Kylie Jenner is a fan of tiny, red tattoos.
She recently took to Instagram to reveal the latest addition to her collection: a matching 'M' finger tattoo with BFF Jordyn Woods.
The pair are yet to reveal the meaning behind their tiny tats, so we've racked our brains to think about some of the possible explanations as to what 'M' might stand for.
Here are nine of our best suggestions (not all are entirely factual...)
Every month Kylie will inscribe the first letter of the month on her body. She will become the first human calendar in history and will never forget what month it is.
We all know that, sometimes, the only way to get through a busy day is with chocolate. Are Maltesers Kylie's favourite and the 'M' a tribute to the chocolatey treat?
'M' is Kylie's way of remembering how to recount the days of the week.
Calcium is very important to Kylie. The 'M' is a reminder to drink her daily glass of milk.
Kylie has long held a secret love of maths. The 'M' is her way of finally telling the world she is a mathlete and proud.
Now she's entered the world of adulthood, Kylie can often forget her household chores. 'M' is her reminder to mop the floors before she leaves the house.
The moose is Kylie's favourite animal. 'M' is a promise to herself that she will one day retire from the world of celebrity and open a moose farm, where she happily live out the rest of her days.
In a world of caviar and canapés, it can be difficult to remember your five-a-day. 'M' is reminder to herself to eat a melon in order to stay in tip-top health.
Though Kylie has made it as a celebrity, the 'M' is a reminder to always stay true to her real ambition: to become a real life mermaid.
Let's just hope it doesn't end up being 'M' for mistake...