Kardashian Baby Boggie: Pregnant Khloe Kardashian Shows Off Baby Bump in Flash Mob With Kim and Kourtney Kardashian

The 33-year-old star, who is expecting her first child with basketball player Tristan Thompson, hit the mall on Thursday with her sisters and pals for a bit of retail therapy. 

Proudly displaying her baby bump in a tight maroon bodycon dress and mustard coat, Khloe hid her eyes behind some oversized shades.

Her sister Kim later revealed that Khloe and Kourtney had surprised her with the flash mob as a surprise during their day out.

As Khloe joined in with the routine to Pussycat Dolls track Buttons, Kim sounded delighted with her surprise and took to Twitter to share the moment.

“And yes they were dancing in the flash mob! I was dying!!!! Like literally crying laughing and confused all at the same time. It was amazing!"

The scenes were all caught on camera by the family's reality show team, with the scenes airing on the latest series of Keeping Up with the Kardashians..