Emily Ratajkowski is once again turning heads!

The Sports Illustrated model — who's currently enjoying a birthday vacay in Turks and Caicos — had some fun frolicking in the islands' crystal clear waters, documenting the experience on Instagram.

RELATED: Mia's Love Interest Michael From The Princess Diaries is SO Handsome Today — Wait Until You See the Photos!

"Mood," the 25-year-old captioned a video of herself shaking her butt in a barely-there bikini.

View this post on Instagram

Mood

A post shared by Emily Ratajkowski (@emrata) on

The brunette beauty also shared a clip of the moment she blew out her birthday candles, writing, "[Here's to] all my friends & family for celebrating my 25th birthday… couldn't have been better."

Scroll down to see more of Emily's most risqué Instagram posts to date!