Jen Selter, Instagram's famous booty girl, posted a photo of herself at the gym doing one of the things that she does best- squats.

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On Sunday, the 21-year-old model uploaded an image to her social media page where she dons a tight black top with purple sweatpants. Her legs are spread as she bends her knees down while gripping exercise equipment with her thick backside in plain sight.

In this picture, Selter gave a reminder on why squats can be known as a popular workout routine.

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"There's a reason you hear so much about squats....#WorkThatBootyGirls Doing a follow back spree on twitter in a bit, tweet me @jenselter," she wrote in the caption.

A majority of Selter's images tend to be closeup shots of her curvaceous figure whether it's her behind or her muscular abs and legs. Sometimes she's at the gym and sometimes she's at the beach in revealing bikinis.

One of her most previous snapshots shows her near a body of water in a green swimsuit where her body is exposed once again. As her hair flows down her back, her torso looks petite yet healthy with strength throughout her chest and backside.

Selter also has habit of doing some challenging poses, including her classic bridge pose. In one particular image, she gives her followers a heartfelt message on working to achieve their goals.

"Hope everyone is having an amazing day! Keep working hard toward whatever goal you've set for yourself," she wrote in the caption.

Tags: Jen Selter