London, Jan 29 : Kim Kardashian, who is known for her bounteous butts, is worried about what effect pregnancy is going to have on her figure.

In the latest episode of `Kim and Kourtney Take Miami', Kourtney showed her sister how she will look when her baby bump gets bigger by shoving up a cushion under Kim's shirt, the Mirror reported.

Even though Kourtney told Kim that she'll be a yummy mummy, Kim said that it's going to be so awful and worried that her ass is going to get so big. (ANI)