Meet Karen, our busty, big-assed Mexican promoter, shaking up the Walmart aisles. Dressed in her tight, low-cut top and short skirt, she's all business, pushing products with a smile. But her true gift is her curvaceous body, drawing eyes to her huge, jiggling ass. She grinds and twerks, making every customer wish they were the lucky one to get a private show in the stockroom.