashian made a cameo in the music video for Kanye West's "I Wish You Would/Cold" which was posted on Youtube on Aug. 13. Kanye rapped, "I'll admit I fell in love with Kim / Around the same time she had fell in love with him."

On Aug. 7, the hip-hop artist announced he had written a new song for his main squeeze called "Perfect B-tch."

In addition to inspiring songs and appearing in music videos, Kardashian has also become a part of her boyfriend's love for fashion. She's been photographed numerous times in clothes and shoes designed by West, and he was seen giving her fashion advice on her reality show, "Keeping Up With The Kardashians."

Watch more of Kardashian's closet makeover courtesy of West in the preview video.

The full episode of "Keeping Up With the Kardashians" airs Sunday at 9 p.m. (EST) on E!