Kim: 'Kourtney having a hard time'

Kim Kardashian has claimed that sister Kourtney is becoming frustrated with the amount of weight she has gained since becoming pregnant.

The Keeping Up With The Kardashians star is expecting her first child with boyfriend Scott Disick next month.

Speaking to Us magazine, Kim said: "[She is] having a hard time... She feels so big right now. She's just ready to have the baby.

"I think once you get to that final month, you are just so anxious to have the baby."

Kourtney previously admitted that she was worried about gaining too much weight while pregnant and revealed that she had put on around 26lbs so far.