Khloe Kardashian has laughed off the nickname "baby mama" that Rob Kardashian gave her.
The 29-year-old American television personality covered up the nickname slipup by reposting the picture and adding that in her 26-year-old brother's world, 'baby mama' and sister mean the same thing, EOnline reported.
Rob had posted a picture with Khloe on Instagram and referred to her as his "beautiful baby mama" in the caption.
