She's all ~natural~.

Instagram and Aerie model Iskra Lawrence is known for her voluptuous booty and she wants all her haters to know it's the real deal.

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She recently took to Instagram and wrote, "Late night putting in work..even though some say it's bought but you've been putting in work the last 4 years to feel strong fit & healthy. I do it for me not anyone else. Also no filter no photoshop just lots of squats."

iskra lawrence
Instagram

Click through the gallery to see her most bootylicious pics.