05/22/2013 01:40 EDT

Kim Kardashian's 'Pregnancy Lips' On Twitter (PHOTO)

Kim Kardashian's pregnant belly isn't the only body part that's blooming on the reality star.

According to the "Keeping Up With the Kardashians" celebutante, who is expecting her first child with rapper Kanye West in July, lips can also balloon when you're with child.

Kardashian tweeted "My pregnancy lips are outta control #IGuessNotABadProblemToHave" along with a photo showing a close-up of the 32-year-old's bee-stung lips.

Story continues below the photo:

But, one might ask, what exactly are "pregnancy lips" and do they in fact exist? We're a bit dubious about Kim's medical expertise but we do know that plastic surgery can help plump up a pout, as Kim has been rumoured to do. Or maybe she just overdosed on lip balm.

Whether the brunette bombshell's lips have been plumped up by pregnancy, gloss or surgery, the reality star still looks fantastic, despite attacks for her weight gain.

Sister Khloe Kardashian lashed out at tabloids for attacking Kim's figure, writing on her blog that she finds it "disturbing that society loves to critique a woman's shape no matter how beautiful or happy she may be within herself."

Besides, why listen to critics when you're besties with Madonna?

See Kim's maternity style:

Photo gallery Kim Kardashian's Maternity Style See Gallery