What has Khloe Kardashian done to her LIPS?

The Kardashians as a klan are not shy about their love of silicon enhancements – Kourtney has famously had a boob job, Kris Jenner loves her face lift, and Kim Kardashian is so keen on new procedures that she willingly had a vampire facial, whatever the hell that is.

But has Khloe Kardashian gone too far with her latest surgical procedure? Her lips look, quite frankly, massive. Could she have been taking a leaf out of baby sister Kylie Jenner’s book and getting them plumped up on the sly?

“Oh hey boo! Hey!!! Loving my hair by @jenatkinhair my face brought to you by @1maryphillips. □□□#HoochieHoops,” Khloe captioned this picture of her pillowy pout from Tuesday.

If you compare it to this one of her from three months back, her mouth definitely looks a lot bigger...

...but she quickly hit back at her Twitter followers who suggested she was looking different.

If you need to see more of the mysterious Kardashian lip-kurse, just take a look at this gallery of Kylie’s amazingly cushiony kisser before and after her alleged plastic surgery – surgery that she totally denies ever having done.

What do you think? Have Khloe and Kylie both had work on their pouts?