While the rest of the Kardashian clan sent North West birthday wishes on social media, Kylie Jenner did what she does best: posted a selfie.
Wearing a nude bikini that accentuated her curves, the 18-year-old reality star also showed off her controversial cornrow hairstyle.
No caption was needed for the sexy post, which has already been liked over a million times.
She's definitely not winning the aunt of the year award anytime soon.
For more photos of Kylie posing in swimwear, check out the gallery below!