Kylie Jenner Lip Job
Kylie Jenner has denied reports suggesting that she has had plastic surgery. Getty

Kylie Jenner has sent the Twittersphere into a frenzy after she unveiled what appeared to be a newly- pierced nipple on Instagram.

The 17-year-old reality star, who is Kim Kardashian's little sister, raised eyebrows after sharing a selfie on Instagram wearing a tight purple halterneck top.

Eagle-eyed followers quickly noticed a protruding bar shape under her top– suggesting she may have treated herself to a provocative piercing over Christmas.

The image has since been deleted but not before it spread like wildfire and became her trending topic on social media.

Considering American law states that you need written permission from a parent or guardian to get pierced under the age of 18, her mother's Kris Jenner's were also called into question.

But it wasn't all bad. Some fans claimed the new piercing made her "hotter".

Jenner has been dominating headlines in recent months thanks to her romance with rapper Tyga, who is eight years older than her, as well as her alleged lip augmentation.

"How long are we gonna talk about this lip thing lmao," the teenager previously wrote during a twitter rant.

"Let's get a our lives together guys and talk about some important sh*t. Just talk about something new at least. I'm bored."