The 18-year-old model posted a picture of her hand on Instagram last night (21 January), debuting a never before seen inking of an animal skull on her middle finger.
However, the intricate design is not permanent, as Kendall explained that it had simply been drawn on with a Sharpie pen.
She wrote the reassuring caption: "don't worry, it ain't real people. creds to: @badwoodx #SharpieTat".
We bet her momager Kris Jenner is pleased to hear that!
This isn't the first time that she has tried out a Sharpie tattoo, as Kendall also had a giant dream catcher drawn onto her neck last July by the same artistic friend.
Could she be experimenting with different designs until she finds one for keeps?!
If the teenage reality star does need any advice on tattoos though, she could always ask her rumoured new boyfriend Harry Styles, since he has plenty!
Kendall and Harry are speculated to be an item after being spotted on a string of dates recently, including a secret rendezvous in the UK last month.
What do you think of Kendall's latest temporary tattoo? Let us know below, as the best comment from across the website each week wins £50!
Guess which celebs these tattoos belong to in our gallery.
Copyright: PA Images