The 18-year-old reality star posed in a white tank top and Moschino panties, but seemed more concerned about how her manicure looked in the pic. "P.S. broken nail ?," she captioned the Instagram selfie.
In a prior post, Kylie did pay tribute to her momager by sharing a baby pic of herself. "The moment we met. Happy birthday mommy," she wrote.
This isn't the first time the Keeping Up With the Kardashians star has stripped down to her skivvies for her followers. In June, when she was still just 17, Kylie posed in her boyfriend Tyga's underwear brand, Crisp. She captioned one of the Snapchat pics: "Not doing sh**."