It looks as though Kylie Jenner is sparking plastic surgery rumors once again as the 17-year-old reality television star posted a new Instagram photo of her sporting much fuller lips on Saturday.

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The Keeping Up With The Kardashians star, who has been rumors to have gone under the knife after debuting a new look earlier this year, posted the selfie picture of her with not only much different-looking lips, but she also looks almost identical to her sister Kim Kardashian.

Many Instagram followers noticed the difference in her appearance and commented with, "Way too much with the lips you need to stop now. You're going to ruin yourself," to "Did Kylie draw bigger lips on herself? She looks so different."

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Meanwhile, it's also being reported that Kylie is supposedly jealous of her sister Kendall's modeling career.

According to British magazine Reveal on Monday, Kylie is having a hard time trying to find her "niche" while coping with her sister's success, as Kendall has managed to land lucrative modeling contracts in the fashion world, which include Givenchy, Marc Jacobs and Chanel.

"Kylie's growing increasingly jealous of Kendall and it's driving a wedge between them," a source close to the Jenners said, according to the Irish Independent.

The source added, "Privately Kylie has been complaining that she needs to find a way into the spotlight. She feels like all of her siblings have a niche and she's left out. Mom Kris [Jenner] is trying to find ways to get Kylie in the public eye. She's her 'shy one' and Kris suggested acting classes, but Kylie hasn't taken to the idea."

Tags: Kylie Jenner