Kim Kardashian won't be walking down the aisle in a Vera Wang dress. Kanye West is reportedly calling all the shots when it comes to his wedding to Kardashian. He is said to be doing everything by himself including choosing what Kardashian will wear down the aisle.

According to Radar Online, West has banned Vera Wang from designing Kardashian's gown because he doesn't want any comparisons to her last wedding dress. Vera Wang designed three gowns for the reality star in 2011 when she married NBA star Kris Humphries.

Reportedly each dress was valued at $20,000 each but she got them for free in exchange for publicity on the E! special.

"Kanye doesn't want Vera Wang to design Kim's wedding dress because that is who designed her dress when she married Humphries," the source said.

"Even though Vera Wang is one of the top wedding designers in the world, Kanye won't have her design Kim's gown - even if it were offered for free! She's the only designer who is out of bounds," the source said. "He doesn't want any comparisons to Kim's past wedding dresses, especially because ever since he proposed the media has been having a field day comparing his engagement ring to the one Kris Humphries gave to Kim."

It was reported that both West and Humphries chose an engagement ring from designer Lorraine Schwartz. The rapper presented the reality star with a 15-carat diamond sparkler while the athlete popped the question with a 20.5-carat ring.

Reportedly Kardashian has already started shopping for a wedding dress. The source told Radar that she spent some time in Paris during Fashion Week looking at gowns and will be returning to the city to talk to designers.

Even though Vera Wang is no longer an option the 33-year-old new mom will be choosing from several other designers including Monique Lhuillier, Carolina Herrera, Marchesa, Pronovias, Ines di Santo and Reem Acra.

The source said West will definitely have a lot to say about the gown and will be giving his fiancé some suggestions.

"Kanye is a huge fashion follower and has been vocal about Kim's clothing choices, helping her craft a more streamlined, sophisticated style recently," the source said. "It's bad luck for a groom to see a bride's wedding dress before the wedding, but that doesn't mean Kanye can't inspire her with some ideas."