Kylie Jenner is no stranger to the tattoo parlor. Since turning 18 years old [1] in 2015, the reality TV star has added four designs to her ever-growing tattoo collection, and there's one thing they all have in common: they're red. While it's unclear why Kylie opted for the red ink, her most recent includes a scripted "M" on her pinky, which she got with her BFF, Jordyn Woods [2]. See more of her ink now, then check out our ultimate celebrity tattoo gallery [3].