Erin Wasson on Her Instagram Picture Backlash: "She Thinks It's Unfortunate and Unfair," Says Source

More on Erin Wasson's Instagram pic controversy

Erin Wasson did not expect the Instagram photo of her sunning in the tall grass with the ocean in the background to stir up any controversy.

In the picture the 32-year-old model posted this Sunday, Erin sits with her back to the camera, wearing only a pair of black bikini bottoms. But it was the sight of her thin frame that sent Internet commenters into a tizzy, shocked by her visible rib cage.

E! News learned from a source close to Erin that she thinks the public's reaction to her Instagram photo is unfair. "She's always been very slender," said the source. "She's the same weight now as she's been for the past two, four, six months. She's genetically just a very thin girl. It's the angle of how she's sitting that exaggerates her rib cage."