(Yahoo!) - Warning: dangerous curves ahead!

Four months after giving birth, Kim Kardashian is feeling confident enough to show off her post-baby body, and the only way we can describe it is bootylicious.

The new mom snapped a mirror selfie — one of her favorite pastimes before getting pregnant with daughter North West — in which she is wearing a very revealing white bathing suit. Not only does the sexy shot show sideboob, but it also puts the blonde's famous backside on full display.

The 32-year-old let her nearly 20 million followers know that what they were seeing was all her, tagging it "#NoFilter."

One immediate fan of the photo was boyfriend Kanye West. An hour after Kim posted the shot, he retweeted to his 10 million followers, writing, "HEADING HOME NOW."

Comments from fans about the steamy Instagram photo ranged from "She's back!!!!," written by user hiimlala, to "You're a mom now. Let's keep it in mind," which came from jnorth2013.

Over the weekend, the "Keeping Up With the Kardashians" star revealed that she has been on the protein-rich Atkins Diet to help shed her baby weight. The reality TV star has also been working out regularly, including hitting a boot camp-style fitness class with Kanye last week.

We'd say her hard work is paying off.