KENDALL Jenner’s critics have been speculating that she may have had secret surgery on her derrière.

The 27-year-old model was lucky enough to attend the Vanity Fair Oscars after-party on Sunday evening and was filmed arriving with her younger sister Kylie Jenner.

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After posing for photographs separately, the two siblings held hands as someone filming told them: “I’m doing videos now.”

Kendall and Kylie looked back over the shoulders and grinned before running down the blue carpet and throwing their arms in the air.

Kendall was dressed in an archive Jean Paul Gaultier gold gown, which featured a crisscross back and fell to the floor.

The scalloped dress clung to the brunette’s slender frame in all the right places, but eagle-eyed critics were focused on her behind.

One person reshared the video on Reddit and asked: “I wonder if Kylie has that bow so we don’t see how botched her booty looks,” but others were quick to point out Kendall’s bottom.

“So now Kendall has hips and a bum? When will they stop?” one person wrote, suggesting she’s had surgery.

Using a nickname for Kendall, someone else said: “Candle is starting to get a booty too.”

And a third person pondered: “Mini bbl or sculptra plus padding in the dress.”

A fourth Reddit user claimed: “She can’t model if she gets one too big.”

Other people thought it was just the designer gown that made Kendall look like she had a fuller bottom.

“I think it’s just the dress,” one person said, while another wrote: “I just can’t imagine the back pain they must have from sticking their bums out constantly.”

Turning the attention back to Kylie’s bottom, someone else commented: “I found that she’s the only one with a nice bbl lol. It’s not giving like Kim and Khloe show me photos of it botched.”

Kylie opted for a custom Maison Margiela dress for the star-studded event.

The strapless gown was in a metallic silvery black, with a bow on the front bodice and a larger, draping bow on the back.

Kylie kept her makeup simple to keep attention on the statement gown, with her hair pulled back and large stud earrings as her only accessory.

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