Emily Ratajkowski is back with another sexy Instagram pic — and this time, her toned butt's on full display in a thong!

The brunette beauty covers her face with her hair in the steamy mirror selfie, which shows off her assets in revealing black underwear and a crop top.

MORE: Emily Ratajkowski's Diet — Get the Secret to Her Bangin' Bikini Body!

Simply captioned with a peace sign emoji, the 25-year-old has never apologized for proudly flaunting her sexuality on social media like her BFF Kim Kardashian.

https://www.instagram.com/p/BLw3vIRDLRi/

"The implication is that to be sexual is to be trashy because being sexy means playing into men's desires," she previously wrote in Lena Dunham's newsletter. "To me, 'sexy' is a kind of beauty, a kind of self-expression, one that is to be celebrated, one that is wonderfully female."

Get it, girl! For more of Emily's hottest IG photos, check out the gallery below.