Kim Kardashian and Kanye West
Kim Kardashian and Kanye West: The couple have been seen around Paris ahead of their lavish Florence wedding. Reuters

Rapper Kanye West is reportedly having cold feet about getting married and is stressed about saying the vows.

West and American reality television star Kim Kardashian will walk down the aisle in Florence, Italy on 24 May.

According to Hollywood Life report, the 36-year-old Kanye is worried that he's "going to be a mess" and he's "jittery."

"Kanye was a nervous wreck last night because he was trying to memorize his vows that he'd written more than a year ago to Kim. It was like four or five pages long and he wants to remember every single solitary line so that he can look Kim directly into her eyes as he's professing how much he loves her," a source said.

"He's going to be a mess, literally. He's real jittery and even though he's a man and wants to be in control and keep his composure when he's looking into his brides eyes, I can assure you, without a doubt, he will crack. He will be in tears because the man is seriously in love with Kim that it's ridiculous," the insider added.

The Keeping Up With the Kardashians star and West, who welcomed daughter North in June are reportedly planning to expand their family.

"Kim and Kanye want to conceive on their wedding night. They have so much love for each other that they want their wedding weekend to be symbolic in the form of another child," another source, close to the Kardashian family told the publication.

"If possible, they would want all of their children to be conceived in different parts of the world, but especially in Paris or Florence," the insider said.