Kourtney Kardashian Britney Spears - LEAD
Credit: Luca Teuchmann/WireImage

You know what they say: if you've got it, flaunt it—at least when you're Kourtney Kardashian.

The mother of three took to Instagram today to show off her seriously toned legs in a sexy bathroom selfie, and we're loving the stylish black and white ensemble she's rocking. In the sultry snap, the 37-year-old wows in a white turtleneck top that features bell sleeves and open stitching to show off her lacy black bra underneath. The oldest Kardashian sibling paired to piece with a black leather mini skirt and lace-up oxford style heels. The beauty's long brunette strands were styled in loose waves and she swiped on a bold red lip hue for added drama.

"Fresher than you," the Keeping Up with the Kardashians star cheekily captioned the photo.

She donned the outfit at a press event for the Manuka Doctor skincare line earlier today, and shared several more shots from the outing on her Snapchat account. Kardashian acts as the beauty label's Global Brand Ambassador.

VIDEO: Kourtney Kardashian's Sexiest Instagram Moments

Kourtney is definitely one hot mama.