Kris Jenner fans share wild theory she's had a BBL to 'claim family curves are genetic'

Fans of Kris Jenner are convinced she had a Brazilian Butt Lift in 2015 and have got a theory to suggest why she's hiding it from the public.

The 66-year-old businesswoman - who is a proud momager to Kourtney, Kim, Khloe, Kendall and Kylie - is speculated to have underwent the surgery - with some followers claiming the proof is out there in the form of pictures.

It's no secret that Kris' famous daughters are known for their perfectly curvaceous bodies and bums.

And after seeing the old snaps online, some have come up with a wild theory that Kris "took one for the team" and had BBL surgery to "claim it is genetics".

Kris Jenner pictured in 2015 with a fuller backside (GC Images)

Fans think she had BBL surgery (GC Images)

In an anonymous Reddit post, one user started a thread which was titled: "We need to talk about Kris' BBL, and why is she hiding it nowadays?"

They shared some snaps of Kris from over the years, which pictured her backside.

Fans were quick to jump to the comment section, with one person writing: "Do you think she did it, so the others could claim genetics? Even Kylie? She took one for the team."

"I kind of think she did it to validate her daughter's claims their butts are real," another speculated. "If three out of four of the girls have giant a**es but their mom has an average lady behind… the jig is up!"

Some people think she has had bum fillers to 'validate' her daughters' claims (GC Images)

Another shared: "OMG, how have I never noticed? I guess i was respectfully not checking for her."

A third wrote: "I thought she just had a mum bum lmao."

"She's kinda short and curvy, just like my mum, so I thought hers was natural this whole time," someone else commented.

And another chimed in: "Maybe because she’s gained weight? I think this is the heaviest she’s been in her life (I think she looks good).

Khloe Kardashian pictured with a smaller bum earlier this year (instagram.com/khloekardashian)

Kim Kardashian hides her 'smaller bum' with mirror selfie (kimkardashian/Instagram)

"I’ve noticed she’s been wearing very flowy, less tight clothes now more than ever before. She doesn’t show her arms anymore."

It's not the first time a Kardashian family member has been rumoured to have undergone a BBL.

Khloe was at the centre of speculation before her weight loss, with many commenting on how different her rear looked in her early 30s.

But the reality star has denied ever having bum fillers, much like her older sister Kim.